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Author ![sorted by Author field, descending order (down)](img/sort_desc.gif) |
Muto, S.; Merk, N.; Schryvers, D.; Tanner, L.E. |
![goto web page (via DOI) doi](http://nano.uantwerpen.be/nanorefs/img/doi.gif)
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Title |
Displacive-replacive phase transformation in a Ni62.5Al37.5 phase studies by HREM and microdiffraction |
Type |
A1 Journal article |
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Year |
1993 |
Publication |
Philosophical magazine: B: physics of condensed matter: electronic, optical and magnetic properties |
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Volume |
67 |
Issue |
5 |
Pages |
673-689 |
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Keywords |
A1 Journal article; Electron microscopy for materials research (EMAT) |
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Abstract |
The structure of the metastable Ni2Al phase, which has long been a matter of controversy, has been carefully re-examined by means of high-resolution transmission electron microscopy (HREM) and electron microdiffraction. First, it is concluded that theas-quenched NixAl100-x(60 less-than-or-equal-to x less-than-or-equal-to 65) material already exhibits a partial omega-type collapse in a one-dimensional fashion which and is consistent with the anomalous dip in the phonon dispersion curve. Ni2Al precipitates are formed on annealing by thermal decomposition of the high-temperature NixAl100-xB2 phase and still retain the small omega-type shuffle. The amount of displacement in the well developed Ni2Al phase was estimated to be between 20 and 50% of the ideal omega collapse; this was determined by means of a combined technique of HREM and microdiffraction together with dynamical calculations of HREM images and diffraction intensities. |
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London |
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A1993LF72000005 |
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2007-07-08 |
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1364-2812;1463-6417; |
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UA library record; WoS full record; WoS citing articles |
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Times cited |
16 |
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no |
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Call Number |
UA @ lucian @ c:irua:6776 |
Serial |
740 |
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Author ![sorted by Author field, descending order (down)](img/sort_desc.gif) |
Mulkers, J. |
![find record details (via OpenURL) openurl](img/xref.gif)
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Title |
Confinement phenomena in chiral ferromagnetic films |
Type |
Doctoral thesis |
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Year |
2018 |
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156 p. |
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Doctoral thesis; Condensed Matter Theory (CMT) |
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Most recent IF: NA |
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Call Number |
UA @ admin @ c:irua:156461 |
Serial |
5200 |
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Author ![sorted by Author field, descending order (down)](img/sort_desc.gif) |
Muia, L.M.; Van Grieken, R. |
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Title |
Determination of rare earth elements in geological materials by total reflection X-ray fluorescence |
Type |
A1 Journal article |
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Year |
1991 |
Publication |
Analytica chimica acta |
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251 |
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177-181 |
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A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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0003-2670; 1873-4324 |
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UA library record |
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no |
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Call Number |
UA @ admin @ c:irua:663 |
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7786 |
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Author ![sorted by Author field, descending order (down)](img/sort_desc.gif) |
Muia, L.M.; Van Grieken, R. |
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Title |
Energy-dispersive X-ray fluorescence analysis of geological materials in borax beads using Tertian's binary coefficient approach combined with internal standard addition |
Type |
A1 Journal article |
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Year |
1991 |
Publication |
X-ray spectrometry |
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Volume |
20 |
Issue |
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Pages |
179-183 |
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Keywords |
A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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ISSN |
0049-8246 |
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UA library record |
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no |
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Call Number |
UA @ admin @ c:irua:662 |
Serial |
7903 |
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Author ![sorted by Author field, descending order (down)](img/sort_desc.gif) |
Muia, L.M.; Van Grieken, R. |
![find record details (via OpenURL) openurl](img/xref.gif)
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Title |
Theoretical evaluation of the effective alpha and De Jongh approaches in X-ray fluorescence analysis of geological materials in borax glass beads |
Type |
A1 Journal article |
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Year |
1989 |
Publication |
X-ray spectrometry |
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Volume |
18 |
Issue |
6 |
Pages |
259-262 |
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Keywords |
A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Abstract |
An evaluation of the accuracy and suitability of the LachanceTraill algorithm using effective α-coefficients, and the De Jongh α approach for x-ray fluorescence analysis of borax glass beads prepared from geological material was performed. By using theoretical α-coefficients obtained from the same standard and calculated elemental intensities, the two algorithms were compared under identical conditions. When only the monitor standard is used, the LachanceTrail1 approach is found to be inferior to the De Jongh basic α method. If multi-standard calibration is performed for both approaches, the accuracies are almost identical and no significant difference is found in the results. The LachanceTraill algorithm has the advantage of being easier to implement on a minicomputer and, when used without standards, it is found to give results within a few percent of the true values, which is a useful indicator in the choice of appropriate standards for more accurate analytical work. |
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A1989CE70800002 |
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2005-05-28 |
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ISSN |
0049-8246 |
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Additional Links |
UA library record; WoS full record; WoS citing articles |
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no |
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Call Number |
UA @ admin @ c:irua:116490 |
Serial |
8660 |
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Author ![sorted by Author field, descending order (down)](img/sort_desc.gif) |
Muia, L.M.; Van Grieken, R. |
![find record details (via OpenURL) openurl](img/xref.gif)
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Title |
Use of theoretical accurate binary influence coefficients with Tertian's equation in X-ray fluorescence analysis of silicate rocks in borax glass beads |
Type |
A1 Journal article |
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Year |
1990 |
Publication |
X-ray spectrometry |
Abbreviated Journal |
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Volume |
19 |
Issue |
3 |
Pages |
141-144 |
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Keywords |
A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Abstract |
A study of the suitability of the Tertian algorithm using new accurate binary influence coefficients and a comparison standard for x-ray fluorescence analysis of geological materials prepared as borax glass beads was performed. The algorithm was found to give satisfactory results for the analysis of four major components in geological materials. Even in the worst case, when there is a factor of 20 difference in the concentration in the specimen and a comparison standard, the algorithm gives results which differ from the true results by a factor of about 2. This makes the algorithm attractive as a diagnostic tool in analyses of unknown specimens and in the identification of appropriate standards. The binary coefficients are easily calculated so that the algorithm can be implemented on a minicomputer. |
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A1990DJ47800009 |
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2005-05-28 |
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0049-8246 |
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Additional Links |
UA library record; WoS full record; WoS citing articles |
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no |
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Call Number |
UA @ admin @ c:irua:116492 |
Serial |
8725 |
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Author ![sorted by Author field, descending order (down)](img/sort_desc.gif) |
Muhammad, S.; Wuyts, K.; De Wael, K.; Samson, R. |
![goto web page (via DOI) doi](http://nano.uantwerpen.be/nanorefs/img/doi.gif)
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Title |
Does leaf micro-morphology influence the recognition of particles on SEM images? |
Type |
A3 Journal article |
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Year |
2021 |
Publication |
International Journal of Environmental Pollution and Remediation |
Abbreviated Journal |
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Volume |
9 |
Issue |
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Pages |
22-37 |
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Keywords |
A3 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation); Antwerp Electrochemical and Analytical Sciences Lab (A-Sense Lab) |
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Abstract |
Scanning electron microscopy (SEM) remains a popular approach to determine the shape, size, density and elemental composition of particles collected on leaf surfaces, but the effect of leaf micro-morphology on particle counts is not very well known. In this study, leaves of sixteen urban plant species were examined for particle density in June and September 2016 using SEM. The investigated plant species differed in leaf micro-morphology involving trichomes, raised stomata, epicuticular wax crystals and convex epidermal cells forming deep grooves between cells. The particle density on leaves of the investigated plant species was estimated by particle size fraction and leaf side. Particle density was significantly higher on the adaxial (AD) leaf side compared to the abaxial (AB) leaf side and higher for fine-particles than coarse-particles. The effect of trichome density on particle density of the AB and the AD leaf side was indicated to be significant and positive for both coarse and fine-particles in June but not in September. The successive repeated measurements elucidated that features constructing the topography of a leaf surface such as trichomes, stomata, and epidermal cells frequently contributed towards the edge enhancement effect, resulting in exaggerated particle counts. Besides, the mechanical drift contributed to the disparity in particle density measurements. Lastly, the reduction in particle density between successive measurements were imputed on the charging effect. These results enable us to suggest that in addition to characterization of micro-morphological features on a leaf surface, SEM will continue to be a useful approach for determining the particle: shape, size, elemental composition and density of the deposited particles. Nonetheless, the disparity in particle density measurements can occur due to abnormal particle recognition. Based on the results of September, we recommend that within-session successive repeated measurements (~ n ≥ 5) need to be performed to remove measurement uncertainties and obtain reliable quantitative data of particle counts using SEM. |
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2021-09-15 |
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OpenAccess |
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Most recent IF: NA |
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Call Number |
UA @ admin @ c:irua:181797 |
Serial |
7822 |
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Author ![sorted by Author field, descending order (down)](img/sort_desc.gif) |
Mozo, I.; Lacoste, L.; De Cocker, P.; Vlaeminck, S.E.; Sperandio, M.; Bessiere, Y.; Hernandez-Raquet, G.; Caligaris, M.; Barillon, B.; Martin Ruel, S. |
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Title |
Impact of temperature on mainstream deammonification performance and microbial community |
Type |
P3 Proceeding |
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Year |
2016 |
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Pages |
3 p.
T2 - IWA World Water Congress & Exhibition (W |
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Keywords |
P3 Proceeding; Engineering sciences. Technology; Sustainable Energy, Air and Water Technology (DuEL) |
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Call Number |
UA @ admin @ c:irua:151121 |
Serial |
8065 |
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Author ![sorted by Author field, descending order (down)](img/sort_desc.gif) |
Mozo, I.; Lacoste, L.; aussenac, J.; De Cocker, P.; Vlaeminck, S.E.; Sperandio, M.; Caligaris, M.; Graveleau, L.; Barillon, B.; Martin Ruel, S. |
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Title |
Towards application of mainstream deammonification on municipal wastewater in warm and cold areas |
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P3 Proceeding |
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2016 |
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4 p.
T2 - World Cities Summit, Singapore Internati |
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P3 Proceeding; Engineering sciences. Technology; Sustainable Energy, Air and Water Technology (DuEL) |
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Call Number |
UA @ admin @ c:irua:151124 |
Serial |
8678 |
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Author ![sorted by Author field, descending order (down)](img/sort_desc.gif) |
Mozo, I.; Lacoste, L.; Aussenac, J.; De Cocker, P.; Vlaeminck, S.E.; Sperandio, M.; Caligaris, M.; Barillon, B.; Martin Ruel, S. |
![find record details (via OpenURL) openurl](img/xref.gif)
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Title |
Overcoming the challenges for mainstream deammonification on municipal wastewater in warm and cold areas |
Type |
P3 Proceeding |
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2016 |
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3 p.
T2 - 13th IWA Leading-Edge Conference on Wate |
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Keywords |
P3 Proceeding; Engineering sciences. Technology; Sustainable Energy, Air and Water Technology (DuEL) |
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Call Number |
UA @ admin @ c:irua:151137 |
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8351 |
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Author ![sorted by Author field, descending order (down)](img/sort_desc.gif) |
Mozo, I.; Lacoste, L.; Aussenac, J.; De Cocker, P.; Vlaeminck, S.E.; Sperandio, M.; Caligaris, M.; Barillon, B.; Martin Ruel, S. |
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Towards application of mainstream deammonification on municipal wastewater in warm and cold areas |
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P3 Proceeding |
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2016 |
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4 p.
T2 - WEF/IWA Nutrient Removal and Recovery Co |
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P3 Proceeding; Engineering sciences. Technology; Sustainable Energy, Air and Water Technology (DuEL) |
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Call Number |
UA @ admin @ c:irua:151136 |
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8679 |
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Mortier, S.T.F.C.; Van Hoey, S.; Cierkens, K.; Gernaey, K.V.; Seuntjens, P.; De Baets, B.; De Beer, T.; Nopens, I. |
![goto web page (via DOI) doi](http://nano.uantwerpen.be/nanorefs/img/doi.gif)
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Title |
A GLUE uncertainty analysis of a drying model of pharmaceutical granules |
Type |
A1 Journal article |
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Year |
2013 |
Publication |
European journal of pharmaceutics and biopharmaceutics |
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Volume |
85 |
Issue |
3:b |
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984-995 |
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Keywords |
A1 Journal article; Pharmacology. Therapy; Sustainable Energy, Air and Water Technology (DuEL) |
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Abstract |
A shift from batch processing towards continuous processing is of interest in the pharmaceutical industry. However, this transition requires detailed knowledge and process understanding of all consecutive unit operations in a continuous manufacturing line to design adequate control strategies. This can be facilitated by developing mechanistic models of the multi-phase systems in the process. Since modelling efforts only started recently in this field, uncertainties about the model predictions are generally neglected. However, model predictions have an inherent uncertainty (i.e. prediction uncertainty) originating from uncertainty in input data, model parameters, model structure, boundary conditions and software. In this paper, the model prediction uncertainty is evaluated for a model describing the continuous drying of single pharmaceutical wet granules in a six-segmented fluidized bed drying unit, which is part of the full continuous from-powder-to-tablet manufacturing line (Consigma (TM), GEA Pharma Systems). A validated model describing the drying behaviour of a single pharmaceutical granule in two consecutive phases is used. First of all, the effect of the assumptions at the particle level on the prediction uncertainty is assessed. Secondly, the paper focuses on the influence of the most sensitive parameters in the model. Finally, a combined analysis (particle level plus most sensitive parameters) is performed and discussed. To propagate the uncertainty originating from the parameter uncertainty to the model output, the Generalized Likelihood Uncertainty Estimation (GLUE) method is used. This method enables a modeller to incorporate the information obtained from the experimental data in the assessment of the uncertain model predictions and to find a balance between model performance and data precision. A detailed evaluation of the obtained uncertainty analysis results is made with respect to the model structure, interactions between parameters and uncertainty boundaries. (C) 2013 Elsevier B.V. All rights reserved. |
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000330200800019 |
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2013-03-29 |
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ISSN |
0939-6411 |
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Additional Links |
UA library record; WoS full record; WoS citing articles |
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Call Number |
UA @ admin @ c:irua:114876 |
Serial |
8005 |
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Author ![sorted by Author field, descending order (down)](img/sort_desc.gif) |
Moropoulou, A.; Koui, M.; Theoulakis, P.; Bakolas, A.; Roumpopoulos, K.; Michailidis, P.; Van Grieken, R.; Cardell-Fernandez, C. |
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Title |
Microstructural criteria for the evaluation of stone susceptibility to sea-salt decay |
Type |
P3 Proceeding |
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2002 |
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P3 Proceeding; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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UA library record |
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Open Access |
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Approved |
no |
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Call Number |
UA @ admin @ c:irua:36681 |
Serial |
8249 |
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Permanent link to this record |
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Author ![sorted by Author field, descending order (down)](img/sort_desc.gif) |
Moropoulou, A.; Cakmak, A.; Labropoulos, K.C.; Van Grieken, R.; Torfs, K. |
![find record details (via OpenURL) openurl](img/xref.gif)
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Title |
Accelerated microstructural evolution of a calcium-silicate-hydrate (C-S-H) phase in pozzolanic pastes using fine siliceous sources: comparison with historic pozzolanic mortars |
Type |
A1 Journal article |
|
Year |
2004 |
Publication |
Cement and concrete research |
Abbreviated Journal |
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Volume |
34 |
Issue |
|
Pages |
1-6 |
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Keywords |
A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Wos |
000224016100001 |
Publication Date |
2003-06-20 |
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Series Title |
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Abbreviated Series Title |
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Series Volume |
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Edition |
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ISSN |
0008-8846 |
ISBN |
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Additional Links |
UA library record; WoS full record; WoS citing articles |
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Impact Factor |
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Times cited |
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Open Access |
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Notes |
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Approved |
no |
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Call Number |
UA @ admin @ c:irua:49510 |
Serial |
7411 |
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Permanent link to this record |
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Author ![sorted by Author field, descending order (down)](img/sort_desc.gif) |
Moropoulou, A.; Bisbikou, K.; Van Grieken, R.; Torfs, K.; Polikreti, K. |
![find record details (via OpenURL) openurl](img/xref.gif)
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Title |
Correlation between aerosols, deposits, and weathering crusts on ancient marbles |
Type |
A1 Journal article |
|
Year |
2001 |
Publication |
Environmental technology |
Abbreviated Journal |
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|
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Volume |
22 |
Issue |
|
Pages |
607-618 |
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Keywords |
A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Wos |
000169968300001 |
Publication Date |
2008-06-20 |
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Series Editor |
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Series Title |
|
Abbreviated Series Title |
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Series Volume |
|
Series Issue |
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Edition |
|
|
|
ISSN |
0959-3330 |
ISBN |
|
Additional Links |
UA library record; WoS full record; WoS citing articles |
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|
Impact Factor |
|
Times cited |
|
Open Access |
|
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|
Notes |
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Approved |
no |
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|
Call Number |
UA @ admin @ c:irua:36081 |
Serial |
7734 |
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Permanent link to this record |
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Author ![sorted by Author field, descending order (down)](img/sort_desc.gif) |
Moropoulou, A.; Bisbikou, K.; Torfs, K.; Van Grieken, R.; Zezza, F.; Macri, F. |
![find record details (via OpenURL) openurl](img/xref.gif)
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Title |
Origin and growth of weathering crusts on ancient marbles in industrial atmosphere |
Type |
A1 Journal article |
|
Year |
1998 |
Publication |
Atmospheric environment : an international journal |
Abbreviated Journal |
|
|
|
Volume |
32 |
Issue |
|
Pages |
967-982 |
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|
Keywords |
A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Abstract |
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Address |
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Corporate Author |
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Place of Publication |
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Wos |
000073710900002 |
Publication Date |
2002-07-26 |
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Series Editor |
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Series Title |
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Abbreviated Series Title |
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Series Volume |
|
Series Issue |
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Edition |
|
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ISSN |
1352-2310 |
ISBN |
|
Additional Links |
UA library record; WoS full record; WoS citing articles |
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|
Impact Factor |
|
Times cited |
|
Open Access |
|
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|
Notes |
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Approved |
no |
|
|
Call Number |
UA @ admin @ c:irua:20964 |
Serial |
8348 |
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Permanent link to this record |
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Author ![sorted by Author field, descending order (down)](img/sort_desc.gif) |
Moropoulou, A.; Bisbikou, K.; Torfs, K.; Van Grieken, R. |
![find record details (via OpenURL) openurl](img/xref.gif)
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Title |
Atmospheric deposition as decay factor for the Demeter sanctuary ruins in the industrial atmosphere of Eleusis, Greece |
Type |
A1 Journal article |
|
Year |
1998 |
Publication |
Environmental technology |
Abbreviated Journal |
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|
|
Volume |
19 |
Issue |
|
Pages |
1039-1047 |
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Keywords |
A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Abstract |
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Corporate Author |
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Place of Publication |
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Wos |
000076784500007 |
Publication Date |
2008-06-20 |
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Series Editor |
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Series Title |
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Abbreviated Series Title |
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Series Volume |
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Series Issue |
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Edition |
|
|
|
ISSN |
0959-3330 |
ISBN |
|
Additional Links |
UA library record; WoS full record; WoS citing articles |
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|
Impact Factor |
|
Times cited |
|
Open Access |
|
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Notes |
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Approved |
no |
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|
Call Number |
UA @ admin @ c:irua:22776 |
Serial |
7523 |
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Permanent link to this record |
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Author ![sorted by Author field, descending order (down)](img/sort_desc.gif) |
Moropoulou, A.; Bisbikou, K.; Torfs, K.; Van Grieken, R. |
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Title |
Risk analysis for the protection of cultural heritage from industrial pollution |
Type |
H3 Book chapter |
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Year |
1999 |
Publication |
|
Abbreviated Journal |
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Volume |
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Issue |
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Pages |
475-484
T2 - Structural studies, repairs and maint |
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Keywords |
H3 Book chapter; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Additional Links |
UA library record |
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|
Impact Factor |
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Times cited |
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Open Access |
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Notes |
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Approved |
no |
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|
Call Number |
UA @ admin @ c:irua:27598 |
Serial |
8483 |
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Permanent link to this record |
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Author ![sorted by Author field, descending order (down)](img/sort_desc.gif) |
Moro, G.; Foumthuim, C.J.D.; Spinaci, M.; Martini, E.; Cimino, D.; Balliana, E.; Lieberzeit, P.; Romano, F.; Giacometti, A.; Campos, R.; De Wael, K.; Moretto, L.M. |
![goto web page (via DOI) doi](http://nano.uantwerpen.be/nanorefs/img/doi.gif)
|
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Title |
How perfluoroalkyl substances modify fluorinated self-assembled monolayer architectures : an electrochemical and computational study |
Type |
A1 Journal article |
|
Year |
2022 |
Publication |
Analytica chimica acta |
Abbreviated Journal |
|
|
|
Volume |
1204 |
Issue |
|
Pages |
339740-12 |
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|
Keywords |
A1 Journal article; Antwerp Electrochemical and Analytical Sciences Lab (A-Sense Lab) |
|
|
Abstract |
There is an urgent need for sensing strategies to screen perfluoroalkyl substances (PFAS) in aqueous matrices. These strategies must be applicable in large-scale monitoring plans to face the ubiquitous use of PFAS, their wide global spread, and their fast evolution towards short-chain, branched molecules. To this aim, the changes in fluorinated self-assembled monolayers (SAM) with different architectures (pinholes/defects-free and with randomized pinholes/defects) were studied upon exposure to both long and short-chain PFAS. The applicability of fluorinated SAM in PFAS sensing was evaluated. Changes in the SAM structures were characterised combining electrochemical impedance spectroscopy and voltam-metric techniques. The experimental data interpretation was supported by molecular dynamics simu-lations to gain a more in-depth understanding of the interaction mechanisms involved. Pinhole/defect-free fluorinated SAM were found to be applicable to long-chain PFAS screening within switch-on sensing strategy, while a switch-off sensing strategy was reported for screening of both short/long-chain PFAS. These strategies confirmed the possibility to play on fluorophilic interactions when designing PFAS screening methods.(c) 2022 Elsevier B.V. All rights reserved. |
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|
Wos |
000789493000010 |
Publication Date |
2022-03-17 |
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Series Editor |
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Series Title |
|
Abbreviated Series Title |
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Series Volume |
|
Series Issue |
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Edition |
|
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|
ISSN |
0003-2670; 1873-4324 |
ISBN |
|
Additional Links |
UA library record; WoS full record; WoS citing articles |
|
|
Impact Factor |
|
Times cited |
|
Open Access |
Not_Open_Access |
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|
Notes |
|
Approved |
no |
|
|
Call Number |
UA @ admin @ c:irua:188658 |
Serial |
8880 |
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Permanent link to this record |
|
|
|
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Author ![sorted by Author field, descending order (down)](img/sort_desc.gif) |
Moro, G.; De Wael, K.; Moretto, L.M. |
![goto web page url](http://nano.uantwerpen.be/nanorefs/img/www.gif)
![find record details (via OpenURL) openurl](img/xref.gif)
|
|
Title |
Challenges in the electrochemical (bio)sensing of non-electroactive food and environmental contaminants |
Type |
A1 Journal article |
|
Year |
2019 |
Publication |
Current opinion in electrochemistry |
Abbreviated Journal |
|
|
|
Volume |
16 |
Issue |
16 |
Pages |
57-65 |
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Keywords |
A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
|
|
Abstract |
The electrochemical detection of non-electroactive contaminants can be successfully faced via the use of indirect detection strategies. These strategies can provide sensitive and selective responses often coupled with portable and user-friendly analytical tools. Indirect detection strategies are usually based on the change in the signal of an electroactive probe, induced by the presence of the target molecule at a modified electrode. This critical review aims at addressing the developments in indirect electro-sensing strategies for non-electroactive contaminants in food and environmental analysis in the last years (2017-2019). Emphasis is given to the strategy design, the electrode modifiers used and the feasibility of technological transfer. |
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Corporate Author |
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Thesis |
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Publisher |
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Place of Publication |
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Editor |
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Language |
|
Wos |
000485814400010 |
Publication Date |
2019-04-20 |
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Series Editor |
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Series Title |
|
Abbreviated Series Title |
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|
Series Volume |
|
Series Issue |
|
Edition |
|
|
|
ISSN |
2451-9103; 2451-9111 |
ISBN |
|
Additional Links |
UA library record; WoS full record; WoS citing articles |
|
|
Impact Factor |
|
Times cited |
4 |
Open Access |
|
|
|
Notes |
; ; |
Approved |
Most recent IF: NA |
|
|
Call Number |
UA @ admin @ c:irua:159574 |
Serial |
5498 |
|
Permanent link to this record |
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|
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Author ![sorted by Author field, descending order (down)](img/sort_desc.gif) |
Moors, K.; Soree, B.; Tokei, Z.; Magnus, W. |
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|
Title |
Electron relaxation times and resistivity in metallic nanowires due to tilted grain boundary planes |
Type |
P1 Proceeding |
|
Year |
2015 |
Publication |
On Ultimate Integration On Silicon (eurosoi-ulis) |
Abbreviated Journal |
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|
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Volume |
|
Issue |
|
Pages |
201-204 |
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|
Keywords |
P1 Proceeding; Condensed Matter Theory (CMT) |
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|
Abstract |
We calculate the resistivity contribution of tilted grain boundaries with varying parameters in sub-10nm diameter metallic nanowires. The results have been obtained with the Boltzmann transport equation and Fermi's golden rule, retrieving correct state-dependent relaxation times. The standard approximation schemes for the relaxation times are shown to fail when grain boundary tilt is considered. Grain boundaries tilted under the same angle or randomly tilted induce a resistivity decrease. |
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Address |
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Corporate Author |
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Thesis |
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Publisher |
Ieee |
Place of Publication |
New york |
Editor |
|
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|
Language |
|
Wos |
|
Publication Date |
|
|
|
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
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|
|
Series Volume |
|
Series Issue |
|
Edition |
|
|
|
ISSN |
978-1-4799-6911-1 |
ISBN |
|
Additional Links |
UA library record; WoS full record; WoS citing articles |
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|
Impact Factor |
|
Times cited |
|
Open Access |
|
|
|
Notes |
|
Approved |
Most recent IF: NA |
|
|
Call Number |
UA @ lucian @ c:irua:144776 |
Serial |
4651 |
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Permanent link to this record |
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Author ![sorted by Author field, descending order (down)](img/sort_desc.gif) |
Moors, K.; Contino, A.; Van de Put, M.L.; Vandenberghe, W.G.; Fischetti, M., V; Magnus, W.; Sorée, B. |
![goto web page (via DOI) doi](http://nano.uantwerpen.be/nanorefs/img/doi.gif)
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Title |
Theoretical study of scattering in graphene ribbons in the presence of structural and atomistic edge roughness |
Type |
A1 Journal article |
|
Year |
2019 |
Publication |
Physical review materials |
Abbreviated Journal |
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Volume |
3 |
Issue |
2 |
Pages |
024001 |
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Keywords |
A1 Journal article; Condensed Matter Theory (CMT) |
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Abstract |
We investigate the diffusive electron-transport properties of charge-doped graphene ribbons and nanoribbons with imperfect edges. We consider different regimes of edge scattering, ranging from wide graphene ribbons with (partially) diffusive edge scattering to ribbons with large width variations and nanoribbons with atomistic edge roughness. For the latter, we introduce an approach based on pseudopotentials, allowing for an atomistic treatment of the band structure and the scattering potential, on the self-consistent solution of the Boltzmann transport equation within the relaxation-time approximation and taking into account the edge-roughness properties and statistics. The resulting resistivity depends strongly on the ribbon orientation, with zigzag (armchair) ribbons showing the smallest (largest) resistivity and intermediate ribbon orientations exhibiting intermediate resistivity values. The results also show clear resistivity peaks, corresponding to peaks in the density of states due to the confinement-induced subband quantization, except for armchair-edge ribbons that show a very strong width dependence because of their claromatic behavior. Furthermore, we identify a strong interplay between the relative position of the two valleys of graphene along the transport direction, the correlation profile of the atomistic edge roughness, and the chiral valley modes, leading to a peculiar strongly suppressed resistivity regime, most pronounced for the zigzag orientation. |
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Address |
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Corporate Author |
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Thesis |
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Publisher |
|
Place of Publication |
|
Editor |
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Language |
|
Wos |
000458161800001 |
Publication Date |
2019-02-06 |
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Series Editor |
|
Series Title |
|
Abbreviated Series Title |
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|
|
Series Volume |
|
Series Issue |
|
Edition |
|
|
|
ISSN |
2475-9953 |
ISBN |
|
Additional Links |
UA library record; WoS full record; WoS citing articles |
|
|
Impact Factor |
|
Times cited |
4 |
Open Access |
|
|
|
Notes |
; We acknowledge the Research Foundation – Flanders (FWO) for supporting K.M.'s research visit at the University of Texas at Dallas, as well as the support by the National Research Fund Luxembourg (FNR) with ATTRACT Grant No. 7556175. ; |
Approved |
Most recent IF: NA |
|
|
Call Number |
UA @ admin @ c:irua:157499 |
Serial |
5235 |
|
Permanent link to this record |
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Author ![sorted by Author field, descending order (down)](img/sort_desc.gif) |
Montiel, F.N.; Parrilla, M.; Sleegers, N.; Van Durme, F.; van Nuijs, A.L.N.; De Wael, K. |
![goto web page url](http://nano.uantwerpen.be/nanorefs/img/www.gif)
![find record details (via OpenURL) openurl](img/xref.gif)
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Title |
Electrochemical sensing of amphetamine-type stimulants (pre)-precursors to fight against the illicit production of synthetic drugs |
Type |
A1 Journal article |
|
Year |
2022 |
Publication |
Electrochimica acta |
Abbreviated Journal |
|
|
|
Volume |
436 |
Issue |
|
Pages |
141446-11 |
|
|
Keywords |
A1 Journal article; Engineering sciences. Technology; Toxicological Centre; Antwerp Electrochemical and Analytical Sciences Lab (A-Sense Lab) |
|
|
Abstract |
The illicit drug precursor market for the manufacture of amphetamine-type stimulants (ATS), mainly amphetamine, methamphetamine and methylenedioxymethamphetamine (MDMA), has emerged quickly in the last years. The evidence of a more complex and sophisticated drug market underlines the pressing need for new on-site methods to quickly detect precursors of synthetic drugs, with electrochemical analysis as a promising technique. Herein, the electrochemical fingerprints of ten common ATS precursors-3-oxo-2-phenylbutanenitrile (APAAN), 3-oxo-2-phenylbutanamide (APAA), methyl 3-oxo-2-phenylbutanoate (MAPA), benzyl methyl ketone (BMK), 1-(1,3-benzodioxol-5-yl)propan-2-one (PMK), ephedrine, pseudoephedrine, safrole, sassafras oil and piperonal- are reported for the first time. The electrochemical screening disclosed the redox inactivity of BMK, which is an essential starting material for the production of ATS. Therefore, the local derivatization of BMK at an electrode surface by reductive amination is presented as a feasible solution to enrich its electrochemical fingerprint. To prove that, the resulting mixture was analyzed using a set of chromatographic techniques to understand the reaction mechanism and to identify possible electrochemical active products. Two reaction products (i.e. methamphetamine and 1-phenylpropan-2-ol) were found and characterized using mass spectrometry and electrochemical methods. Subsequently, the optimization of the reaction parameters was carefully addressed to set the portable electrochemical sensing strategy. Ultimately, the analysis concept was validated for the qualitative identification of ATS precursors in seizures from a forensic institute. Overall, the electrochemical approach demonstrates to be a useful and affordable analytical tool for the early identification of ATS precursors to prevent trafficking and drug manufacture in clandestine laboratories. |
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Corporate Author |
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Thesis |
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Place of Publication |
|
Editor |
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Language |
|
Wos |
000914833800003 |
Publication Date |
2022-10-27 |
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Series Editor |
|
Series Title |
|
Abbreviated Series Title |
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|
|
Series Volume |
|
Series Issue |
|
Edition |
|
|
|
ISSN |
0013-4686 |
ISBN |
|
Additional Links |
UA library record; WoS full record |
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|
Impact Factor |
|
Times cited |
|
Open Access |
OpenAccess |
|
|
Notes |
|
Approved |
no |
|
|
Call Number |
UA @ admin @ c:irua:191622 |
Serial |
8858 |
|
Permanent link to this record |
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Author ![sorted by Author field, descending order (down)](img/sort_desc.gif) |
Montiel, F.N. |
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Title |
Voltage against illicit drug trafficking : capabilities of electrochemical fingerprinting to detect illicit drugs |
Type |
Doctoral thesis |
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Year |
2024 |
Publication |
|
Abbreviated Journal |
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Volume |
|
Issue |
|
Pages |
256 p. |
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Keywords |
Doctoral thesis; Pharmacology. Therapy; Engineering sciences. Technology; Antwerp Electrochemical and Analytical Sciences Lab (A-Sense Lab) |
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Abstract |
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Address |
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Corporate Author |
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Publisher |
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Place of Publication |
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Wos |
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Abbreviated Series Title |
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Series Issue |
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Edition |
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|
ISBN |
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Additional Links |
UA library record |
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Impact Factor |
|
Times cited |
|
Open Access |
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|
Notes |
|
Approved |
Most recent IF: NA |
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|
Call Number |
UA @ admin @ c:irua:204707 |
Serial |
9243 |
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Permanent link to this record |
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Author ![sorted by Author field, descending order (down)](img/sort_desc.gif) |
Monico, L.; Sorace, L.; Cotte, M.; de Nolf, W.; Janssens, K.; Romani, A.; Miliani, C. |
![goto web page (via DOI) doi](http://nano.uantwerpen.be/nanorefs/img/doi.gif)
|
|
Title |
Disclosing the binding medium effects and the pigment solubility in the (photo)reduction process of chrome yellows (PbCrO4/PbCr1-xSxO4) |
Type |
A1 Journal article |
|
Year |
2019 |
Publication |
ACS Omega |
Abbreviated Journal |
|
|
|
Volume |
4 |
Issue |
4 |
Pages |
6607-6619 |
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|
Keywords |
A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
|
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Abstract |
The darkening due to chemical alteration of chrome yellows (PbCrO4/PbCr1-xSxO4) is a phenomenon threatening a large number of 19th-20th century paintings, including the Amsterdam Sunflowers by Vincent van Gogh. Our earlier studies have proven that the alteration is due to a Cr(VI) -> Cr(III) reduction with Cr(V)-species that are formed as long-lived intermediates and that bCr(1-x)S(x)O(4) (0 < x <= 0.8) types undergo reduction more readily than monoclinic, S-free, PbCrO4. In this context, there is still lack of knowledge about the effects of the chemical properties of the binding medium (i.e., chemical composition and drying process) and the solubility of chrome yellows on the overall reduction pathways. Here, we study a series of naturally and photochemically aged mock-up paints prepared by mixing chrome yellow powders (PbCrO4/PbCr0.2S0.8O4) with either linseed oil or a water-based acrylic emulsion as the binding medium. Equivalent paints made up of the highly soluble K2CrO4 were also investigated and used as benchmarks to provide a more in-depth understanding of the influence of the solubility on the chromate reduction pathways in the two different binders. A combination of synchrotron radiation-based Cr K-edge X-ray absorption near edge structure (XANES), electron paramagnetic resonance (EPR), and UV-Visible spectroscopy measurements shows that: (1) the Cr(VI) reduction results from the interaction between the pigment and the binder; (2) the process is more significant in oil, giving rise to Cr(V)- and Cr(III)-species as well as oxidized organic compounds; (3) the lightfastness of the chrome yellow pigment is enhanced in the acrylic binder; and (4) the tendency toward chromium reduction increases with increasing solubility of the pigment. Based on our findings, we propose a scheme for the mechanism of the (photo)reduction process of chrome yellows in the oil and acrylic binder. Overall, our results provide new insights into the factors driving the degradation of lead chromate-based paints in artworks and contribute to the development of strategies for preserving them over time. |
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Wos |
000466552500057 |
Publication Date |
2019-04-10 |
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ISSN |
2470-1343 |
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Additional Links |
UA library record; WoS full record; WoS citing articles |
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Times cited |
4 |
Open Access |
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Notes |
; The research was financially supported by the European research project IPERION-CH, funded by the European Commission, H2020-INFRAIA-2014-2015 (grant agreement n. 654028), and by the project AMIS, within the program Dipartimenti di Eccellenza 2018-2022, funded by MIUR and University of Perugia. The University of Perugia is also acknowledged for financial support under the program “Ricerca di Base 2017”. L.S. acknowledges the financial support of Ente CRF. For the beamtime grants received, we thank the ESRF (experiment no. HG64 and in-house beamtimes). ; |
Approved |
Most recent IF: NA |
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Call Number |
UA @ admin @ c:irua:160416 |
Serial |
5577 |
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Author ![sorted by Author field, descending order (down)](img/sort_desc.gif) |
Monico, L.; Rosi, F.; Miliani, C.; Daveri, A.; Brunetti, B.G. |
![goto web page (via DOI) doi](http://nano.uantwerpen.be/nanorefs/img/doi.gif)
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Title |
Non-invasive identification of metal-oxalate complexes on polychrome artwork surfaces by reflection mid-infrared spectroscopy |
Type |
A1 Journal article |
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Year |
2013 |
Publication |
Spectrochimica acta: part A: molecular and biomolecular spectroscopy |
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Volume |
116 |
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Pages |
270-280 |
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A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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In this work a reflection mid-infrared spectroscopy study of twelve metal-oxalate complexes, of interest in art conservation science as alteration compounds, was performed. Spectra of the reference materials highlighted the presence of derivative-like and/or inverted features for the fundamental vibrational modes as result of the main contribution from the surface component of the reflected light. In order to provide insights in the interpretation of theses spectral distortions, reflection spectra were compared with conventional transmission ones. The Kramers-Kronig (KK) algorithm, employed to correct for the surface reflection distortions, worked properly only for the derivative-like bands. Therefore, to pay attention to the use of this algorithm when interpreting the reflection spectra is recommended. The outcome of this investigation was exploited to discriminate among different oxalates on thirteen polychrome art-works analyzed in situ by reflection mid-infrared spectroscopy. The visualization of the v(s)(CO) modes (1400-1200 cm(-1)) and low wavenumber bands (below 900 cm(-1)) in the raw reflection profiles allowed Ca, Cu and Zn oxalates to be identified. Further information about the speciation of different hydration forms of calcium oxalates were obtained by using the KK transform. The work proves reflection mid-infrared spectroscopy to be a reliable and sensitive spectro-analytical method for identifying and mapping different metal-oxalate alteration compounds on the surface of artworks, thus providing conservation scientists with a non-invasive tool to obtain information on the state of conservation and causes of alteration of artworks. (C) 2013 Elsevier B.V. All rights reserved. |
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Wos |
000326207900035 |
Publication Date |
2013-07-12 |
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ISSN |
1386-1425 |
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Additional Links |
UA library record; WoS full record; WoS citing articles |
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no |
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Call Number |
UA @ admin @ c:irua:112701 |
Serial |
8313 |
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Author ![sorted by Author field, descending order (down)](img/sort_desc.gif) |
Monico, L.; Hendriks, E.; Geldof, M.; Miliani, C.; Janssens, K.; Brunetti, B.G.; Cotte, M.; Vanmeert, F.; Chieli, A.; Van der Snickt, G.; Romani, A.; Melo, M.J. |
![find book details (via ISBN) isbn](img/isbn.gif)
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Title |
Chemical alteration and colour changes in the Amsterdam sunflowers |
Type |
H1 Book chapter |
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Year |
2019 |
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Abbreviated Journal |
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Issue |
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Pages |
125-158
T2 - Van Gogh’s Sunflowers illuminated – a |
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Keywords |
H1 Book chapter; Art; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation); Antwerp Cultural Heritage Sciences (ARCHES) |
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Abstract |
This chapter provides a description of colour changes in the Amsterdam Sunflowers due to chemical alteration of pigments, with a focus on geranium lakes and chrome yellows. The brilliant and forceful colours of these and other late nineteenth-century synthetic materials offered artists such as Vincent van Gogh new means of artistic expression that exploited a range of contrasting hues and tints. However, geranium lakes have a strong tendency to fade and chrome yellows to darken under the influence of light. Van Gogh, like other artists of his day, was aware of this drawback, yet he continued to favour the use of both pigments up until his death in July 1890 due to the unparalleled effects they gave. In April 1888, Vincent wrote to his brother Theo: Van Gogh's use of unstable colours opens a series of questions regarding the extent to which colour change affects the way his paintings look today, as discussed here in relation to the Amsterdam Sunflowers. Furthermore, given the frequency with which geranium lakes and chrome yellows occur in Van Gogh's paintings of the period 1888–90 and the predominance of chrome yellows in Sunflowers, it becomes important to understand the factors that can drive these processes of deterioration in order to develop appropriate strategies for conserving the artist's works. |
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Publication Date |
2020-11-25 |
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978-94-6372-532-3 |
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UA library record |
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no |
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Call Number |
UA @ admin @ c:irua:190779 |
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7640 |
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Mobaraki, A.; Sevik, C.; Yapicioglu, H.; Cakir, D.; Gulseren, O. |
![find record details (via OpenURL) openurl](img/xref.gif)
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Title |
Temperature-dependent phonon spectrum of transition metal dichalcogenides calculated from the spectral energy density: Lattice thermal conductivity as an application |
Type |
A1 Journal article |
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Year |
2019 |
Publication |
Physical review B |
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Volume |
100 |
Issue |
3 |
Pages |
035402 |
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A1 Journal article; Condensed Matter Theory (CMT) |
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Predicting the mechanical and thermal properties of quasi-two-dimensional (2D) transition metal dichalco-genides (TMDs) is an essential task necessary for their implementation in device applications. Although rigorous density-functional-theory-based calculations are able to predict mechanical and electronic properties, mostly they are limited to zero temperature. Classical molecular dynamics facilitates the investigation of temperature-dependent properties, but its performance highly depends on the potential used for defining interactions between the atoms. In this study, we calculated temperature-dependent phonon properties of single-layer TMDs, namely, MoS2, MoSe2, WS2, and WSe2, by utilizing Stillinger-Weber-type potentials with optimized sets of parameters with respect to the first-principles results. The phonon lifetimes and contribution of each phonon mode in thermal conductivities in these monolayer crystals are systematically investigated by means of the spectralenergy-density method based on molecular dynamics simulations. The obtained results from this approach are in good agreement with previously available results from the Green-Kubo method. Moreover, detailed analysis of lattice thermal conductivity, including temperature-dependent mode decomposition through the entire Brillouin zone, shed more light on the thermal properties of these 2D crystals. The LA and TA acoustic branches contribute most to the lattice thermal conductivity, while ZA mode contribution is less because of the quadratic dispersion around the Brillouin zone center, particularly in MoSe2 due to the phonon anharmonicity, evident from the redshift, especially in optical modes, by increasing temperature. For all the considered 2D crystals, the phonon lifetime values are compelled by transition metal atoms, whereas the group velocity spectrum is dictated by chalcogen atoms. Overall, the lattice thermal conductivity is linearly proportional with inverse temperature. |
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000473536400003 |
Publication Date |
2019-07-02 |
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2469-9969; 2469-9950 |
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Additional Links |
UA library record; WoS full record; WoS citing articles |
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no |
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Call Number |
UA @ admin @ c:irua:193764 |
Serial |
8645 |
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Mobaraki, A.; Kandemir, A.; Yapicioglu, H.; Gulseren, O.; Sevik, C. |
![find record details (via OpenURL) openurl](img/xref.gif)
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Title |
Validation of inter-atomic potential for WS2 and WSe2 crystals through assessment of thermal transport properties |
Type |
A1 Journal article |
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Year |
2018 |
Publication |
Computational materials science |
Abbreviated Journal |
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Volume |
144 |
Issue |
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Pages |
92-98 |
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A1 Journal article; Condensed Matter Theory (CMT) |
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Abstract |
In recent years, transition metal dichalcogenides (TMDs) displaying astonishing properties are emerged as a new class of two-dimensional layered materials. The understanding and characterization of thermal transport in these materials are crucial for efficient engineering of 2D TMD materials for applications such as thermoelectric devices or overcoming general overheating issues. In this work, we obtain accurate Stillinger-Weber type empirical potential parameter sets for single-layer WS2 and WSe2 crystals by utilizing particle swarm optimization, a stochastic search algorithm. For both systems, our results are quite consistent with first-principles calculations in terms of bond distances, lattice parameters, elastic constants and vibrational properties. Using the generated potentials, we investigate the effect of temperature on phonon energies and phonon linewidth by employing spectral energy density analysis. We compare the calculated frequency shift with respect to temperature with corresponding experimental data, clearly demonstrating the accuracy of the generated inter-atomic potentials in this study. Also, we evaluate the lattice thermal conductivities of these materials by means of classical molecular dynamics simulations. The predicted thermal properties are in very good agreement with the ones calculated from first-principles. (C) 2017 Elsevier B.V. All rights reserved. |
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000424902300013 |
Publication Date |
2017-12-16 |
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ISSN |
0927-0256 |
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Additional Links |
UA library record; WoS full record; WoS citing articles |
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Open Access |
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no |
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Call Number |
UA @ admin @ c:irua:193774 |
Serial |
8729 |
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Author ![sorted by Author field, descending order (down)](img/sort_desc.gif) |
Mmari, A.G.; Potgieter-Vermaak, S.S.; Uiso, C.B.S.; Makundi, I.N.; Potgieter, J.H.; Van Grieken, R. |
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Corrosive marine atmosphere investigations in Tanzania: exposure sites and preliminary results |
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A3 Journal article |
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2007 |
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Newsletter of the International Global Atmospheric Chemistry Project |
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Issue |
36 |
Pages |
13-18 |
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A3 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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UA library record |
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no |
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Call Number |
UA @ admin @ c:irua:65012 |
Serial |
7739 |
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