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Author | Storme, P.; Fransen, E.; De Wael, K.; Caen, J. | ||||
Title | X-Ray Fluorescence as an analytical tool for studying the copper matrices in the collection of the Museum Plantin-Moretus | Type | A1 Journal article | ||
Year | 2017 | Publication | De gulden passer | Abbreviated Journal | |
Volume | 95 | Issue | 1 | Pages | 7-33 |
Keywords | A1 Journal article; Engineering sciences. Technology; History; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation); Antwerp Cultural Heritage Sciences (ARCHES) | ||||
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Corporate Author | Thesis | ||||
Publisher | Place of Publication | Editor | |||
Language | Wos | Publication Date | |||
Series Editor | Series Title | Abbreviated Series Title | |||
Series Volume | Series Issue | Edition | |||
ISSN | 0777-5067 | ISBN | Additional Links | UA library record | |
Impact Factor | Times cited | Open Access | |||
Notes | Approved | Most recent IF: NA | |||
Call Number | UA @ admin @ c:irua:144111 | Serial | 5913 | ||
Permanent link to this record | |||||
Author | Sandfeld, S.; Samaee, V.; Idrissi, H.; Groten, J.; Pardoen, T.; Schwaiger, R.; Schryvers, D. | ||||
Title | Datasets for the analysis of dislocations at grain boundaries and during vein formation in cyclically deformed Ni micropillars | Type | A1 Journal article | ||
Year | 2019 | Publication | Data in Brief | Abbreviated Journal | |
Volume | 27 | Issue | 27 | Pages | 104724 |
Keywords | A1 Journal article; Engineering sciences. Technology; Electron microscopy for materials research (EMAT) | ||||
Abstract | The dataset together with the corresponding Python scripts and Jupyter notebooks presented in this article are supplementary data for the work presented in Samaee et al., 2019 [1]. The data itself consists of two parts: the simulation data that was used in [1] to analyze the effect of a particular grain boundary on curved dislocations and the precession electron diffraction (PED) strain maps together with post-processed data for analyzing details of the observed dislocation vein structures. Additionally, the complete stress tensor components, which are not shown in [1], have also been included. The data sets are accompanied by Python code explaining the file formats and showing how to post-process the data. (c) 2019 The Author(s). Published by Elsevier Inc. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). | ||||
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Corporate Author | Thesis | ||||
Publisher | Place of Publication | Editor | |||
Language | Wos | 000501988200181 | Publication Date | 2019-11-03 | |
Series Editor | Series Title | Abbreviated Series Title | |||
Series Volume | Series Issue | Edition | |||
ISSN | 2352-3409 | ISBN | Additional Links | UA library record; WoS full record | |
Impact Factor | Times cited | Open Access | |||
Notes | Approved | Most recent IF: NA | |||
Call Number | UA @ admin @ c:irua:165092 | Serial | 6292 | ||
Permanent link to this record | |||||
Author | Tarakanova, E.N.; Tarakanov, P.A.; Simakov, A.O.; Furuyama, T.; Kobayashi, N.; Konev, D.V.; Goncharova, O.A.; Trashin, S.A.; De Wael, K.; Sulimenkov, I.V.; Filatov, V.V.; Kozlovskiy, V.I.; Tomilova, L.G.; Stuzhin, P.A.; Pushkarev, V.E. | ||||
Title | Synthesis and characterization of heteroleptic rare earth double-decker complexes involving tetradiazepinoporphyrazine and phthalocyanine macrocycles | Type | A1 Journal article | ||
Year | 2021 | Publication | Dalton Transactions | Abbreviated Journal | Dalton T |
Volume | 50 | Issue | 18 | Pages | 6245-6255 |
Keywords | A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) | ||||
Abstract | Reaction of (2,3,9,10,16,17,23,24-octabutylphthalocyaninato)lanthanide(iii) acetylacetonates ((Bu)PcLn(acac), 1a-c, Ln = Lu (a), Eu (b), La (c)) with a tetrakis(5,7-bis(4-tert-butylphenyl)-6H-1,4-diazepino)[2,3-b,g,l,q]porphyrazine ligand ((tBuPh)DzPzH(2), 2) produced sandwich compounds ((tBuPh)DzPz)Ln(Pc-Bu) (3a-c), which represent the first heteroleptic double-deckers incorporating both Pc and DzPz decks. A combination of high-resolution mass spectrometry, UV-Vis/NIR, MCD, and H-1 NMR spectroscopy, and square-wave voltammetry provided unambiguous characterization of target complexes 3 indicating that their spectral and electrochemical properties are generally intermediate with respect to their homoleptic relatives. Based on the data of solution-state H-1-H-1 NMR (COSY, NOESY) correlation spectroscopy supported by DFT calculations, a dimerization tendency of compounds 3 proportional to the Ln(iii) ion size was found. The spectroelectrochemical study of 3 and the corresponding homoleptic double-deckers revealed a pronounced tendency to aggregation of the one-electron oxidized forms of DzPz-containing double-decker complexes compared to homoleptic Pc(2)Ln compounds. | ||||
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Corporate Author | Thesis | ||||
Publisher | Place of Publication | Editor | |||
Language | Wos | 000641283000001 | Publication Date | 2021-04-01 | |
Series Editor | Series Title | Abbreviated Series Title | |||
Series Volume | Series Issue | Edition | |||
ISSN | 1477-9226; 1477-9234 | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
Impact Factor | 4.029 | Times cited | Open Access | Not_Open_Access | |
Notes | Approved | Most recent IF: 4.029 | |||
Call Number | UA @ admin @ c:irua:178289 | Serial | 8636 | ||
Permanent link to this record | |||||
Author | Yampolskii, S.V.; Baelus, B.J.; Peeters, F.M.; Kolacek, J. | ||||
Title | Electric charges in superconducting mesoscopic samples | Type | A1 Journal article | ||
Year | 2002 | Publication | Czechoslovak journal of physics T2 – 11th Czech and Slovak Conference on Magnetism (CSMAG 01), AUG 20-23, 2001, KOSICE, SLOVAKIA | Abbreviated Journal | Czech J Phys |
Volume | 52 | Issue | 2 | Pages | 303-306 |
Keywords | A1 Journal article; Condensed Matter Theory (CMT) | ||||
Abstract | The distribution of the electric charge density in mesoscopic superconducting disks and cylinders is studied within the phenomenological Ginzburg-Landau approach. We found that, even in the Meissner state the mesoscopic sample exhibits a non-uniform charge distribution such that a region near the sample edge becomes negatively charged. When vortices are inside the sample there is a superposition of the negative charge located at the vortex core and this Meissner charge, and, as a result, the charge at the sample edge changes sign as a function of the applied magnetic field. | ||||
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Publisher | Place of Publication | Editor | |||
Language | Wos | 000174955600046 | Publication Date | 2002-12-28 | |
Series Editor | Series Title | Abbreviated Series Title | |||
Series Volume | Series Issue | Edition | |||
ISSN | 0011-4626; | ISBN | Additional Links | UA library record; WoS full record | |
Impact Factor | Times cited | Open Access | |||
Notes | Approved | Most recent IF: NA | |||
Call Number | UA @ lucian @ c:irua:103374 | Serial | 880 | ||
Permanent link to this record | |||||
Author | Bals, S.; Van Aert, S.; Van Tendeloo, G. | ||||
Title | High resolution electron tomography | Type | A1 Journal article | ||
Year | 2013 | Publication | Current opinion in solid state and materials science | Abbreviated Journal | Curr Opin Solid St M |
Volume | 17 | Issue | 3 | Pages | 107-114 |
Keywords | A1 Journal article; Electron microscopy for materials research (EMAT) | ||||
Abstract | Reaching atomic resolution in 3D has been the ultimate goal in the field of electron tomography for many years. Significant progress, both on the theoretical as well as the experimental side has recently resulted in several exciting examples demonstrating the ability to visualise atoms in 3D. In this paper, we will review the different steps that have pushed the resolution in 3D to the atomic level. A broad range of methodologies and practical examples together with their impact on materials science will be discussed. Finally, we will provide an outlook and will describe future challenges in the field of high resolution electron tomography. | ||||
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Corporate Author | Thesis | ||||
Publisher | Place of Publication | London | Editor | ||
Language | Wos | 000323869800003 | Publication Date | 2013-03-30 | |
Series Editor | Series Title | Abbreviated Series Title | |||
Series Volume | Series Issue | Edition | |||
ISSN | 1359-0286; | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
Impact Factor | 6.938 | Times cited | 24 | Open Access | |
Notes | Fwo; 312483 Esteem; Countatoms; | Approved | Most recent IF: 6.938; 2013 IF: 7.167 | ||
Call Number | UA @ lucian @ c:irua:109454 | Serial | 1457 | ||
Permanent link to this record | |||||
Author | Idrissi, H.; Carrez, P.; Cordier, P. | ||||
Title | On amorphization as a deformation mechanism under high stresses | Type | A1 Journal article | ||
Year | 2022 | Publication | Current opinion in solid state and materials science | Abbreviated Journal | Curr Opin Solid St M |
Volume | 26 | Issue | 1 | Pages | 100976-17 |
Keywords | A1 Journal article; Electron microscopy for materials research (EMAT) | ||||
Abstract | In this paper we review the work related to amorphization under mechanical stress. Beyond pressure, we highlight the role of deviatoric or shear stresses. We show that the most recent works make amorphization appear as a deformation mechanism in its own right, in particular under extreme conditions (shocks, deformations under high stresses, high strain-rates). | ||||
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Corporate Author | Thesis | ||||
Publisher | Place of Publication | Editor | |||
Language | Wos | 000779433300002 | Publication Date | 2022-01-13 | |
Series Editor | Series Title | Abbreviated Series Title | |||
Series Volume | Series Issue | Edition | |||
ISSN | 1359-0286 | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
Impact Factor | 11 | Times cited | Open Access | OpenAccess | |
Notes | Approved | Most recent IF: 11 | |||
Call Number | UA @ admin @ c:irua:188014 | Serial | 7064 | ||
Permanent link to this record | |||||
Author | Baetens, D.; Schoofs, K.; Somers, N.; Denys, S. | ||||
Title | A brief review on Multiphysics modelling of the various physical and chemical phenomena occurring in active oxidation reactors | Type | A1 Journal article | ||
Year | 2023 | Publication | Current opinion in green and sustainable chemistry | Abbreviated Journal | |
Volume | 40 | Issue | Pages | 100764-100766 | |
Keywords | A1 Journal article; Engineering sciences. Technology; Sustainable Energy, Air and Water Technology (DuEL) | ||||
Abstract | Heterogeneous photocatalysis can be used as an advanced oxidation technology frequently studied for application in photoreactors for air and water treatment. Extensive experimental investigation entails high costs and is also time consuming. Multiphysics modelling, a relatively new numerical method, provides a cost-effective and valuable alternative. By reconstructing the reactor geometry in dedicated software, meshing it and solving for occurring physical and chemical phenomena, Multiphysics models can be used to evaluate the performance of different reactor designs, increase insight into the occurring phenomena and study the influence of operational parameters on reactor performance. Finally, Multiphysics models are also developed for various applications like optimising the operational parameters, creating the ideal reactor design or scaling up a lab-scale reactor to a realistic prototype. | ||||
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Corporate Author | Thesis | ||||
Publisher | Place of Publication | Editor | |||
Language | Wos | 000947344000001 | Publication Date | 2023-02-02 | |
Series Editor | Series Title | Abbreviated Series Title | |||
Series Volume | Series Issue | Edition | |||
ISSN | 2452-2236 | ISBN | Additional Links | UA library record; WoS full record | |
Impact Factor | 9.3 | Times cited | Open Access | OpenAccess | |
Notes | Approved | Most recent IF: 9.3; 2023 IF: NA | |||
Call Number | UA @ admin @ c:irua:195208 | Serial | 7278 | ||
Permanent link to this record | |||||
Author | Perreault, P.; Van Hoecke, L.; Pourfallah, H.; Kummamuru, N.B.; Boruntea, C.-R.; Preuster, P. | ||||
Title | Critical challenges towards the commercial rollouts of a LOHC-based H2 economy | Type | A1 Journal article | ||
Year | 2023 | Publication | Current opinion in green and sustainable chemistry | Abbreviated Journal | |
Volume | 41 | Issue | Pages | 100836-100838 | |
Keywords | A1 Journal article; Engineering sciences. Technology; Sustainable Energy, Air and Water Technology (DuEL) | ||||
Abstract | This short review discusses recent developments related to the storage and release of hydrogen from liquid organic hydrogen carriers (LOHCs). It focusses on three areas of recent literature: the application and development of novel, alternative LOHC systems, process development and process integration in the storage and release of hydrogen from LOHCs, and the electrochemical conversion of LOHCs. For the novel LOHC systems, we briefly focus on reaction enthalpy and storage capacity as main KPIs for the comparison of those systems and discuss the technical availability on a relevant scale. In the field of process- and reactor development our emphasis lies on the power density of the chemical conversion units. The LOHC technology still requires further development to reach the necessary energy efficiency, flexibility and overall research maturity for market competitivity and commercial impact. | ||||
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Corporate Author | Thesis | ||||
Publisher | Place of Publication | Editor | |||
Language | Wos | 001019180100001 | Publication Date | 2023-05-18 | |
Series Editor | Series Title | Abbreviated Series Title | |||
Series Volume | Series Issue | Edition | |||
ISSN | 2452-2236 | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
Impact Factor | 9.3 | Times cited | Open Access | OpenAccess | |
Notes | Approved | Most recent IF: 9.3; 2023 IF: NA | |||
Call Number | UA @ admin @ c:irua:196520 | Serial | 8845 | ||
Permanent link to this record | |||||
Author | Gorbanev, Y.; Fedirchyk, I.; Bogaerts, A. | ||||
Title | Plasma catalysis in ammonia production and decomposition: Use it, or lose it? | Type | A1 Journal Article | ||
Year | 2024 | Publication | Current Opinion in Green and Sustainable Chemistry | Abbreviated Journal | Current Opinion in Green and Sustainable Chemistry |
Volume | 47 | Issue | Pages | 100916 | |
Keywords | A1 Journal Article; Plasma Nitrogen fixation Ammonia Plasma catalysis Production and decomposition; Plasma, laser ablation and surface modeling Antwerp (PLASMANT) ; | ||||
Abstract | The combination of plasma with catalysis for the synthesis and decomposition of NH3 is an attractive route to the production of carbon-neutral fertiliser and energy carriers and its conversion into H2. Recent years have seen fast developments in the field of plasma-catalytic NH3 life cycle. This work summarises the most recent advances in plasma-catalytic and related NH3-focussed processes, identifies some of the most important discoveries, and addresses plausible strategies for future developments in plasma-based NH3 technology. | ||||
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Corporate Author | Thesis | ||||
Publisher | Place of Publication | Editor | |||
Language | Wos | Publication Date | 2024-03-29 | ||
Series Editor | Series Title | Abbreviated Series Title | |||
Series Volume | Series Issue | Edition | |||
ISSN | 2452-2236 | ISBN | Additional Links | ||
Impact Factor | 9.3 | Times cited | Open Access | ||
Notes | The work was supported by the Fund for Scientific Research (FWO) Flanders Bioeconomy project (grant G0G2322N) funded by the European Union-NextGe- nerationEU, the HyPACT project funded by the Belgian Energy Transition Fund, and the MSCA4Ukraine project 1233629 funded by the European Union. | Approved | Most recent IF: 9.3; 2024 IF: NA | ||
Call Number | PLASMANT @ plasmant @ | Serial | 9117 | ||
Permanent link to this record | |||||
Author | Tang, T.; Strokal, M.; van Vliet, M.T.H.; Seuntjens, P.; Burek, P.; Kroeze, C.; Langan, S.; Wada, Y. | ||||
Title | Bridging global, basin and local-scale water quality modeling towards enhancing water quality management worldwide | Type | A1 Journal article | ||
Year | 2019 | Publication | Current Opinion in Environmental Sustainability | Abbreviated Journal | |
Volume | 36 | Issue | Pages | 39-48 | |
Keywords | A1 Journal article; Engineering sciences. Technology; Sustainable Energy, Air and Water Technology (DuEL) | ||||
Abstract | Global water quality (WQ) modeling is an emerging field. In this article, we identify the missing linkages between global and basin/local-scale WQ models, and discuss the possibilities to fill these gaps. We argue that WQ models need stronger linkages across spatial scales. This would help to identify effective scale-specific WQ management options and contribute to future development of global WQ models. Two directions are proposed to improve the linkages: nested multiscale WQ modeling towards enhanced water management, and development of next-generation global WQ models based-on basin/local-scale mechanistic understanding. We highlight the need for better collaboration among WQ modelers and policy-makers in order to deliver responsive water policies and management strategies across scales. | ||||
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Publisher | Place of Publication | Editor | |||
Language | Wos | 000460234600006 | Publication Date | 2018-11-07 | |
Series Editor | Series Title | Abbreviated Series Title | |||
Series Volume | Series Issue | Edition | |||
ISSN | 1877-3435 | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
Impact Factor | Times cited | Open Access | |||
Notes | Approved | no | |||
Call Number | UA @ admin @ c:irua:158643 | Serial | 7568 | ||
Permanent link to this record | |||||
Author | Bottari, F.; Blust, R.; De Wael, K. | ||||
Title | Bio(inspired) strategies for the electro-sensing of β-lactam antibiotics | Type | A1 Journal article | ||
Year | 2018 | Publication | Current opinion in electrochemistry | Abbreviated Journal | |
Volume | 10 | Issue | 10 | Pages | 143-148 |
Keywords | A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) | ||||
Abstract | The dire previsions of the WHO on the so-called “post-antibiotic era” and the continuous and global rise of anti-microbial resistance, spurs our research community to find better ways to fight these threats. In light of this severe threat to human health many attempts have been made to develop efficient methods to detect antibiotic residues in different streams. The use of electrochemistry seems an inviting approach for on-site and fast monitoring. In this critical review, recent developments in the field of (bio) electro-sensing of 19-lactam antibiotics will be presented, with a focus on aptamers and molecularly imprinted polymers, the two main promises of a new generation of biosensors, yet to be fulfilled. | ||||
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Corporate Author | Thesis | ||||
Publisher | Place of Publication | Editor | |||
Language | Wos | 000442800000022 | Publication Date | 2018-05-24 | |
Series Editor | Series Title | Abbreviated Series Title | |||
Series Volume | Series Issue | Edition | |||
ISSN | 2451-9103; 2451-9111 | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles; WoS full record; WoS citing articles | |
Impact Factor | Times cited | 15 | Open Access | ||
Notes | ; This work was financially supported by the University of Antwerp (BOF) and the Research Foundation – Flanders (FWO). ; | Approved | Most recent IF: NA | ||
Call Number | UA @ admin @ c:irua:153744 | Serial | 5488 | ||
Permanent link to this record | |||||
Author | Moro, G.; De Wael, K.; Moretto, L.M. | ||||
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 |
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 | Thesis | ||||
Publisher | Place of Publication | Editor | |||
Language | Wos | 000485814400010 | Publication Date | 2019-04-20 | |
Series Editor | Series Title | Abbreviated Series Title | |||
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 | |||||
Author | Florea, A.; De Jong, M.; De Wael, K. | ||||
Title | Electrochemical strategies for the detection of forensic drugs | Type | A1 Journal article | ||
Year | 2018 | Publication | Current opinion in electrochemistry | Abbreviated Journal | |
Volume | 11 | Issue | 11 | Pages | 34-40 |
Keywords | A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) | ||||
Abstract | Illicit drugs consumption and trafficking is spread worldwide and remains an increasing challenge for local authorities. Forensic drugs and their metabolites are released into wastewaters due to human excretion after illegal consumption of drugs and occasionally due to disposal of clandestine laboratory wastes into sewage systems, being recently classified as the latest group of emerging pollutants. Hence, it is essential to have efficient and accurate methods to detect these type of compounds in seized street samples, biological fluids and wastewaters in order to reduce and prevent trafficking and consumption and negative effects on aquatic systems. Electrochemical strategies offer a fast, portable, low-cost and accurate alternative to chromatographic and spectrometric methods, for the analysis of forensic drugs and metabolites in different matrices. Recent electrochemical strategies applied to the detection of illicit drugs in wastewaters, biological fluids and street samples are presented in this review, together with the impact of drug consumption on the environment. | ||||
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Corporate Author | Thesis | ||||
Publisher | Place of Publication | Editor | |||
Language | Wos | 000453710900007 | Publication Date | 2018-07-21 | |
Series Editor | Series Title | Abbreviated Series Title | |||
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 | 7 | Open Access | ||
Notes | ; This project has received funding from the European Union's Horizon 2020 research and innovation programme under the Marie Sklodowska-Curie Grant Agreement No. 753223 Narcoreader. The authors also acknowledge financial support from BELSPO, IOF-SBO and UAntwerp. ; | Approved | Most recent IF: NA | ||
Call Number | UA @ admin @ c:irua:152366 | Serial | 5597 | ||
Permanent link to this record | |||||
Author | Perreault, P.; Kummamuru, N.B.; Gonzalez Quiroga, A.; Lenaerts, S. | ||||
Title | CO2 capture initiatives : are governments, society, industry and the financial sector ready? | Type | A1 Journal article | ||
Year | 2022 | Publication | Current Opinion in Chemical Engineering | Abbreviated Journal | Curr Opin Chem Eng |
Volume | 38 | Issue | Pages | 100874 | |
Keywords | A1 Journal article; Engineering sciences. Technology; Sustainable Energy, Air and Water Technology (DuEL) | ||||
Abstract | The deployment of CCUS plants does not match the enormous requirements to meet the CO2 emission reductions fixed during the Paris agreement, and we must ask ourselves what is refraining the technology deployment, especially in light of the recent high CO2 prices. Owing to the higher costs than their fossil counterparts, Carbon Capture & Utilization represents a long-term solution. In addition to a gigantic scale-up effort even for the most mature Carbon Capture & Storage (CCS) technologies, various factors are responsible for the slow roll-out of CCS projects. Luckily, the financial sector and governments are playing their role. Support from the public is however key, and an open communication is required to convert social tolerance into social acceptance. | ||||
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Publisher | Place of Publication | Editor | |||
Language | Wos | 000885329800001 | Publication Date | 2022-10-28 | |
Series Editor | Series Title | Abbreviated Series Title | |||
Series Volume | Series Issue | Edition | |||
ISSN | 2211-3398 | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
Impact Factor | 6.6 | Times cited | Open Access | OpenAccess | |
Notes | Approved | Most recent IF: 6.6 | |||
Call Number | UA @ admin @ c:irua:191272 | Serial | 7137 | ||
Permanent link to this record | |||||
Author | Minja, A.C.; Ag, K.R.; Raes, A.; Borah, R.; Verbruggen, S.W. | ||||
Title | Recent progress in developing non-noble metal-based photocathodes for solar green hydrogen production | Type | A1 Journal article | ||
Year | 2024 | Publication | Current Opinion in Chemical Engineering | Abbreviated Journal | |
Volume | 43 | Issue | Pages | 101000 | |
Keywords | A1 Journal article; Engineering sciences. Technology | ||||
Abstract | Photocathodes play a vital role in photoelectrocatalytic water splitting by acting as catalysts for reducing protons to hydrogen gas when exposed to light. Recent advancements in photocathodes have focused on addressing the limitations of noble metal-based materials. These noble metal-based photocathodes rely on expensive and scarce metals such as platinum and gold as cocatalysts or ohmic back contacts, respectively, rendering the final system less sustainable and costly when applied at scale. This mini-review summarizes the important recent progress in the development of non-noble metal-based photocathodes and their performance in the hydrogen evolution reaction during photoelectrochemical (PEC) water splitting. These advancements bring non-noble metal-based photocathodes closer to their noble metal-based counterparts in terms of performance, thereby paving the way forward toward industrial-scale photoelectrolyzers or PEC cells for green hydrogen production. | ||||
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Publisher | Place of Publication | Editor | |||
Language | Wos | 001166826200001 | Publication Date | 2024-01-20 | |
Series Editor | Series Title | Abbreviated Series Title | |||
Series Volume | Series Issue | Edition | |||
ISSN | 2211-3398 | ISBN | Additional Links | UA library record; WoS full record | |
Impact Factor | 6.6 | Times cited | Open Access | Not_Open_Access | |
Notes | Approved | Most recent IF: 6.6; 2024 IF: 3.403 | |||
Call Number | UA @ admin @ c:irua:202625 | Serial | 9080 | ||
Permanent link to this record | |||||
Author | Raes, A.; Minja, A.C.; Ag, K.R.; Verbruggen, S.W. | ||||
Title | Recent advances in metal-doped defective TiO₂ for photocatalytic CO₂ conversion | Type | A1 Journal article | ||
Year | 2024 | Publication | Current Opinion in Chemical Engineering | Abbreviated Journal | |
Volume | 44 | Issue | Pages | 101013-11 | |
Keywords | A1 Journal article; Engineering sciences. Technology | ||||
Abstract | Introducing defects in TiO2-based photocatalytic materials is a promising strategy for improving light-driven CO2 reduction. However, defects such as oxygen vacancies are generally unstable. As a solution and to further enhance the photocatalytic activity, metal doping has been applied. This mini review aims to summarize recent progress in this particular field. Herein, we have classified metal-doped architectures into three different categories: single metal doping, alloy- and co-doping, and doping of morphologically nanoengineered TiO2−x substrates. The direct relationship between specific metals and product selectivity remains complex, as selectivity can vary significantly among seemingly similar materials. However, numerous methods do show promise in fine-tuning selectivity towards either CO or CH4. In terms of photocatalytic turnover, remarkable yields have been reported in isolated reports, but insufficient experimental data and divergent reaction conditions hamper a true comparison. This puts an emphasis on the need for standardized activity testing. | ||||
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Corporate Author | Thesis | ||||
Publisher | Place of Publication | Editor | |||
Language | Wos | Publication Date | 2024-03-16 | ||
Series Editor | Series Title | Abbreviated Series Title | |||
Series Volume | Series Issue | Edition | |||
ISSN | 2211-3398 | ISBN | Additional Links | UA library record | |
Impact Factor | 6.6 | Times cited | Open Access | ||
Notes | Approved | Most recent IF: 6.6; 2024 IF: 3.403 | |||
Call Number | UA @ admin @ c:irua:204462 | Serial | 9221 | ||
Permanent link to this record | |||||
Author | Agrawal, S.; Seuntjens, D.; De Cocker, P.; Lackner, S.; Vlaeminck, S.E. | ||||
Title | Success of mainstream partial nitritation/anammox demands integration of engineering, microbiome and modeling insights | Type | A1 Journal article | ||
Year | 2018 | Publication | Current opinion in biotechnology | Abbreviated Journal | |
Volume | 50 | Issue | Pages | 214-221 | |
Keywords | A1 Journal article; Engineering sciences. Technology; Sustainable Energy, Air and Water Technology (DuEL) | ||||
Abstract | Twenty years ago, mainstream partial nitritation/anammox (PN/A) was conceptually proposed as pivotal for a more sustainable treatment of municipal wastewater. Its economic potential spurred research, yet practice awaits a comprehensive recipe for microbial resource management. Implementing mainstream PN/A requires transferable and operable ways to steer microbial competition as to meet discharge requirements on a year-round basis at satisfactory conversion rates. In essence, the competition for nitrogen, organic carbon and oxygen is grouped into ON/OFF (suppression/promotion) and IN/OUT (wash-out/retention and seeding) strategies, selecting for desirable conversions and microbes. Some insights need mechanistic understanding, while empirical observations suffice elsewhere. The provided methodological R&D framework integrates insights in engineering, microbiome and modeling. Such synergism should catalyze the implementation of energy-positive sewage treatment. | ||||
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Corporate Author | Thesis | ||||
Publisher | Place of Publication | Editor | |||
Language | Wos | 000430903400028 | Publication Date | 2018-02-17 | |
Series Editor | Series Title | Abbreviated Series Title | |||
Series Volume | Series Issue | Edition | |||
ISSN | 0958-1669 | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
Impact Factor | Times cited | Open Access | |||
Notes | Approved | no | |||
Call Number | UA @ admin @ c:irua:149977 | Serial | 8616 | ||
Permanent link to this record | |||||
Author | Pankratova, G.; Bollella, P.; Pankratov, D.; Gorton, L. | ||||
Title | Supercapacitive biofuel cells | Type | A1 Journal article | ||
Year | 2022 | Publication | Current opinion in biotechnology | Abbreviated Journal | |
Volume | 73 | Issue | Pages | 179-187 | |
Keywords | A1 Journal article; Engineering sciences. Technology; Antwerp Electrochemical and Analytical Sciences Lab (A-Sense Lab) | ||||
Abstract | Supercapacitive biofuel cells' (SBFCs) most recent advancements are herein disclosed. In conventional SBFCs the biocomponent is employed as the pseudocapacitive component, while in self-charging biodevices it also works as the biocatalyst. The performance of different types of SBFCs are summarized according to the categorization based on the biocatalyst employed: supercapacitive microbial fuel cells (sMFCs), supercapacitive biophotovoltaics (SBPV) and supercapacitive enzymatic fuel cells (s-EFCs). SBFCs could be considered as promising 'alternative' energy devices (low-cost, environmentally friendly, and technically undemanding electric power sources etc.) being suitable for powering a new generation of miniaturized electronic applications. | ||||
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Corporate Author | Thesis | ||||
Publisher | Place of Publication | Editor | |||
Language | Wos | 000760339100024 | Publication Date | 2021-09-01 | |
Series Editor | Series Title | Abbreviated Series Title | |||
Series Volume | Series Issue | Edition | |||
ISSN | 0958-1669 | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
Impact Factor | Times cited | Open Access | OpenAccess | ||
Notes | Approved | no | |||
Call Number | UA @ admin @ c:irua:187287 | Serial | 8937 | ||
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Author | Khan, A.W.; Jan, F.; Saeed, A.; Zaka-ul-Islam, M.; Abrar, M.; Khattak, N.A.D.; Zakaullah, M. | ||||
Title | Comparative study of electron temperature and excitation temperature in a magnetic pole enhanced-inductively coupled argon plasma | Type | A1 Journal article | ||
Year | 2013 | Publication | Current applied physics | Abbreviated Journal | Curr Appl Phys |
Volume | 13 | Issue | 7 | Pages | 1241-1246 |
Keywords | A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT) | ||||
Abstract | Magnetic Pole Enhanced-Inductively Coupled Plasmas (MaPE-ICPs) in analogy to the conventional ICPs exhibit two modes of operation, depending on the power coupling mechanism, i.e., a low power mode with dominant capacitive coupling (E-mode) and a high power mode with dominant inductive coupling (H-mode). A comparative study of the electron temperature measured by a Langmuir probe (T-e(LP)) and the electron excitation temperature (T-exc(OES)) determined by Optical Emission Spectroscopy (OES) is reported in the two distinct modes of a MaPE-ICP operated in argon. The dependence of T-e(LP), T-exc(OES) and their ratio (T-e(LP)/T-exc(OES)) on applied power (5-50 W) and gas pressure (15-60 mTorr) is explored, and the validity of T-exc(OES) as an alternative diagnostic to T-e(LP) is tested in the two modes of MaPE-ICP. The OES based non-invasive measurement of the plasma parameters such as electron temperature is very useful for plasma processing applications in which probe measurements are limited. (C) 2013 Elsevier B. V. All rights reserved. | ||||
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Corporate Author | Thesis | ||||
Publisher | Place of Publication | Amsterdam | Editor | ||
Language | Wos | 000322631400014 | Publication Date | 2013-04-17 | |
Series Editor | Series Title | Abbreviated Series Title | |||
Series Volume | Series Issue | Edition | |||
ISSN | 1567-1739; | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
Impact Factor | 1.971 | Times cited | 13 | Open Access | |
Notes | Approved | Most recent IF: 1.971; 2013 IF: 2.026 | |||
Call Number | UA @ lucian @ c:irua:110718 | Serial | 421 | ||
Permanent link to this record | |||||
Author | Antipov, E.V.; Khasanova, N.R.; Pshirkov, J.S.; Putilin, S.N.; Bougerol, C.; Lebedev, O.I.; Van Tendeloo, G.; Baranov, A.N.; Park, Y.W. | ||||
Title | The superconducting bismuth-based mixed oxides | Type | A1 Journal article | ||
Year | 2002 | Publication | Current applied physics T2 – QTSM and QFS 02 Symposium, MAY 08-10, 2002, SEOUL, SOUTH KOREA | Abbreviated Journal | Curr Appl Phys |
Volume | 2 | Issue | 5 | Pages | 425-430 |
Keywords | A1 Journal article; Electron microscopy for materials research (EMAT) | ||||
Abstract | The present paper describes the synthesis, characterization of mixed-valence bismuthates with three- or two-dimensional perovskite-like structures and structural criteria that influence superconductivity in these compounds. Single-phase samples of Sr1-xKxBiO3 were prepared for the broad range of K-content: 0.25 less than or equal to x less than or equal to 0.65. For these bismuthates the symmetry of the structure changes from monoclinic to orthorhombic and finally to tetragonal upon increasing the K-content thus resulting in the decrease of the Bi-O distances and reduction of the network distortions. Superconductivity with maximum T-c = 12 K exists in the narrow range (x approximate to 0.5-0.6) within the stability field of the tetragonal phase (0.33 less than or equal to x less than or equal to 0.65), when the three-dimensional octahedral framework has close to the ideal perovskite structure arrangement. The layered type (Ba,K)(3)Bi2O7 and (Ba,K)(2)BiO4 bismuthates belonging to the A(n+1)B(n)O(3n+1) homologous series were investigated. Buckling of the (BiO2) layers in the structure of the n = 2 member occurs due to the ordering of alkaline- and alkaline-earth cations between two independent positions. The formation of the one-layer bismuthate was revealed by Electron Microscopy and XRPD studies. Both types of compounds are considered to be possible candidates for new superconducting materials among bismuthates. (C) 2002 Published by Elsevier Science B.V. | ||||
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Corporate Author | Thesis | ||||
Publisher | Place of Publication | Amsterdam | Editor | ||
Language | Wos | 000179330900015 | Publication Date | 2002-11-04 | |
Series Editor | Series Title | Abbreviated Series Title | |||
Series Volume | Series Issue | Edition | |||
ISSN | 1567-1739; | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
Impact Factor | 1.971 | Times cited | 2 | Open Access | |
Notes | Approved | Most recent IF: 1.971; 2002 IF: NA | |||
Call Number | UA @ lucian @ c:irua:103336 | Serial | 3598 | ||
Permanent link to this record | |||||
Author | Barreca, D.; Gasparotto, A.; Lebedev, O.I.; Maccato, C.; Pozza, A.; Tondello, E.; Turner, S.; Van Tendeloo, G. | ||||
Title | Controlled vapor-phase synthesis of cobalt oxide nanomaterials with tuned composition and spatial organization | Type | A1 Journal article | ||
Year | 2010 | Publication | CrystEngComm | Abbreviated Journal | Crystengcomm |
Volume | 12 | Issue | 7 | Pages | 2185-2197 |
Keywords | A1 Journal article; Electron microscopy for materials research (EMAT) | ||||
Abstract | |||||
Address | |||||
Corporate Author | Thesis | ||||
Publisher | Place of Publication | Editor | |||
Language | Wos | 000279627700040 | Publication Date | 2010-03-10 | |
Series Editor | Series Title | Abbreviated Series Title | |||
Series Volume | Series Issue | Edition | |||
ISSN | 1466-8033; | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
Impact Factor | 3.474 | Times cited | 85 | Open Access | |
Notes | Approved | Most recent IF: 3.474; 2010 IF: 4.006 | |||
Call Number | UA @ lucian @ c:irua:83686 | Serial | 503 | ||
Permanent link to this record | |||||
Author | Eckert, M.; Neyts, E.; Bogaerts, A. | ||||
Title | Modeling adatom surface processes during crystal growth: a new implementation of the Metropolis Monte Carlo algorithm | Type | A1 Journal article | ||
Year | 2009 | Publication | CrystEngComm | Abbreviated Journal | Crystengcomm |
Volume | 11 | Issue | 8 | Pages | 1597-1608 |
Keywords | A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT) | ||||
Abstract | In this paper, a new implementation of the Metropolis Monte Carlo (MMC) algorithm is presented. When combining the MMC model with a molecular dynamics (MD) code, crystal growth by plasma-enhanced chemical vapor deposition can be simulated. As the MD part simulates impacts of growth species onto the surface on a time scale of picoseconds, the MMC algorithm simulates the slower adatom surface processes. The implementation includes a criterion for the selection of atoms that are allowed to be displaced during the simulation, and a criterion of after how many MMC cycles the simulation is stopped. We performed combined MD-MMC simulations for hydrocarbon species that are important for the growth of ultrananocrystalline diamond (UNCD) films at partially hydrogenated diamond surfaces, since this implementation is part of a study of the growth mechanisms of (ultra)nanocrystalline diamond films. Exemplary for adatom arrangements during the growth of UNCD, the adatom surface behavior of C and C2H2 at diamond (111)1 × 1, C and C4H2 at diamond (111)1 × 1 and C3 at diamond (100)2 × 1 has been investigated. For all cases, the diamond crystal structure is pursued under the influence of MMC simulation. Additional longer time-scale MD simulations put forward very similar structures, verifying the MMC algorithm. Nevertheless, the MMC simulation time is typically one order of magnitude shorter than the MD simulation time. | ||||
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Corporate Author | Thesis | ||||
Publisher | Place of Publication | Editor | |||
Language | Wos | 000268184300021 | Publication Date | 2009-04-07 | |
Series Editor | Series Title | Abbreviated Series Title | |||
Series Volume | Series Issue | Edition | |||
ISSN | 1466-8033; | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
Impact Factor | 3.474 | Times cited | 15 | Open Access | |
Notes | Approved | Most recent IF: 3.474; 2009 IF: 4.183 | |||
Call Number | UA @ lucian @ c:irua:77374 | Serial | 2106 | ||
Permanent link to this record | |||||
Author | Barreca, D.; Carraro, G.; Warwick, M.E.A.; Kaunisto, K.; Gasparotto, A.; Gombac, V.; Sada, C.; Turner, S.; Van Tendeloo, G.; Maccato, C.; Fornasiero, P.; | ||||
Title | Fe2O3-TiO2 nanosystems by a hybrid PE-CVD/ALD approach : controllable synthesis, growth mechanism, and photocatalytic properties | Type | A1 Journal article | ||
Year | 2015 | Publication | CrystEngComm | Abbreviated Journal | Crystengcomm |
Volume | 17 | Issue | 17 | Pages | 6219-6226 |
Keywords | A1 Journal article; Electron microscopy for materials research (EMAT) | ||||
Abstract | Supported Fe2O3–TiO2 nanocomposites are fabricated by an original vapor phase synthetic strategy, consisting of the initial growth of Fe2O3 nanosystems on fluorine-doped tin oxide substrates by plasma enhanced-chemical vapor deposition, followed by atomic layer deposition of TiO2 overlayers with variable thickness, and final thermal treatment in air. A thorough characterization of the target systems is carried out by X-ray diffraction, atomic force microscopy, field emission-scanning electron microscopy, energy dispersive X-ray spectroscopy, transmission electron microscopy, and X-ray photoelectron spectroscopy. High purity nanomaterials characterized by the co-presence of Fe2O3 (hematite) and TiO2 (anatase), with an intimate Fe2O3–TiO2 contact, are successfully obtained. In addition, photocatalytic tests demonstrate that, whereas both single-phase oxides do not show appreciable activity, the composite systems are able to degrade methyl orange aqueous solutions under simulated solar light, and even visible light, with an efficiency directly dependent on TiO2 overlayer thickness. This finding opens attractive perspectives for eventual applications in wastewater treatment. | ||||
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Corporate Author | Thesis | ||||
Publisher | Place of Publication | Editor | |||
Language | Wos | 000358915300018 | Publication Date | 2015-07-23 | |
Series Editor | Series Title | Abbreviated Series Title | |||
Series Volume | Series Issue | Edition | |||
ISSN | 1466-8033; | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
Impact Factor | 3.474 | Times cited | 25 | Open Access | |
Notes | The research leading to these results has received funding from the FP7 project “SOLAROGENIX” IJNMP4-SL-2012- 310333), as well as from Padova University ex-60% 2012–2015 projects, grant no. CPDR132937/13 (SOLLEONE), and Regione Lombardia-INSTM ATLANTE projects. S. T. acknowledges the FWO Flanders for a post-doctoral scholarship. Thanks are also due to Prof. S. Mathur and Dr. Y. Gönüllü (Department of Chemistry, Cologne University, Germany) for their precious help and assistance in ALD depositions, and to Prof. E. Bontempi (Chemistry for Technologies Laboratory, Brescia University, Italy) for XRD analyses. | Approved | Most recent IF: 3.474; 2015 IF: 4.034 | ||
Call Number | c:irua:127237 | Serial | 3531 | ||
Permanent link to this record | |||||
Author | Mourdikoudis, S.; Altantzis, T.; Liz-Marzan, L.M.; Bals, S.; Pastoriza-Santos, I.; Perez-Juste, J. | ||||
Title | Hydrophilic Pt nanoflowers: synthesis, crystallographic analysis and catalytic performance | Type | A1 Journal article | ||
Year | 2016 | Publication | CrystEngComm | Abbreviated Journal | Crystengcomm |
Volume | 18 | Issue | 18 | Pages | 3422-3427 |
Keywords | A1 Journal article; Electron microscopy for materials research (EMAT) | ||||
Abstract | Water-soluble Pt nanoflowers (NFs) were prepared by a diethylene glycol-mediated reduction of Pt acetylacetonate (Pt(acac)2) in the presence of polyethyleneimine. Advanced electron microscopy analysis showed that NFs consist of multiple branches with truncated cubic morphology and different crystallographic orientations. We demonstrate that the nature of the solvent strongly influences the resulting morphology. The catalytic performance of Pt NFs in 4–nitrophenol reduction was found to be superior to that of other nanoparticle-based catalysts. Additionally, Pt NFs display good catalytic reusability with no loss of activity after five consecutive cycles. |
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Corporate Author | Thesis | ||||
Publisher | Place of Publication | Editor | |||
Language | Wos | 000375697800012 | Publication Date | 2016-04-12 | |
Series Editor | Series Title | Abbreviated Series Title | |||
Series Volume | Series Issue | Edition | |||
ISSN | 1466-8033 | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
Impact Factor | 3.474 | Times cited | 30 | Open Access | OpenAccess |
Notes | The authors would like to thank J. Millos for the XRD experiments and R. Lomba for ICP-OES elemental analysis measurements at the CACTI institute in Vigo. S. Rodal-Cedeira is acknowledged for the FTIR measurement. This research project was implemented within the framework of the Action «Supporting Postdoctoral Researchers» of the Operational Program “Education and Lifelong Learning” (Action’s Beneficiary: General Secretariat for Research and Technology of Greece) and is co-financed by the European Social Fund (ESF) and the Greek State [project code PE4(1546)]. This work has been also supported by the Spanish MINECO (grant MAT2013-45168-R) and by the Xunta de Galicia/FEDER (Grant No. GPC2013-006; INBIOMED/FEDER “Unha maneira de facer Europa”). S.B. acknowledges funding from the European Research Council under the Seventh Framework Program (FP7), ERC Grant No. 335078 COLOURATOMS.; ECAS_Sara; (ROMEO:yellow; preprint:; postprint:restricted ; pdfversion:cannot); | Approved | Most recent IF: 3.474 | ||
Call Number | c:irua:133670 | Serial | 4067 | ||
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Author | Mazzeo, P.P.; Canossa, S.; Carraro, C.; Pelagatti, P.; Bacchi, A. | ||||
Title | Systematic coformer contribution to cocrystal stabilization: energy and packing trends | Type | A1 Journal article | ||
Year | 2020 | Publication | Crystengcomm | Abbreviated Journal | Crystengcomm |
Volume | 22 | Issue | 43 | Pages | 7341-7349 |
Keywords | A1 Journal article; Electron microscopy for materials research (EMAT) | ||||
Abstract | Polycyclic aromatic compounds such as acridine and phenazine are popular molecular partners used in cocrystal synthesis. The intermolecular interactions occurring between coformers and their molecular partners dominate the cocrystal packing energy, but coformer self-interactions might participate with a constant non-negligible contribution to the overall packing energy stabilization. Two new acridine-based cocrystals have been mechanochemically synthesized, then fully characterized<italic>via</italic>DSC and SCXRD analyses. A statistical analysis in the CSD has been performed to evaluate the recurrent π–π stacking orientation of polycyclic coformers in all deposited acridine-based cocrystals, then extended to phenazine-base analogs. Packing energy calculations were performed on a selected cocrystal subset to quantify the contribution of the π–π interaction to the overall stabilization energy. | ||||
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Corporate Author | Thesis | ||||
Publisher | Place of Publication | Editor | |||
Language | Wos | 000589506600017 | Publication Date | 2020-03-26 | |
Series Editor | Series Title | Abbreviated Series Title | |||
Series Volume | Series Issue | Edition | |||
ISSN | 1466-8033 | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
Impact Factor | 3.1 | Times cited | Open Access | OpenAccess | |
Notes | European Cooperation in Science and Technology, CA18112 ; Ministero delle Politiche Agricole Alimentari e Forestali, PAC/Packaging Attivo Cristallino ; | Approved | Most recent IF: 3.1; 2020 IF: 3.474 | ||
Call Number | EMAT @ emat @c:irua:174262 | Serial | 6661 | ||
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Author | Morozov, V.A.; Posokhova, S.M.; Deyneko, D., V; Savina, A.A.; Morozov, A., V; Tyablikov, O.A.; Redkin, B.S.; Spassky, D.A.; Hadermann, J.; Lazoryak, B., I | ||||
Title | Influence of annealing conditions on the structure and luminescence properties of KGd1-xEux(MoO4)2(0\leq x\leq1) | Type | A1 Journal article | ||
Year | 2019 | Publication | CrystEngComm | Abbreviated Journal | Crystengcomm |
Volume | 21 | Issue | 42 | Pages | 6460-6471 |
Keywords | A1 Journal article; Electron microscopy for materials research (EMAT) | ||||
Abstract | This study describes the influence of annealing temperature on the structure and luminescence properties of KGd1-xEux(MoO4)(2) (0 <= x <= 1). Compounds with the general formula (A ', A '')(n)[(W, Mo)O-4](m) are investigated as luminescent materials for photonic applications such as phosphor-converted LEDs (light-emitting diodes). Herein, the KGd0.8Eu0.2(MoO4)(2) light-rose crystal was grown by the Czochralski technique. Moreover, three polymorphs of KGd1-xEux(MoO4)(2) were present in the 923-1223 K range of annealing temperatures under ambient pressure: a triclinic alpha-phase, a disproportionately modulated monoclinic beta-phase and an orthorhombic gamma-phase with a KY(MoO4)(2)-type structure. The different behaviors of KGd(MoO4)(2) and KEu(MoO4)(2) were revealed by DSC studies. The number and the character of phase transitions for KGd1-xEux(MoO4)(2) depended on the elemental composition. The formation of a continuous range of solid solutions with the triclinic alpha-KEu(MoO4)(2)-type structure and ordering of K+ and Eu3+/Gd3+ cations were observed only for alpha-KGd1-xEux(MoO4)(2) (0 <= x <= 1) prepared at 923 K. The structures of gamma-KGd1-xEux(MoO4)(2) (x = 0 and 0.2) were studied using electron diffraction and refined using the powder X-ray diffraction data. The luminescence properties of KGd1-xEux(MoO4)(2) prepared at different annealing temperatures were studied and related to their different structures. The maxima of the D-5(0) -> F-7(2) integral emission intensities were found under excitation at lambda(ex) = 300 nm and lambda(ex) = 395 nm for triclinic scheelite-type alpha-KGd0.6Eu0.4(MoO4)(2) and monoclinic scheelite-type beta-KGd0.4Eu0.6(MoO4)(2) prepared at 1173 K, respectively. The latter shows the brightest red light emission among the KGd1-xEux(MoO4)(2) phosphors. The maximum and integral emission intensity of beta-KGd0.4Eu0.6(MoO4)(2) in the D-5(0) -> F-7(2) transition region is similar to 20% higher than that of the commercially used red phosphor Gd2O2S:Eu3+. Thus, beta-KGd0.4Eu0.6(MoO4)(2) is very attractive for application as a near-UV convertible red-emitting phosphor for LEDs. | ||||
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Corporate Author | Thesis | ||||
Publisher | Place of Publication | Editor | |||
Language | Wos | 000493072200015 | Publication Date | 2019-09-20 | |
Series Editor | Series Title | Abbreviated Series Title | |||
Series Volume | Series Issue | Edition | |||
ISSN | 1466-8033 | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
Impact Factor | 3.474 | Times cited | Open Access | ||
Notes | Approved | Most recent IF: 3.474 | |||
Call Number | UA @ admin @ c:irua:164603 | Serial | 6304 | ||
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Author | Posokhova, S.M.M.; Morozov, V.A.; Deyneko, D.V.V.; Redkin, B.S.S.; Spassky, D.A.A.; Nagirnyi, V.; Belik, A.A.A.; Hadermann, J.; Pavlova, E.T.T.; Lazoryak, B.I.I. | ||||
Title | K₅Eu(MoO₄)₄ red phosphor for solid state lighting applications, prepared by different techniques | Type | A1 Journal article | ||
Year | 2023 | Publication | CrystEngComm | Abbreviated Journal | Crystengcomm |
Volume | 25 | Issue | 5 | Pages | 835-847 |
Keywords | A1 Journal article; Electron microscopy for materials research (EMAT) | ||||
Abstract | The influence of preparation techniques on the structure and luminescent properties of K5Eu(MoO4)(4) (KEMO) was investigated. KEMO phosphors were synthesized by three different techniques: solid state and sol-gel (sg) methods as well as the Czochralski (CZ) crystal growth technique. Laboratory powder X-ray diffraction (PXRD) studies revealed that all KEMO samples had a structure analogous to that of other high temperature alpha-K5R(MoO4)(4) palmierite-type phases (space group (SG) R3m). Contrary to laboratory PXRD data, electron diffraction revealed that the KEMO crystal grown by the CZ technique had a (3 + 1)D incommensurately modulated structure (super space group (SSG) C2/m(0 beta 0)00) with the modulation vector q = 0.689b*. A detailed analysis of electron diffraction patterns has shown formation of three twin domains rotated along the c axis of the R-subcell at 60 degrees with respect to each other. Synchrotron XRD patterns showed additional ultra-wide reflexes in addition to reflections of the R-subcell of the palmierite. However, the insufficient number of reflections, their low intensity and large width in the synchrotron X-ray diffraction patterns made it impossible to refine the structure as incommensurately modulated C2/m(0 beta 0)00. An average structure was refined in the C2/m space group with random distribution of K1 and Eu1 in [M1A(2)O(8)]-layers of the palmierite-type structure. The dependence of luminescent properties on utilized synthesis techniques was studied. The emission spectra of all samples exhibit intense red emission originating from the D-5(0) -> F-7(2) Eu3+ transition. The integrated intensity of the emission from the Eu3+ 5D0 term was found to be the highest in the crystal grown by the CZ technique. The quantum yield measured for KEMO crystals demonstrates a very high value of 66.5%. This fact confirms that KEMO crystals are exceptionally attractive for applications as a near-UV converting red phosphor for LEDs. | ||||
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Publisher | Place of Publication | Editor | |||
Language | Wos | 000912021300001 | Publication Date | 2023-01-06 | |
Series Editor | Series Title | Abbreviated Series Title | |||
Series Volume | Series Issue | Edition | |||
ISSN | 1466-8033 | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
Impact Factor | 3.1 | Times cited | Open Access | Not_Open_Access | |
Notes | Approved | Most recent IF: 3.1; 2023 IF: 3.474 | |||
Call Number | UA @ admin @ c:irua:194320 | Serial | 7317 | ||
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Author | Canossa, S.; Graiff, C.; Crocco, D.; Predieri, G. | ||||
Title | Water structures and packing efficiency in methylene blue cyanometallate salts | Type | A1 Journal article | ||
Year | 2020 | Publication | Crystals | Abbreviated Journal | Crystals |
Volume | 10 | Issue | 7 | Pages | 558 |
Keywords | A1 Journal article; Electron microscopy for materials research (EMAT) | ||||
Abstract | Crystal structure prediction is the holy grail of crystal engineering and is key to its ambition of driving the formation of solids based on the selection of their molecular constituents. However, this noble quest is hampered by the limited predictability of the incorporation of solvent molecules, first and foremost the ubiquitous water. In this context, we herein report the structure of four methylene blue cyanometallate phases, where anions with various shapes and charges influence the packing motif and lead to the formation of differently hydrated structures. Importantly, water molecules are observed to play various roles as isolated fillings, dimers, or an infinite network with up to 13 water molecules per repeating unit. Each crystal structure has been determined by single-crystal X-ray diffraction and evaluated with the aid of Hirshfeld surface analysis, focussing on the role of water molecules and the hierarchy of different classes of interactions in the overall supramolecular landscape of the crystals. Finally, the collected pieces of evidence are matched together to highlight the leading role of MB stacking and to derive an explanation for the observed hydration diversity based on the structural role of water molecules in the crystal architecture. | ||||
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Corporate Author | Thesis | ||||
Publisher | Place of Publication | Editor | |||
Language | Wos | 000554226900001 | Publication Date | 2020-07-01 | |
Series Editor | Series Title | Abbreviated Series Title | |||
Series Volume | Series Issue | Edition | |||
ISSN | 2073-4352 | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
Impact Factor | 1.566 | Times cited | Open Access | OpenAccess | |
Notes | ; The Elettra Synchrotron (CNR Trieste) is gratefully acknowledged for the beamtime allocated at the beamline XRD1 (proposal nr 20175216). S.C. acknowledges the Research Foundation Flanders (FWO) for supporting his research (grant nr. 12ZV120N). ; | Approved | Most recent IF: NA | ||
Call Number | UA @ admin @ c:irua:171279 | Serial | 6653 | ||
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Author | Volkov, V.V.; van Heurck, C.; van Landuyt, J.; Amelinckx, S.; Zhukov, E.G.; Polulyak, E.S.; Novotortsev, V.M. | ||||
Title | Electron microscopy and X-ray study of the growth of FeCr2S4 spinel single crystals by chemical vapour transport | Type | A1 Journal article | ||
Year | 1993 | Publication | Crystal research and technology | Abbreviated Journal | Cryst Res Technol |
Volume | 28 | Issue | 8 | Pages | 1051-1061 |
Keywords | A1 Journal article; Electron microscopy for materials research (EMAT) | ||||
Abstract | The growth features of FeCr2S4 spinel single crystals prepared by chemical vapour transport were studied by means of scanning electron microscopy, transmission electron microscopy, high resolution electron microscopy, electron diffraction and X-ray analysis. Our results indicate that the epitaxial growth of the new phases FeCr7S12 and FeCr8S12, both based on the NiAs structure, can essentially inhibit the growth of large FeCr2S4 spinel single crystals in the octahedral habit. The new phases are fully characterised and the effects of defect ordering in these new phases are also reported. | ||||
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Corporate Author | Thesis | ||||
Publisher | Place of Publication | Berlin | Editor | ||
Language | Wos | A1993MN86700003 | Publication Date | 2007-01-13 | |
Series Editor | Series Title | Abbreviated Series Title | |||
Series Volume | Series Issue | Edition | |||
ISSN | 0232-1300;1521-4079; | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
Impact Factor | 0.935 | Times cited | 1 | Open Access | |
Notes | Approved | no | |||
Call Number | UA @ lucian @ c:irua:6788 | Serial | 952 | ||
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Author | Mattauch, S.; Heger, G.; Michel, K.H. | ||||
Title | High resolution neutron and X-ray diffraction studies as a function of temperature and electric field of the ferroelectric phase transition of RDP | Type | A1 Journal article | ||
Year | 2004 | Publication | Crystal research and technology | Abbreviated Journal | Cryst Res Technol |
Volume | 39 | Issue | 12 | Pages | 1027-1054 |
Keywords | A1 Journal article; Condensed Matter Theory (CMT) | ||||
Abstract | Neutron and high resolution X-ray diffraction investigations on perfect single crystals of RbH2PO4 (RDP), a hydrogen bonded ferroelectric of KDP type are reported. The results of crystal structure analysis from diffraction data, below and above the paraelectric – ferroelectric phase transition, support a disorder – order character Of [PO4H2](-)-groups. The tetragonal symmetry of the paraelectric phase with the double well potential of the hydrogen atoms obtained by diffraction, results simply from a time-space average of orthorhombic symmetry. According to the group – subgroup relation between the tetragonal space group 142d and the orthorhombic Fdd2 a short range order of ferroelectric clusters in the tetragonal phase is observed. With decreasing temperature the ferroelectric clusters increase and the long range interaction between their local polarisation vectors leads to the formation of lamellar ferroelectric domains with alternating polarisation directions at T-C = 147 K. From the high resolution X-ray data it is concluded that below T-C the ferroelastic strain in the (a,b)-plane leads to micro-angle grain boundaries at the domain walls. The tilt angle is enhanced by an applied electric field parallel to the ferroelectric axis. The resulting dislocations at the domain walls persist in the paraelectric phase leading to a memory effect for the arrangement of twin lamellae. With increased electric field the phase transition temperature T-C is decreased. | ||||
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Corporate Author | Thesis | ||||
Publisher | Place of Publication | Berlin | Editor | ||
Language | Wos | 000225681100001 | Publication Date | 2004-11-12 | |
Series Editor | Series Title | Abbreviated Series Title | |||
Series Volume | Series Issue | Edition | |||
ISSN | 0232-1300;1521-4079; | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
Impact Factor | 1 | Times cited | 12 | Open Access | |
Notes | Approved | Most recent IF: 1; 2004 IF: 0.770 | |||
Call Number | UA @ lucian @ c:irua:94785 | Serial | 1459 | ||
Permanent link to this record |