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Author	Batuk, D.; Tsirlin, A.A.; Filimonov, D.S.; Zakharov, K.V.; Volkova, O.S.; Vasiliev, A.; Hadermann, J.; Abakumov, A.M.
Title	Bi(3n+1)Ti7Fe(3n-3)O(9n+11) Homologous Series: Slicing Perovskite Structure with Planar Interfaces Containing Anatase-like Chains			Type	A1 Journal article
Year	2016	Publication	Inorganic chemistry	Abbreviated Journal	Inorg Chem
Volume	55	Issue	55	Pages	1245-1257
Keywords	A1 Journal article; Electron microscopy for materials research (EMAT)
Abstract	The n = 3-6 members of a new perovskite-based homologous series Bi(3n+1)Ti7Fe(3n-3)O(9n+11) are reported. The crystal structure of the n = 3 Bi10Ti7Fe6O38 member is refined using a combination of X-ray and neutron powder diffraction data (a = 11.8511(2) A, b = 3.85076(4) A, c = 33.0722(6) A, S.G. Immm), unveiling the partially ordered distribution of Ti(4+) and Fe(3+) cations and indicating the presence of static random displacements of the Bi and O atoms. All Bi(3n+1)Ti7Fe(3n-3)O(9n+11) structures are composed of perovskite blocks separated by translational interfaces parallel to the (001)p perovskite planes. The thickness of the perovskite blocks increases with n, while the atomic arrangement at the interfaces remains the same. The interfaces comprise chains of double edge-sharing (Fe,Ti)O6 octahedra connected to the octahedra of the perovskite blocks by sharing edges and corners. This configuration shifts the adjacent perovskite blocks relative to each other over a vector (1/2)[110]p and creates S-shaped tunnels along the [010] direction. The tunnels accommodate double columns of the Bi(3+) cations, which stabilize the interfaces owing to the stereochemical activity of their lone electron pairs. The Bi(3n+1)Ti7Fe(3n-3)O(9n+11) structures can be formally considered either as intergrowths of perovskite modules and polysynthetically twinned modules of the Bi2Ti4O11 structure or as intergrowths of the 2D perovskite and 1D anatase fragments. Transmission electron microscopy (TEM) on Bi10Ti7Fe6O38 reveals that static atomic displacements of Bi and O inside the perovskite blocks are not completely random; they are cooperative, yet only short-range ordered. According to TEM, the interfaces can be laterally shifted with respect to each other over +/-1/3a, introducing an additional degree of disorder. Bi10Ti7Fe6O38 is paramagnetic in the 1.5-1000 K temperature range due to dilution of the magnetic Fe(3+) cations with nonmagnetic Ti(4+). The n = 3, 4 compounds demonstrate a high dielectric constant of 70-165 at room temperature.
Address	Center for Electrochemical Energy Storage, Skolkovo Institute of Science and Technology , Nobelya str. 3, 143026 Moscow, Russia
Corporate Author				Thesis
Publisher		Place of Publication		Editor
Language	English	Wos	000369356800031	Publication Date	2016-01-09
Series Editor		Series Title		Abbreviated Series Title
Series Volume		Series Issue		Edition
ISSN	0020-1669	ISBN		Additional Links	UA library record; WoS full record; WoS citing articles
Impact Factor	4.857	Times cited	3	Open Access
Notes	We are grateful to the Laboratory for Neutron Scattering and Imaging of Paul Scherrer Institut (LNS PSI, Villigen, Switzerland) for granting beam time at the HRPT diffrac- tometer and to Dr. Denis Sheptyakov for the technical support during the experiment. We are also grateful to Valery Verchenko for his help with magnetization measurements. The work has been supported by the Russian Science Foundation (grant 14-13-00680). A.A.T. was partly supported by the Federal Ministry for Education and Science through a Sofja Kovalevskaya Award of Alexander von Humboldt Foundation.			Approved	Most recent IF: 4.857
Call Number	c:irua:132247			Serial	4073
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Author	Pimenta, V.; Sathiya, M.; Batuk, D.; Abakumov, A.M.; Giaume, D.; Cassaignon, S.; Larcher, D.; Tarascon, J.-M.
Title	Synthesis of Li-Rich NMC : a comprehensive study			Type	A1 Journal article
Year	2017	Publication	Chemistry of materials	Abbreviated Journal	Chem Mater
Volume	29	Issue	23	Pages	9923-9936
Keywords	A1 Journal article; Electron microscopy for materials research (EMAT)
Abstract	<script type='text/javascript'>document.write(unpmarked('Li-rich NMC are considered nowadays as one of the most promising candidates for high energy density cathodes. One significant challenge is nested in adjusting their synthesis conditions to reach optimum electrochemical performance, but no consensus has been reached yet on the ideal synthesis protocol. Herein, we revisited the elaboration of Li-rich NMC electrodes by focusing on the science involved through each synthesis steps using carbonate Ni0.1625Mn0.675Co0.1625CO3 precursor coprecipitation combined with solid state synthesis. We demonstrated the effect of precursors concentration on the kinetics of the precipitation reaction and provided clues to obtain spherically agglomerated NMC carbonates of different sizes. Moreover, we highlighted the strong impact of the Li2CO3/NMC carbonate ratio on the morphology and particles size of Li-rich NMC and subsequently on their electrochemical performance. Ratio of 1.35 was found to reproducibly give the best performance with namely a first discharge capacity of 269 mAh g(-1) and capacity retention of 89.6% after 100 cycles. We hope that our results, which reveal how particle size, morphology, and phase composition affect the materials electrochemical performance, will help in reconciling literature data while providing valuable fundamental information for up scaling approaches.'));
Address
Corporate Author				Thesis
Publisher	American Chemical Society	Place of Publication	Washington, D.C	Editor
Language		Wos	000418206600010	Publication Date	2017-11-08
Series Editor		Series Title		Abbreviated Series Title
Series Volume		Series Issue		Edition
ISSN	0897-4756	ISBN		Additional Links	UA library record; WoS full record; WoS citing articles
Impact Factor	9.466	Times cited	23	Open Access	Not_Open_Access
Notes	; The authors acknowledge the French Research Network on Electrochemical Energy Storage (RS2E). V.P and J.-M.T. acknowledges funding from the European Research Council (ERC) (FP/2014)/ERC Grant-Project 670116-ARPEMA. The authors are thankful to Dr. G. Rousse for the help on Rietveld refinements. ;			Approved	Most recent IF: 9.466
Call Number	UA @ lucian @ c:irua:148530			Serial	4899
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Author	Morozov, V.A.; Batuk, D.; Batuk, M.; Basovich, O.M.; Khaikina, E.G.; Deyneko, D.V.; Lazoryak, B.I.; Leonidov, I.I.; Abakumov, A.M.; Hadermann, J.
Title	Luminescence Property Upgrading via the Structure and Cation Changing in Ag_xEu_(2–x)/3WO₄and Ag_xGd_{(2–x)/3–0.3}Eu_0.3WO₄			Type	A1 Journal article
Year	2017	Publication	Chemistry of materials	Abbreviated Journal	Chem Mater
Volume	29	Issue	20	Pages	8811-8823
Keywords	A1 Journal article; Electron microscopy for materials research (EMAT)
Abstract	The creation and ordering of A-cation vacancies and the effect of cation substitutions in the scheelite-type framework are investigated as a factor for controlling the scheelite-type structure and luminescence properties. AgxEu3+(2−x)/3□(1−2x)/3WO4 and AgxGd(2−x)/3−0.3Eu3+0.3□(1−2x)/3WO4 (x = 0.5−0) scheelite-type phases were synthesized by a solid state method, and their structures were investigated using a combination of transmission electron microscopy techniques and powder synchrotron X-ray diffraction. Transmission electron microscopy also revealed the (3 + 1)D incommensurately modulated character of AgxEu3+(2−x)/3□(1−2x)/3WO4 (x = 0.286, 0.2) phases. The crystal structures of the scheelite-based AgxEu3+(2−x)/3□(1−2x)/3WO4 (x = 0.5, 0.286, 0.2) red phosphors have been refined from high resolution synchrotron powder X-ray diffraction data. The luminescence properties of all phases under near-ultraviolet (n-UV) light have been investigated. The excitation spectra of AgxEu3+(2−x)/3□(1−2x)/3WO4 (x = 0.5, 0.286,0.2) phosphors show the strongest absorption at 395 nm, which matches well with the commercially available n-UV-emitting GaN-based LED chip. The excitation spectra of the Eu2/3□1/3WO4 and Gd0.367Eu0.30□1/3WO4 phases exhibit the highest contribution of the charge transfer band at 250 nm and thus the most efficient energy transfer mechanism between the host and the luminescent ion as compared to direct excitation. The emission spectra of all samples indicate an intense red emission due to the 5D0 → 7F2 transition of Eu3+. Concentration dependence of the 5D0 → 7F2 emission for AgxEu(2−x)/3□(1−2x)/3WO4 samples differs from the same dependence for the earlier studied NaxEu3+(2−x)/3□(1−2x)/3MoO4 (0 ≤ x ≤ 0.5) phases. The intensity of the 5D0 → 7F2 emission is reduced almost 7 times with decreasing x from 0.5 to 0, but it practically does not change in the range from x = 0.286 to x = 0.200. The emission spectra of Gd-containing samples show a completely different trend as compared to only Eu-containing samples. The Eu3+ emission under excitation of Eu3+(5L6) level (λex = 395 nm) increases more than 2.5 times with the increasing Gd3+ concentration from 0.2 (x = 0.5) to 0.3 (x = 0.2) in the AgxGd(2−x)/3−0.3Eu3+0.3□(1−2x)/3WO4, after which it remains almost constant for higher Gd3+ concentrations.
Address
Corporate Author				Thesis
Publisher		Place of Publication		Editor
Language		Wos	000413884900028	Publication Date	2017-10-24
Series Editor		Series Title		Abbreviated Series Title
Series Volume		Series Issue		Edition
ISSN	0897-4756	ISBN		Additional Links	UA library record; WoS full record; WoS citing articles
Impact Factor	9.466	Times cited	7	Open Access	Not_Open_Access
Notes	This research was supported by FWO (project G039211N), Flanders Research Foundation. V.A.M. is grateful for financial support of the Russian Foundation for Basic Research (Grant 15-03-07741). E.G.K. and O.M.B. are grateful for financial support of the Russian Foundation for Basic Research (Grants 13-03-01020 and 16-03-00510). D.V.D. is grateful for financial support of the Russian Foundation for Basic Research (Grant 16-33-00197) and the Foundation of the President of the Russian Federation (Grant MK-7926.2016.5.). We are grateful to the ESRF for granting the beamtime. Experimental support of Andy Fitch at the ID31 beamline of ESRF is kindly acknowledged.			Approved	Most recent IF: 9.466
Call Number	EMAT @ emat @c:irua:147241			Serial	4768
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Author	Charkin, D.O.; Plokhikh, I.V.; Kazakov, S.M.; Kalmykov, S.N.; Akinfiev, V.S.; Gorbachev, A.V.; Batuk, M.; Abakumov, A.M.; Teterin, Y.A.; Maslakov, K.I.; Teterin, A.Y.; Ivanov, K.E.
Title	Synthesis and structural characterization of a novel Sillén – Aurivillius bismuth oxyhalide, PbBi3VO7.5Cl, and its derivatives			Type	A1 Journal article
Year	2018	Publication	Solid state sciences	Abbreviated Journal	Solid State Sci
Volume	75	Issue		Pages	27-33
Keywords	A1 Journal article; Electron microscopy for materials research (EMAT)
Abstract	A new Sillen – Aurivillius family of layered bismuth oxyhalides has been designed and successfully constructed on the basis of PbBiO2X(X = halogen) synthetic perites and g-form of Bi2VO5.5 solid elec- trolyte. This demonstrates, for the first time, the ability of the latter to serve as a building block in construction of mixed-layer structures. The parent compound PbBi3VO7.5-dCl (d = 0.05) has been investigated by powder XRD, TEM, XPS methods and magnetic susceptibility measurements. An unexpected but important condition for the formation of the mixed-layer structure is partial (ca. 5%) reduction of VV into VIV which probably suppresses competitive formation of apatite-like Pb – Bi vanadates. This reduction also stabilizes the g polymorphic form of Bi2VO5.5 not only in the intergrowth structure, but in Bi2V1-xMxO5.5-y (M – Nb, Sb) solid solutions.
Address
Corporate Author				Thesis
Publisher		Place of Publication		Editor
Language		Wos	000418566200005	Publication Date	2017-11-21
Series Editor		Series Title		Abbreviated Series Title
Series Volume		Series Issue		Edition
ISSN	1293-2558	ISBN		Additional Links	UA library record; WoS full record; WoS citing articles
Impact Factor	1.811	Times cited	1	Open Access	Not_Open_Access
Notes	The work was partially supported by M.V. Lomonosov Moscow State University Program of Development and Russian Science Foundation under Grant No.14-13-00738. We also thank Dr. K.V. Zakharov (MSU) for the magnetic measurements of the PbBi3- VO7.5Cl sample.			Approved	Most recent IF: 1.811
Call Number	EMAT @ emat @c:irua:147239			Serial	4769
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Author	Zhukova, A.A.; Rumyantseva, M.N.; Zaytsev, V.B.; Zaytseva, A.V.; Abakumov, A.M.; Gaskov, A.M.
Title	Pd nanoparticles on SnO₂(Sb) whiskers : aggregation and reactivity in CO detection			Type	A1 Journal article
Year	2013	Publication	Journal of alloys and compounds	Abbreviated Journal	J Alloy Compd
Volume	565	Issue		Pages	6-10
Keywords	A1 Journal article; Engineering sciences. Technology; Electron microscopy for materials research (EMAT)
Abstract	Single crystal antimony-doped SnO2 whiskers have been synthesized by in situ doping process in horizontal flow reactor. The produced whiskers were modified with 0.1, 0.2, 0.5, 1 or 2 wt.% Pd. The processes of Pd particles growth and aggregation are described on the base of AFM and STEM data. Depending on the content of introduced Pd precursor, the various mechanisms (Volmer-Weber or Stranski-Krastanov) of Pd nanoparticles growth realize. The dependence of sensor signal to CO on Pd concentration has non-monotonous character determined by the size of Pd nanoparticles and their aggregation degree. The best sensor signal toward CO was observed for whiskers decorated with 0.1 wt.% Pd. This concentration corresponds to the presence of individual 3-5 nm Pd nanoparticles on the surface of the whiskers. (C) 2013 Elsevier B.V. All rights reserved.
Address
Corporate Author				Thesis
Publisher		Place of Publication	Amsterdam	Editor
Language		Wos	000317815300002	Publication Date	2013-03-13
Series Editor		Series Title		Abbreviated Series Title
Series Volume		Series Issue		Edition
ISSN	0925-8388;	ISBN		Additional Links	UA library record; WoS full record; WoS citing articles
Impact Factor	3.133	Times cited		Open Access
Notes				Approved	Most recent IF: 3.133; 2013 IF: 2.726
Call Number	UA @ lucian @ c:irua:108424			Serial	2566
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Author	Ovsyannikov, S.V.; Abakumov, A.M.; Tsirlin, A.A.; Schnelle, W.; Egoavil, R.; Verbeeck, J.; Van Tendeloo, G.; Glazyrin, K.V.; Hanfland, M.; Dubrovinsky, L.
Title	Perovskite-like Mn₂O₃ : a path to new manganites			Type	A1 Journal article
Year	2013	Publication	Angewandte Chemie	Abbreviated Journal	Angew Chem Int Edit
Volume	52	Issue	5	Pages	1494-1498
Keywords	A1 Journal article; Electron microscopy for materials research (EMAT)
Abstract	Korund-artiges ε-Mn2O3 und Perowskit-artiges ζ-Mn2O3, zwei neue Phasen von Mn2O3, wurden unter hohen Drücken bei hohen Temperaturen synthetisiert. Die Manganatome können vollständig die A- und B-Positionen der Perowskitstruktur besetzen. ζ-Mn2O3 (siehe Bild, A-Positionsordnung) enthält Mn in den drei Oxidationsstufen +II, +III und +IV.
Address
Corporate Author				Thesis
Publisher		Place of Publication	Weinheim	Editor
Language		Wos	000313913300027	Publication Date	2012-12-22
Series Editor		Series Title		Abbreviated Series Title
Series Volume		Series Issue		Edition
ISSN	1433-7851;	ISBN		Additional Links	UA library record; WoS full record; WoS citing articles
Impact Factor	11.994	Times cited	84	Open Access
Notes	This work was supported by the DFG (project OV-110/1-1), Alexander von Humboldt foundation, European Union Council (FP7)-Grant no. 246102 IFOX, European Research Council (FP7)-ERC Starting Grant no. 278510 VORTEX and ERC Grant no. 246791-COUNTATOMS, and Hercules fund from the Flemish Government. ECASJO_;			Approved	Most recent IF: 11.994; 2013 IF: 11.336
Call Number	UA @ lucian @ c:irua:108765UA @ admin @ c:irua:108765			Serial	2573
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Author	Gonnissen, J.; Batuk, D.; Nataf, G.F.; Jones, L.; Abakumov, A.M.; Van Aert, S.; Schryvers, D.; Salje, E.K.H.
Title	Direct Observation of Ferroelectric Domain Walls in LiNbO₃: Wall-Meanders, Kinks, and Local Electric Charges			Type	A1 Journal article
Year	2016	Publication	Advanced functional materials	Abbreviated Journal	Adv Funct Mater
Volume	26	Issue	26	Pages	7599-7604
Keywords	A1 Journal article; Engineering sciences. Technology; Electron microscopy for materials research (EMAT)
Abstract	Direct observations of the ferroelectric domain boundaries in LiNbO3 are performed using high-resolution high-angle annular dark field scanning transmission electron microscopy imaging, revealing a very narrow width of the domain wall between the 180° domains. The domain walls demonstrate local side-way meandering, which results in inclinations even when the overall wall orientation follows the ferroelectric polarization. These local meanders contain kinks with “head-to-head” and “tail-to-tail” dipolar configurations and are therefore locally charged. The charged meanders are confined to a few cation layers along the polarization direction and are separated by longer stretches of straight domain walls.
Address
Corporate Author				Thesis
Publisher		Place of Publication		Editor
Language		Wos	000388166700006	Publication Date	2016-09-16
Series Editor		Series Title		Abbreviated Series Title
Series Volume		Series Issue		Edition
ISSN	1616-301X	ISBN		Additional Links	UA library record; WoS full record; WoS citing articles
Impact Factor	12.124	Times cited	23	Open Access
Notes	J.G. acknowledges the support from the Research Foundation Flanders (FWO, Belgium) through various project fundings (G.0368.15N, G.0369.15N, and G.0374.13N), as well as the financial support from the European Union Seventh Framework Program (FP7/2007–2013) under Grant agreement no. 312483 (ESTEEM2). The authors thank J. Hadermann for useful suggestions on the interpretation of the HAADFSTEM images. E.K.H.S. thanks the EPSRC (EP/K009702/1) and the Leverhulme Trust (EM-2016-004) for support. G.F.N. thanks the National Research Fund, Luxembourg (FNR/P12/4853155/Kreisel) for support.; esteem2_jra2			Approved	Most recent IF: 12.124
Call Number	c:irua:135336 c:irua:135336			Serial	4129
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Author	Hendrickx, M.; Paulus, A.; Kirsanova, M.A.; Van Bael, M.K.; Abakumov, A.M.; Hardy, A.; Hadermann, J.
Title	The influence of synthesis method on the local structure and electrochemical properties of Li-rich/Mn-rich NMC cathode materials for Li-Ion batteries			Type	A1 Journal article
Year	2022	Publication	Nanomaterials	Abbreviated Journal	Nanomaterials-Basel
Volume	12	Issue	13	Pages	2269-18
Keywords	A1 Journal article; Engineering sciences. Technology; Electron microscopy for materials research (EMAT)
Abstract	Electrochemical energy storage plays a vital role in combating global climate change. Nowadays lithium-ion battery technology remains the most prominent technology for rechargeable batteries. A key performance-limiting factor of lithium-ion batteries is the active material of the positive electrode (cathode). Lithium- and manganese-rich nickel manganese cobalt oxide (LMR-NMC) cathode materials for Li-ion batteries are extensively investigated due to their high specific discharge capacities (>280 mAh/g). However, these materials are prone to severe capacity and voltage fade, which deteriorates the electrochemical performance. Capacity and voltage fade are strongly correlated with the particle morphology and nano- and microstructure of LMR-NMCs. By selecting an adequate synthesis strategy, the particle morphology and structure can be controlled, as such steering the electrochemical properties. In this manuscript we comparatively assessed the morphology and nanostructure of LMR-NMC (Li1.2Ni0.13Mn0.54Co0.13O2) prepared via an environmentally friendly aqueous solution-gel and co-precipitation route, respectively. The solution-gel (SG) synthesized material shows a Ni-enriched spinel-type surface layer at the {200} facets, which, based on our post-mortem high-angle annual dark-field scanning transmission electron microscopy and selected-area electron diffraction analysis, could partly explain the retarded voltage fade compared to the co-precipitation (CP) synthesized material. In addition, deviations in voltage fade and capacity fade (the latter being larger for the SG material) could also be correlated with the different particle morphology obtained for both materials.
Address
Corporate Author				Thesis
Publisher		Place of Publication		Editor
Language		Wos	000824547500001	Publication Date	2022-07-01
Series Editor		Series Title		Abbreviated Series Title
Series Volume		Series Issue		Edition
ISSN	2079-4991	ISBN		Additional Links	UA library record; WoS full record; WoS citing articles
Impact Factor	5.3	Times cited		Open Access	Not_Open_Access
Notes				Approved	Most recent IF: 5.3
Call Number	UA @ admin @ c:irua:189591			Serial	7098
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Author	McCalla, E.; Prakash, A.S.; Berg, E.; Saubanere, M.; Abakumov, A.M.; Foix, D.; Klobes, B.; Sougrati, M.T.; Rousse, G.; Lepoivre, F.; Mariyappan, S.; Doublet, M.L.; Gonbeau, D.; Novak, P.; Van Tendeloo, G.; Hermann, R.P.; Tarascon, J.M.;
Title	Reversible Li-intercalation through oxygen reactivity in Li-rich Li-Fe-Te oxide materials			Type	A1 Journal article
Year	2015	Publication	Journal of the electrochemical society	Abbreviated Journal	J Electrochem Soc
Volume	162	Issue	162	Pages	A1341-A1351
Keywords	A1 Journal article; Electron microscopy for materials research (EMAT)
Abstract	Lithium-rich oxides are a promising class of positive electrode materials for next generation lithium-ion batteries, and oxygen plays a prominent role during electrochemical cycling either by forming peroxo-like species and/or by irreversibly forming oxygen gas during first charge. Here, we present Li-Fe-Te-O materials which show a tremendous amount of oxygen gas release. This oxygen release accounts for nearly all the capacity during the first charge and results in vacancies as seen by transmission electron microscopy. There is no oxidation of either metal during charge but significant changes in their environments. These changes are particularly extreme for tellurium. XRD and neutron powder diffraction both show limited Changes during cycling and no appreciable change in lattice parameters. A density functional theory study of this material is performed and demonstrates that the holes created on some of the oxygen atoms upon oxidation are partially stabilized through the formation of shorter O-O bonds, i.e. (O-2)(n-) species which on further delithiation show a spontaneous O-2 de-coordination from the cationic network and migration to the now empty lithium layer. The rate limiting step during charge is undoubtedly the diffusion of oxygen either out along the lithium layer or via columns of oxygen atoms. (C) 2015 The Electrochemical Society. All rights reserved.
Address
Corporate Author				Thesis
Publisher		Place of Publication	New York, N.Y.	Editor
Language		Wos	000355643700030	Publication Date	2015-04-29
Series Editor		Series Title		Abbreviated Series Title
Series Volume		Series Issue		Edition
ISSN	0013-4651;1945-7111;	ISBN		Additional Links	UA library record; WoS full record; WoS citing articles
Impact Factor	3.259	Times cited	23	Open Access
Notes				Approved	Most recent IF: 3.259; 2015 IF: 3.266
Call Number	c:irua:126445			Serial	2903
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Author	Vassiliev, S.Y.; Laurinavichute, V.K.; Abakumov, A.M.; Govorov, V.A.; Bendovskii, E.B.; Turner, S.; Filatov, A.Y.; Tarasovskii, V.P.; Borzenko, A.G.; Alekseeva, A.M.; Antipov, E.V.
Title	Microstructural aspects of the degradation behavior of SnO₂-based anodes for aluminum electrolysis			Type	A1 Journal article
Year	2010	Publication	Journal of the electrochemical society	Abbreviated Journal	J Electrochem Soc
Volume	157	Issue	5	Pages	C178-C186
Keywords	A1 Journal article; Electron microscopy for materials research (EMAT)
Abstract	The performance of SnO2 ceramic anodes doped with copper and antimony oxides was examined in cryolite alumina melts under anodic polarization at different cryolite ratios, temperatures, times, and current densities. The corroded part consists of a narrow strong corrosion zone at the anode surface with damage of the intergrain contacts and a large increase in porosity, a wider moderate corrosion zone with a smaller porosity increase, and a Cu depletion zone, where the ceramic retains its initial microstructure and a slight porosity increase occurs due to the removal of the Cu-rich inclusions. Mechanical destruction of the anode was never observed in the 10100 h tests. A microstructural model of the ceramic was suggested, consisting of grains with an Sb-doped SnO2 grain core surrounded by an ~200 to 500 nm grain shell where SnO2 was simultaneously doped with Sb and Mn+ (M=Cu2+,Fe3+,Al3+). The grains were separated by a few nanometers thick Cu-enriched grain boundaries. Different secondary charge carrier (holes) concentrations and electric conductivities in the grain core and grain shell result in a higher current density at the intergrain regions that leads to their profound degradation, especially in the low temperature acidic melt.
Address
Corporate Author				Thesis
Publisher		Place of Publication	New York, N.Y.	Editor
Language		Wos	000276555300037	Publication Date	2010-04-12
Series Editor		Series Title		Abbreviated Series Title
Series Volume		Series Issue		Edition
ISSN	0013-4651;	ISBN		Additional Links	UA library record; WoS full record; WoS citing articles
Impact Factor	3.259	Times cited	3	Open Access
Notes				Approved	Most recent IF: 3.259; 2010 IF: 2.427
Call Number	UA @ lucian @ c:irua:82260			Serial	2040
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Author	Mazo, G.N.; Savvin, S.N.; Abakumov, A.M.; Hadermann, J.; Dobrovol'skii, Y.A.; Leonova, L.S.
Title	Lanthanum-strontium cuprate as a promising cathodic matreila for solid oxide fuel cells			Type	A1 Journal article
Year	2007	Publication	Russian journal of electrochemistry	Abbreviated Journal	Russ J Electrochem+
Volume	43	Issue	4	Pages	436-442
Keywords	A1 Journal article; Electron microscopy for materials research (EMAT)
Abstract
Address
Corporate Author				Thesis
Publisher		Place of Publication		Editor
Language		Wos	000246338500010	Publication Date	2007-05-09
Series Editor		Series Title		Abbreviated Series Title
Series Volume		Series Issue		Edition
ISSN	1023-1935;1608-3342;	ISBN		Additional Links	UA library record; WoS full record; WoS citing articles
Impact Factor	0.828	Times cited	8	Open Access
Notes				Approved	Most recent IF: 0.828; 2007 IF: 0.263
Call Number	UA @ lucian @ c:irua:62062			Serial	1777
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Author	Kovba, M.L.; Skolis, Y.Y.; Abakumov, A.M.; Hadermann, J.; Sukhushina, I.S.
Title	The synthesis and thermodynamic properties of strontium fluoromanganite Sr_2.5Mn₆O_12.5-\deltaF₂			Type	A1 Journal article
Year	2010	Publication	Russian journal of physical chemistry A	Abbreviated Journal	Russ J Phys Chem A+
Volume	84	Issue	12	Pages	2033-2038
Keywords	A1 Journal article; Electron microscopy for materials research (EMAT)
Abstract	The existence of the [SrF(0.8)O(0.1)](2.5)[Mn(6)O(12)] = Sr(2.5)Mn(6)O(12.5 – delta)F(2) compound was established in the SrO-Mn(2)O(3)-SrF(2) system at 900A degrees C and p(O(2)) = 1 atm. The crystal structure of strontium fluoromanganite was determined from the X-ray powder diffraction data, electron diffraction, and high-resolution electron microscopy. It can be described in the monoclynic system with four Miller hklm indices: hklm: H = h a* + k b* + l c (1) () + m q (1), q (1), q (1) = c (2) () = gamma c (1) (*) , gamma a parts per thousand 0.632, a a parts per thousand a a parts per thousand 9.72 , b a parts per thousand 9.55 , c (1) a parts per thousand 2.84 , c (2) a parts per thousand 4.49 , monoclinic angle gamma a parts per thousand 95.6A degrees. The electromotive force method with a solid fluorine ion electrolyte was used to refine the composition of fluoromanganite and determine the thermodynamic functions of its formation from phases neighboring in the phase diagram (SrMn(3)O(6), Mn(2)O(3), SrF(2), and oxygen), Delta GA degrees, kJ/mol = -(111.7 +/- 1.9) + (89.5 +/- 1.5) x 10(-3) T.
Address
Corporate Author				Thesis
Publisher		Place of Publication	London	Editor
Language		Wos	000284775000004	Publication Date	2011-02-11
Series Editor		Series Title		Abbreviated Series Title
Series Volume		Series Issue		Edition
ISSN	0036-0244;1531-863X;	ISBN		Additional Links	UA library record; WoS full record; WoS citing articles
Impact Factor	0.581	Times cited	1	Open Access
Notes				Approved	Most recent IF: 0.581; 2010 IF: 0.503
Call Number	UA @ lucian @ c:irua:99190			Serial	3601
Permanent link to this record



Author	Abakumov, A.M.; Hadermann, J.; Van Tendeloo, G.; Antipov, E.V.
Title	Chemistry and structure of anion-deficient perovskites with translational interfaces			Type	A1 Journal article
Year	2008	Publication	Journal of the American Ceramic Society	Abbreviated Journal	J Am Ceram Soc
Volume	91	Issue	6	Pages	1807-1813
Keywords	A1 Journal article; Electron microscopy for materials research (EMAT)
Abstract
Address
Corporate Author				Thesis
Publisher		Place of Publication	Columbus, Ohio	Editor
Language		Wos	000256410700010	Publication Date	2008-04-29
Series Editor		Series Title		Abbreviated Series Title
Series Volume		Series Issue		Edition
ISSN	0002-7820;1551-2916;	ISBN		Additional Links	UA library record; WoS full record; WoS citing articles
Impact Factor	2.841	Times cited	39	Open Access
Notes				Approved	Most recent IF: 2.841; 2008 IF: 2.101
Call Number	UA @ lucian @ c:irua:70088			Serial	355
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Author	Hadermann, J.; Abakumov, A.M.
Title	Structure solution and refinement of metal-ion battery cathode materials using electron diffraction tomography			Type	A1 Journal article
Year	2019	Publication	And Materials	Abbreviated Journal
Volume	75	Issue	4	Pages	485-494
Keywords	A1 Journal article; Electron microscopy for materials research (EMAT)
Abstract	The applicability of electron diffraction tomography to the structure solution and refinement of charged, discharged or cycled metal-ion battery positive electrode (cathode) materials is discussed in detail. As these materials are often only available in very small amounts as powders, the possibility of obtaining single-crystal data using electron diffraction tomography (EDT) provides unique access to crucial information complementary to X-ray diffraction, neutron diffraction and high-resolution transmission electron microscopy techniques. Using several examples, the ability of EDT to be used to detect lithium and refine its atomic position and occupancy, to solve the structure of materials ex situ at different states of charge and to obtain in situ data on structural changes occurring upon electrochemical cycling in liquid electrolyte is discussed.
Address
Corporate Author				Thesis
Publisher		Place of Publication		Editor
Language		Wos	000480512600002	Publication Date	2019-08-05
Series Editor		Series Title		Abbreviated Series Title
Series Volume		Series Issue		Edition
ISSN		ISBN		Additional Links	UA library record; WoS full record; WoS citing articles
Impact Factor		Times cited	2	Open Access
Notes	; The following funding is acknowledged: Fonds Wetenschappelijk Onderzoek (grant No. G040116N); Russian Foundation of Basic Research (grant No. 17-03-00370-a). ;			Approved	Most recent IF: NA
Call Number	UA @ admin @ c:irua:161846			Serial	5397
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Author	Abakumov, A.M.; Shpanchenko, R.V.; Lebedev, O.I.; Van Tendeloo, G.; Amelinckx, S.; Antipov, E.V.
Title	The phase transition and crystal structures of Ba₃RM₂O_7.5 complex oxides (R=rare-earth elements, M = Al,Ga)			Type	A1 Journal article
Year	1999	Publication	Acta crystallographica: section A: foundations of crystallography	Abbreviated Journal	Acta Crystallogr A
Volume	55	Issue		Pages	828-839
Keywords	A1 Journal article; Electron microscopy for materials research (EMAT)
Abstract
Address
Corporate Author				Thesis
Publisher		Place of Publication	Copenhagen	Editor
Language		Wos	000082727000006	Publication Date	2002-07-27
Series Editor		Series Title		Abbreviated Series Title
Series Volume		Series Issue		Edition
ISSN	0108-7673;	ISBN		Additional Links	UA library record; WoS full record; WoS citing articles
Impact Factor	5.725	Times cited	7	Open Access
Notes				Approved	Most recent IF: 5.725; 1999 IF: 1.601
Call Number	UA @ lucian @ c:irua:29716			Serial	2591
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Author	Hadermann, J.; Van Tendeloo, G.; Abakumov, A.M.
Title	Transmission electron microscopy and structural phase transitions in anion-deficient perovskite-based oxides			Type	A1 Journal article
Year	2005	Publication	Acta crystallographica: section A: foundations of crystallography	Abbreviated Journal	Acta Crystallogr A
Volume	61	Issue	1	Pages	77-92
Keywords	A1 Journal article; Electron microscopy for materials research (EMAT)
Abstract
Address
Corporate Author				Thesis
Publisher		Place of Publication	Copenhagen	Editor
Language		Wos	000225865500008	Publication Date	2004-12-22
Series Editor		Series Title		Abbreviated Series Title
Series Volume		Series Issue		Edition
ISSN	0108-7673;	ISBN		Additional Links	UA library record; WoS full record; WoS citing articles
Impact Factor	5.725	Times cited	18	Open Access
Notes				Approved	Most recent IF: 5.725; 2005 IF: 1.791
Call Number	UA @ lucian @ c:irua:51442			Serial	3706
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Author	Takatsu, H.; Hernandez, O.; Yoshimune, W.; Prestipino, C.; Yamamoto, T.; Tassel, C.; Kobayashi, Y.; Batuk, D.; Shibata, Y.; Abakumov, A.M.; Brown, C.M.; Kageyama, H.
Title	Cubic lead perovskite PbMoO3 with anomalous metallic behavior			Type	A1 Journal article
Year	2017	Publication	Physical review B	Abbreviated Journal
Volume	95	Issue	15	Pages	155105
Keywords	A1 Journal article; Electron microscopy for materials research (EMAT)
Abstract	A previously unreported Pb-based perovskite PbMoO3 is obtained by high-pressure and high-temperature synthesis. This material crystallizes in the Pm3m cubic structure at room temperature, making it distinct from typical Pb-based perovskite oxides with a structural distortion. PbMoO3 exhibits a metallic behavior down to 0.1 K with an unusual T-sublinear dependence of the electrical resistivity. Moreover, a large specific heat is observed at low temperatures accompanied by a peak in C-P/T-3 around 10 K, in marked contrast to the isostructural metallic system SrMoO3. These transport and thermal properties for PbMoO3, taking into account anomalously large Pb atomic displacements detected through diffraction experiments, are attributed to a low-energy vibrational mode, associated with incoherent off-centering of lone-pair Pb2+ cations. We discuss the unusual behavior of the electrical resistivity in terms of a polaronlike conduction, mediated by the strong coupling between conduction electrons and optical phonons of the local low-energy vibrational mode.
Address
Corporate Author				Thesis
Publisher		Place of Publication		Editor
Language		Wos	000440605700001	Publication Date	2017-04-04
Series Editor		Series Title		Abbreviated Series Title
Series Volume		Series Issue		Edition
ISSN	2469-9969; 2469-9950	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:167288			Serial	7743
Permanent link to this record



Author	Nikolaev, I.V.; d' Hondt, H.; Abakumov, A.M.; Hadermann, J.; Balagurov, A.M.; Bobrikov, I.A.; Sheptyakov, D.V.; Pomjakushin, V.Y.; Pokholok, K.V.; Filimonov, D.S.; Van Tendeloo, G.; Antipov, E.V.
Title	Crystal structure, phase transition, and magnetic ordering in perovskitelike Pb_2-xBa_xFe₂O₅ solid solutions			Type	A1 Journal article
Year	2008	Publication	Physical review : B : condensed matter and materials physics	Abbreviated Journal	Phys Rev B
Volume	78	Issue	2	Pages	024426,1-12
Keywords	A1 Journal article; Electron microscopy for materials research (EMAT)
Abstract
Address
Corporate Author				Thesis
Publisher		Place of Publication	Lancaster, Pa	Editor
Language		Wos	000258190200085	Publication Date	2008-07-24
Series Editor		Series Title		Abbreviated Series Title
Series Volume		Series Issue		Edition
ISSN	1098-0121;1550-235X;	ISBN		Additional Links	UA library record; WoS full record; WoS citing articles
Impact Factor	3.836	Times cited	29	Open Access
Notes	Iap Vi			Approved	Most recent IF: 3.836; 2008 IF: 3.322
Call Number	UA @ lucian @ c:irua:70580			Serial	576
Permanent link to this record



Author	Lobanov, M.V.; Balagurov, A.M.; Pomjakushin, V.J.; Fischer, P.; Gutmann, M.; Abakumov, A.M.; D'yachenko, O.G.; Antipov, E.V.; Lebedev, O.I.; Van Tendeloo, G.
Title	Structural and magnetic properties of the colossal magnetoresistance perovskite La_0.85Ca_0.15MnO₃			Type	A1 Journal article
Year	2000	Publication	Physical review : B : condensed matter and materials physics	Abbreviated Journal	Phys Rev B
Volume	61	Issue	13	Pages	8941-8949
Keywords	A1 Journal article; Electron microscopy for materials research (EMAT)
Abstract
Address
Corporate Author				Thesis
Publisher		Place of Publication	Lancaster, Pa	Editor
Language		Wos	000086597400059	Publication Date	2002-07-27
Series Editor		Series Title		Abbreviated Series Title
Series Volume		Series Issue		Edition
ISSN	0163-1829;1095-3795;	ISBN		Additional Links	UA library record; WoS full record; WoS citing articles
Impact Factor	3.836	Times cited	47	Open Access
Notes				Approved	Most recent IF: 3.836; 2000 IF: NA
Call Number	UA @ lucian @ c:irua:54735			Serial	3197
Permanent link to this record



Author	Lebedev, O.I.; Van Tendeloo, G.; Abakumov, A.M.; Amelinckx, S.; Leibold, B.; Habermeier, H.-U.
Title	A study of the domain structure of epitaxial (La-Ca)MnO₃ films by high-resolution transmission electron microscopy			Type	A1 Journal article
Year	1999	Publication	Philosophical magazine: A: physics of condensed matter: defects and mechanical properties	Abbreviated Journal	Philos Mag A
Volume	79	Issue		Pages	1461-1478
Keywords	A1 Journal article; Electron microscopy for materials research (EMAT)
Abstract
Address
Corporate Author				Thesis
Publisher		Place of Publication	London	Editor
Language		Wos	000080687900013	Publication Date	2007-07-08
Series Editor		Series Title		Abbreviated Series Title
Series Volume		Series Issue		Edition
ISSN	0141-8610;1460-6992;	ISBN		Additional Links	UA library record; WoS full record; WoS citing articles
Impact Factor		Times cited	27	Open Access
Notes				Approved	Most recent IF: NA
Call Number	UA @ lucian @ c:irua:29713			Serial	3335
Permanent link to this record



Author	Lemmens, H.; Amelinckx, S.; Van Tendeloo, G.; Abakumov, A.M.; Rozova, M.G.; Antipov, E.V.
Title	Transmission electron microscopy study of polymorphism in barium gallate BaGa₂O₄			Type	A1 Journal article
Year	2003	Publication	Phase transitions	Abbreviated Journal	Phase Transit
Volume	76	Issue	7	Pages	653-670
Keywords	A1 Journal article; Electron microscopy for materials research (EMAT)
Abstract
Address
Corporate Author				Thesis
Publisher		Place of Publication	New York	Editor
Language		Wos	000184129400004	Publication Date	2003-11-10
Series Editor		Series Title		Abbreviated Series Title
Series Volume		Series Issue		Edition
ISSN	0141-1594;1029-0338;	ISBN		Additional Links	UA library record; WoS full record; WoS citing articles
Impact Factor	1.06	Times cited	6	Open Access
Notes				Approved	Most recent IF: 1.06; 2003 IF: 0.558
Call Number	UA @ lucian @ c:irua:54857			Serial	3719
Permanent link to this record



Author	Abakumov, A.M.; Lebedev, O.I.; Nistor, L.; Van Tendeloo, G.; Amelinckx, S.
Title	The ferroelectric phase transition in tridymite type BaAl₂O₄ studied by electron microscopy			Type	A1 Journal article
Year	2000	Publication	Phase transitions	Abbreviated Journal	Phase Transit
Volume	71	Issue		Pages	143-160
Keywords	A1 Journal article; Electron microscopy for materials research (EMAT)
Abstract
Address
Corporate Author				Thesis
Publisher		Place of Publication	New York	Editor
Language		Wos	000088795800005	Publication Date	2007-07-08
Series Editor		Series Title		Abbreviated Series Title
Series Volume		Series Issue		Edition
ISSN	0141-1594;1029-0338;	ISBN		Additional Links	UA library record; WoS full record; WoS citing articles
Impact Factor	1.06	Times cited	21	Open Access
Notes				Approved	Most recent IF: 1.06; 2000 IF: NA
Call Number	UA @ lucian @ c:irua:54724			Serial	1181
Permanent link to this record



Author	Rozova, M.G.; Grigoriev, V.V.; Bobrikov, I.A.; Filimonov, D.S.; Zakharov, K.V.; Volkova, O.S.; Vasiliev, A.N.; Antipov, E.V.; Tsirlin, A.A.; Abakumov, A.M.
Title	Synthesis, structure and magnetic ordering of the mullite-type Bi₂Fe_4-xCr_xO₉ solid solutions with a frustrated pentagonal Cairo lattice			Type	A1 Journal article
Year	2016	Publication	Journal of the Chemical Society : Dalton transactions	Abbreviated Journal	Dalton T
Volume	45	Issue	45	Pages	1192-1200
Keywords	A1 Journal article; Electron microscopy for materials research (EMAT)
Abstract	Highly homogeneous mullite-type solid solutions Bi2Fe4-xCrxO9 (x = 0.5, 1, 1.2) were synthesized using a soft chemistry technique followed by a solid-state reaction in Ar. The crystal structure of Bi2Fe3CrO9 was investigated using X-ray and neutron powder diffraction, transmission electron microscopy and Fe-57 Mossbauer spectroscopy (S.G. Pbam, a = 7.95579(9) angstrom , b = 8.39145(9) angstrom, c = 5.98242(7) angstrom, R-F(X-ray) = 0.022, R-F(neutron) = 0.057). The ab planes in the structure are tessellated with distorted pentagonal loops built up by three tetrahedrally coordinated Fe sites and two octahedrally coordinated Fe/Cr sites, linked together in the ab plane by corner-sharing forming a pentagonal Cairo lattice. Magnetic susceptibility measurements and powder neutron diffraction show that the compounds order antiferromagnetically (AFM) with the Neel temperatures decreasing upon increasing the Cr content from T-N similar to 250 K for x = 0 to T-N similar to 155 K for x = 1.2. The magnetic structure of Bi2Fe3CrO9 at T = 30 K is characterized by a propagation vector k = (1/2,1/2,1/2). The tetrahedrally coordinated Fe cations form singlet pairs within dimers of corner-sharing tetrahedra, but spins on the neighboring dimers are nearly orthogonal. The octahedrally coordinated (Fe, Cr) cations form antiferromagnetic up-up-down-down chains along c, while the spin arrangement in the ab plane is nearly orthogonal between nearest neighbors and collinear between second neighbors. The resulting magnetic structure is remarkably different from the one in pure Bi2Fe4O9 and features several types of spin correlations even on crystallographically equivalent exchange that may be caused by the simultaneous presence of Fe and Cr on the octahedral site.
Address
Corporate Author				Thesis
Publisher		Place of Publication	London	Editor
Language		Wos	000367614700041	Publication Date	2015-11-30
Series Editor		Series Title		Abbreviated Series Title
Series Volume		Series Issue		Edition
ISSN	0300-9246; 1477-9226; 1472-7773	ISBN		Additional Links	UA library record; WoS full record; WoS citing articles
Impact Factor	4.029	Times cited		Open Access
Notes				Approved	Most recent IF: NA
Call Number	UA @ lucian @ c:irua:131095			Serial	4257
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Author	Charkin, D.O.; Akinfiev, V.S.; Alekseeva, A.M.; Batuk, M.; Abakumov, A.M.; Kazakov, S.M.
Title	Synthesis and cation distribution in the new bismuth oxyhalides with the Sillen-Aurivillius intergrowth structures			Type	A1 Journal article
Year	2015	Publication	Journal of the Chemical Society : Dalton transactions	Abbreviated Journal	Dalton T
Volume	44	Issue	44	Pages	20568-20576
Keywords	A1 Journal article; Electron microscopy for materials research (EMAT)
Abstract	About 20 new compounds with the Sillen-Aurivillius intergrowth structure, (MeMeBi3Nb2O11X)-Me-1-Bi-2 (Me-1 = Pb, Sr, Ba; Me-2 = Ca, Sr, Ba; X = Cl, Br, I), have been prepared. They are composed of stacking of [ANb(2)O(7)] perovskite blocks, fluorite-type [M2O2] blocks and halogen sheets. The cation distribution between the fluorite and perovskite layers has been studied for Ba2Bi3Nb2O11I, Ca1.25Sr0.75Bi3Nb2O11Cl, BaCaBi3Nb2O11Br and Sr2Bi3Nb2O11Cl. The smaller Me cations tend to reside in the perovskite block while the larger ones are situated in the fluorite-type block. The distribution of the elements was confirmed for BaCaBi3Nb2O11Br using energy dispersive X-ray analysis combined with scanning transmission electron microscopy (STEM-EDX). An electron diffraction study of this compound reveals a local symmetry lowering caused by weakly correlated rotation of NbO6 octahedra. Based on our findings, we suggest a new stability criterion for mixed-layer structures, which is that net charges of any two consecutive layers do not compensate for each other and only the whole layer sequence is electroneutral.
Address
Corporate Author				Thesis
Publisher		Place of Publication	London	Editor
Language		Wos	000365411500036	Publication Date	2015-10-30
Series Editor		Series Title		Abbreviated Series Title
Series Volume		Series Issue		Edition
ISSN	0300-9246; 1477-9226; 1472-7773	ISBN		Additional Links	UA library record; WoS full record; WoS citing articles
Impact Factor	4.029	Times cited	5	Open Access
Notes				Approved	Most recent IF: NA
Call Number	UA @ lucian @ c:irua:130330			Serial	4256
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Author	Mikhailova, D.; Reichel, P.; Tsirlin, A.A.; Abakumov, A.M.; Senyshyn, A.; Mogare, K.M.; Schmidt, M.; Kuo, C.Y.; Pao, C.W.; Pi, T.W.; Lee, J.F.; Hu, Z.; Tjeng, L.H.;
Title	Oxygen-driven competition between low-dimensional structures of Sr₃CoMO₆ and Sr₃CoMO_7-\delta with M = Ru,Ir			Type	A1 Journal article
Year	2014	Publication	Journal of the Chemical Society : Dalton transactions	Abbreviated Journal	Dalton T
Volume	43	Issue	37	Pages	13883-13891
Keywords	A1 Journal article; Electron microscopy for materials research (EMAT)
Abstract	We have realized a reversible structure transformation of one-dimensional 1D K4CdCl6-type Sr3CoMO6 with the Co2+/M4+ cation ordering into the two-dimensional 2D double layered Ruddlesden-Popper structure Sr3CoMO7-delta with a random distribution of Co and M (with M = Ru, Ir) upon increasing the partial oxygen pressure. The combined soft and hard X-ray absorption spectroscopy studies show that under transformation, Co and M cations were oxidized to Co3+ and M5+. During oxidation, high-spin Co2+ in Sr3CoMO6 first transforms into high-spin Co3+ in oxygen-deficient Sr3CoMO7-delta, and then further transforms into low-spin Co3+ in fully oxidized Sr3CoMO7 upon further increasing the partial pressure of oxygen. The 1D Sr3CoMO6 compound is magnetically ordered at low temperatures with the magnetic moments lying along the c-axis. Their alignment is parallel for Sr3CoRuO6 and antiparallel for Sr3CoIrO6. The 2D compounds reveal a spin-glass-like behavior related to the random distribution of magnetic cations in the structure.
Address
Corporate Author				Thesis
Publisher		Place of Publication	London	Editor
Language		Wos	000342074100009	Publication Date	2014-07-28
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	7	Open Access
Notes				Approved	Most recent IF: 4.029; 2014 IF: 4.197
Call Number	UA @ lucian @ c:irua:119960			Serial	2545
Permanent link to this record



Author	Reynaud, M.; Rousse, G.; Abakumov, A.M.; Sougrati, M.T.; Van Tendeloo, G.; Chotard, J.-N.; Tarascon, J.-M.
Title	Design of new electrode materials for Li-ion and Na-ion batteries from the bloedite mineral Na₂Mg(SO₄)₂\cdot4H₂O			Type	A1 Journal article
Year	2014	Publication	Journal of materials chemistry A : materials for energy and sustainability	Abbreviated Journal	J Mater Chem A
Volume	2	Issue	8	Pages	2671-2680
Keywords	A1 Journal article; Engineering sciences. Technology; Electron microscopy for materials research (EMAT)
Abstract	Mineralogy offers a large database to search for Li- or Na-based compounds having suitable structural features for acting as electrode materials, LiFePO4 being one example. Here we further explore this avenue and report on the electrochemical properties of the bloedite type compounds Na2M(SO4)(2)center dot 4H(2)O (M = Mg, Fe, Co, Ni, Zn) and their dehydrated phases Na2M(SO4)(2) (M = Fe, Co), whose structures have been solved via complementary synchrotron X-ray diffraction, neutron powder diffraction and transmission electron microscopy. Among these compounds, the hydrated and anhydrous iron-based phases show electrochemical activity with the reversible release/uptake of 1 Na+ or 1 Li+ at high voltages of similar to 3.3 V vs. Na+/Na-0 and similar to 3.6 V vs. Li+/Li-0, respectively. Although the reversible capacities remain lower than 100 mA h g(-1), we hope this work will stress further the importance of mineralogy as a source of inspiration for designing eco-efficient electrode materials.
Address
Corporate Author				Thesis
Publisher		Place of Publication	Cambridge	Editor
Language		Wos	000331247500031	Publication Date	2013-11-22
Series Editor		Series Title		Abbreviated Series Title
Series Volume		Series Issue		Edition
ISSN	2050-7488;2050-7496;	ISBN		Additional Links	UA library record; WoS full record; WoS citing articles
Impact Factor	8.867	Times cited	56	Open Access
Notes				Approved	Most recent IF: 8.867; 2014 IF: 7.443
Call Number	UA @ lucian @ c:irua:115807			Serial	659
Permanent link to this record



Author	Vasiliev, R.B.; Babynina, A.V.; Maslova, O.A.; Rumyantseva, M.N.; Ryabova, L.I.; Dobrovolsky, A.A.; Drozdov, K.A.; Khokhlov, D.R.; Abakumov, A.M.; Gaskov, A.M.
Title	Photoconductivity of nanocrystalline SnO₂ sensitized with colloidal CdSe quantum dots			Type	A1 Journal article
Year	2013	Publication	Journal of materials chemistry C : materials for optical and electronic devices	Abbreviated Journal	J Mater Chem C
Volume	1	Issue	5	Pages	1005-1010
Keywords	A1 Journal article; Electron microscopy for materials research (EMAT)
Abstract	A highly reproducible photoresponse is observed in nanocrystalline SnO2 thick films sensitized with CdSe quantum dots. The effect of the SnO2 matrix microstructure on the photoconductivity kinetics and photoresponse amplitude is demonstrated. The photoresponse of the sensitized SnO2 thick films reaches more than two orders of magnitude under illumination with the wavelength of the excitonic transition of the quantum dots. Long-term photoconductivity kinetics and photoresponse dependence on illumination intensity reveal power-law behavior inherent to the disordered nature of SnO2. The photoconductivity of the samples rises with the coarsening of the granular structure of the SnO2 matrix. At the saturation region, the photoresponse amplitude remains stable under 10(4) pulses of illumination switching, demonstrating a remarkably high stability.
Address
Corporate Author				Thesis
Publisher		Place of Publication		Editor
Language		Wos	000314803600016	Publication Date	2012-11-14
Series Editor		Series Title		Abbreviated Series Title
Series Volume		Series Issue		Edition
ISSN	2050-7526;2050-7534;	ISBN		Additional Links	UA library record; WoS full record; WoS citing articles
Impact Factor	5.256	Times cited	13	Open Access
Notes				Approved	Most recent IF: 5.256; 2013 IF: NA
Call Number	UA @ lucian @ c:irua:107705			Serial	2610
Permanent link to this record



Author	Yang, T.; Abakumov, A.M.; Hadermann, J.; Van Tendeloo, G.; Nowik, I.; Stephens, P.W.; Hamberger, J.; Tsirlin, A.A.; Ramanujachary, K.V.; Lofland, S.; Croft, M.; Ignatov, A.; Sun, J.; Greenblatt, M.
Title	_BiMnFe₂O₆, a polysynthetically twinned hcp MO structure			Type	A1 Journal article
Year	2010	Publication	Chemical science	Abbreviated Journal	Chem Sci
Volume	1	Issue	6	Pages	751-762
Keywords	A1 Journal article; Electron microscopy for materials research (EMAT)
Abstract	The most efficient use of spatial volume and the lowest potential energies in the metal oxide structures are based on cubic close packing (ccp) or hexagonal close packing (hcp) of anions with cations occupying the interstices. A promising way to tune the composition of close packed oxides and design new compounds is related to fragmenting the parent structure into modules by periodically spaced planar interfaces, such as twin planes at the unit cell scale. The unique crystal chemistry properties of cations with a lone electron pair, such as Bi3+ or Pb2+, when located at interfaces, enables them to act as chemical scissors, to help relieve configurational strain. With this approach, we synthesized a new oxide, BiMnFe2O6, where fragments of the hypothetical hcp oxygen-based MO structure (the NiAs structure type), for the first time, serve as the building modules in a complex transition metal oxide. Mn3+ and Fe3+ ions are randomly distributed in two crystallographically independent sites (M1 and M2). The structure consists of quasi two-dimensional blocks of the 2H hexagonal close packed MO structure cut along the (114) crystal plane of the hcp lattice and stacked along the c axis. The blocks are related by a mirror operation that allows BiMnFe2O6 to be considered as a polysynthetically twinned 2H hcp MO structure. The transition to an AFM state with an incommensurate spin configuration at [similar] 212 K is established by 57Fe Mössbauer spectroscopy, magnetic susceptibility, specific heat and low temperature powder neutron diffraction.
Address
Corporate Author				Thesis
Publisher	Royal Society of Chemistry	Place of Publication	Cambridge	Editor
Language		Wos	000283939200013	Publication Date	2010-10-12
Series Editor		Series Title		Abbreviated Series Title
Series Volume		Series Issue		Edition
ISSN	2041-6520;2041-6539;	ISBN		Additional Links	UA library record; WoS full record; WoS citing articles
Impact Factor	8.668	Times cited	12	Open Access
Notes				Approved	Most recent IF: 8.668; 2010 IF: NA
Call Number	UA @ lucian @ c:irua:85823			Serial	3517
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Author	Van Tendeloo, G.; Hadermann, J.; Abakumov, A.M.; Antipov, E.V.
Title	Advanced electron microscopy and its possibilities to solve complex structures: application to transition metal oxides			Type	A1 Journal article
Year	2009	Publication	Journal of materials chemistry	Abbreviated Journal	J Mater Chem
Volume	19	Issue	18	Pages	2660-2670
Keywords	A1 Journal article; Electron microscopy for materials research (EMAT)
Abstract	Design and optimization of materials properties can only be performed through a thorough knowledge of the structure of the compound. In this feature article we illustrate the possibilities of advanced electron microscopy in materials science and solid state chemistry. The different techniques are briefly discussed and several examples are given where the structures of complex oxides, often with a modulated structure, have been solved using electron microscopy.
Address
Corporate Author				Thesis
Publisher		Place of Publication	Cambridge	Editor
Language		Wos	000265740600002	Publication Date	2009-02-04
Series Editor		Series Title		Abbreviated Series Title
Series Volume		Series Issue		Edition
ISSN	0959-9428;1364-5501;	ISBN		Additional Links	UA library record; WoS full record; WoS citing articles
Impact Factor		Times cited	9	Open Access
Notes				Approved	Most recent IF: NA
Call Number	UA @ lucian @ c:irua:77065			Serial	68
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Author	Hadermann, J.; Abakumov, A.M.; d' Hondt, H.; Kalyuzhnaya, A.S.; Rozova, M.G.; Markina, M.M.; Mikheev, M.G.; Tristan, N.; Klingeler, R.; Büchner, B.; Antipov, E.V.
Title	Synthesis and crystal structure of the Sr₂Al_1.07Mn_0.93O₅ brownmillerite			Type	A1 Journal article
Year	2007	Publication	Journal of materials chemistry	Abbreviated Journal	J Mater Chem
Volume	17	Issue	7	Pages	692-698
Keywords	A1 Journal article; Electron microscopy for materials research (EMAT)
Abstract
Address
Corporate Author				Thesis
Publisher		Place of Publication	Cambridge	Editor
Language		Wos	000244085100016	Publication Date	2006-12-15
Series Editor		Series Title		Abbreviated Series Title
Series Volume		Series Issue		Edition
ISSN	0959-9428;1364-5501;	ISBN		Additional Links	UA library record; WoS full record; WoS citing articles
Impact Factor		Times cited	31	Open Access
Notes	Iap V-1			Approved	Most recent IF: NA
Call Number	UA @ lucian @ c:irua:62061			Serial	3430
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