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Lyubutin I, Starchikov S, Troyan I, Nikiforova Y, Lyubutina M, Gavriliuk A. Pressure Induced Spin Crossover and Magnetic Properties of Multiferroic Ba 3NbFe 3Si 2O 14. Molecules 2020; 25:molecules25173808. [PMID: 32825707 PMCID: PMC7504703 DOI: 10.3390/molecules25173808] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2020] [Revised: 08/15/2020] [Accepted: 08/19/2020] [Indexed: 12/03/2022] Open
Abstract
Recently, the iron containing langasite-type crystal Ba3NbFe3Si2O14 has attracted great attention as a new magnetically induced multiferroic. In this work, magnetic, structural and electronic properties of the multiferroic Ba3NbFe3Si2O14 were investigated by several methods, including synchrotron X-ray diffraction, Raman spectroscopy and synchrotron Mössbauer source technique at high quasi-hydrostatic pressures (up to 70 GPa), created in diamond anvil cells. At room temperature, two structural transitions at pressures of about 3.0 and 17.5 GPa were detected. Mössbauer studies at high pressures revealed a radical change in the magnetic properties during structural transitions. At pressures above 18 GPa, the crystal transforms into two magnetic fractions, and in one of them the Néel temperature (TN) increases by about four times compared with the TN value in the initial phase (from 27 to 115 K). At pressures above 50 GPa, a spin crossover occurs when the fraction of iron Fe3+ ions in oxygen octahedra transits from the high-spin (HS, S = 5/2) to the low-spin (LS, S = 1/2) state. This leads to a new change in the magnetic properties. The magnetic ordering temperature of the LS sublattice was found to be of about 22(1) K, and magnetic correlations between HS and LS sublattices were studied.
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Affiliation(s)
- Igor Lyubutin
- Shubnikov Institute of Crystallography of FSRC “Crystallography and Photonics” of Russian Academy of Sciences, 119333 Moscow, Russia; (I.L.); (I.T.); (Y.N.); (M.L.); (A.G.)
| | - Sergey Starchikov
- Shubnikov Institute of Crystallography of FSRC “Crystallography and Photonics” of Russian Academy of Sciences, 119333 Moscow, Russia; (I.L.); (I.T.); (Y.N.); (M.L.); (A.G.)
- Correspondence: ; Tel.: +7-499-330-8329
| | - Ivan Troyan
- Shubnikov Institute of Crystallography of FSRC “Crystallography and Photonics” of Russian Academy of Sciences, 119333 Moscow, Russia; (I.L.); (I.T.); (Y.N.); (M.L.); (A.G.)
| | - Yulia Nikiforova
- Shubnikov Institute of Crystallography of FSRC “Crystallography and Photonics” of Russian Academy of Sciences, 119333 Moscow, Russia; (I.L.); (I.T.); (Y.N.); (M.L.); (A.G.)
| | - Marianna Lyubutina
- Shubnikov Institute of Crystallography of FSRC “Crystallography and Photonics” of Russian Academy of Sciences, 119333 Moscow, Russia; (I.L.); (I.T.); (Y.N.); (M.L.); (A.G.)
| | - Alexander Gavriliuk
- Shubnikov Institute of Crystallography of FSRC “Crystallography and Photonics” of Russian Academy of Sciences, 119333 Moscow, Russia; (I.L.); (I.T.); (Y.N.); (M.L.); (A.G.)
- Institute for Nuclear Research, Russian Academy of Sciences, Troitsk, 142190 Moscow, Russia
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X-Ray Diffraction under Extreme Conditions at the Advanced Light Source. QUANTUM BEAM SCIENCE 2018. [DOI: 10.3390/qubs2010004] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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3
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Moré R, Olah M, Balaghi SE, Jäker P, Siol S, Zhou Y, Patzke GR. Bi 2O 2CO 3 Growth at Room Temperature: In Situ X-ray Diffraction Monitoring and Thermal Behavior. ACS OMEGA 2017; 2:8213-8221. [PMID: 31457364 PMCID: PMC6644937 DOI: 10.1021/acsomega.7b01359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/13/2017] [Accepted: 11/07/2017] [Indexed: 06/10/2023]
Abstract
The room-temperature formation of bismuth oxycarbonate (Bi2O2CO3) from Bi2O3 in sodium carbonate buffer was investigated with in situ powder X-ray diffraction (PXRD) in combination with electron microscopy and vibrational spectroscopy. Time-resolved PXRD measurements indicate a pronounced and rather complex pH dependence of the reaction mechanism. Bi2O2CO3 formation proceeds within a narrow window between pH 8 and 10 via different mechanisms. Although a zero-dimensional nucleation model prevails around pH 8, higher pH values induce a change toward a diffusion-controlled model, followed by a transition to regular nucleation kinetics. Ex situ synthetic and spectroscopic studies confirm these trends and demonstrate that in situ monitoring affords vital parameter information for the controlled fabrication of Bi2O2CO3 materials. Furthermore, the β → α bismuth oxide transformation temperatures of Bi2O2CO3 precursors obtained from different synthetic routes differ notably (by min 50 °C) from commercially available bismuth oxide. Parameter studies suggest a stabilizing role of surface carbonate ions in the as-synthesized bismuth oxide sources. Our results reveal the crucial role of multiple preparative history parameters, especially of pH value and source materials, for the controlled access to bismuth oxide-based catalysts and related functional compounds.
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Affiliation(s)
- René Moré
- Department
of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
| | - Michael Olah
- Department
of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
| | - S. Esmael Balaghi
- Department
of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
| | - Philipp Jäker
- Laboratory
for Multifunctional Materials, Department of Materials, ETH Zurich, Vladimir-Prelog-Weg 5, CH-8093 Zurich, Switzerland
| | - Sebastian Siol
- Laboratory
for Joining Technologies and Corrosion, Empa, Swiss Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, CH-8600 Dübendorf, Switzerland
| | - Ying Zhou
- The
Center of New Energy Materials and Technology, School of Materials
Science and Engineering, Southwest Petroleum
University, 610500 Chengdu, China
| | - Greta R. Patzke
- Department
of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
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Krause A, Dörfler S, Piwko M, Wisser FM, Jaumann T, Ahrens E, Giebeler L, Althues H, Schädlich S, Grothe J, Jeffery A, Grube M, Brückner J, Martin J, Eckert J, Kaskel S, Mikolajick T, Weber WM. High Area Capacity Lithium-Sulfur Full-cell Battery with Prelitiathed Silicon Nanowire-Carbon Anodes for Long Cycling Stability. Sci Rep 2016; 6:27982. [PMID: 27319783 PMCID: PMC4913245 DOI: 10.1038/srep27982] [Citation(s) in RCA: 62] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2016] [Accepted: 05/27/2016] [Indexed: 12/03/2022] Open
Abstract
We show full Li/S cells with the use of balanced and high capacity electrodes to address high power electro-mobile applications. The anode is made of an assembly comprising of silicon nanowires as active material densely and conformally grown on a 3D carbon mesh as a light-weight current collector, offering extremely high areal capacity for reversible Li storage of up to 9 mAh/cm(2). The dense growth is guaranteed by a versatile Au precursor developed for homogenous Au layer deposition on 3D substrates. In contrast to metallic Li, the presented system exhibits superior characteristics as an anode in Li/S batteries such as safe operation, long cycle life and easy handling. These anodes are combined with high area density S/C composite cathodes into a Li/S full-cell with an ether- and lithium triflate-based electrolyte for high ionic conductivity. The result is a highly cyclable full-cell with an areal capacity of 2.3 mAh/cm(2), a cyclability surpassing 450 cycles and capacity retention of 80% after 150 cycles (capacity loss <0.4% per cycle). A detailed physical and electrochemical investigation of the SiNW Li/S full-cell including in-operando synchrotron X-ray diffraction measurements reveals that the lower degradation is due to a lower self-reduction of polysulfides after continuous charging/discharging.
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Affiliation(s)
- Andreas Krause
- Namlab gGmbH, 01187 Dresden, Germany
- Center for Advancing Electronics Dresden (CfAED), TU Dresden, Dresden, Germany
| | - Susanne Dörfler
- Fraunhofer Institute for Material and Beam Technology (IWS), Winterbergstr. 28, 01277 Dresden, Germany
- Department for Inorganic Chemistry I, TU Dresden, Dresden, Germany
| | - Markus Piwko
- Fraunhofer Institute for Material and Beam Technology (IWS), Winterbergstr. 28, 01277 Dresden, Germany
| | | | - Tony Jaumann
- Leibniz Institute for Solid State and Materials Research (IFW) Dresden e.V., Helmholtzstr. 20, 01069 Dresden, Germany
| | - Eike Ahrens
- Leibniz Institute for Solid State and Materials Research (IFW) Dresden e.V., Helmholtzstr. 20, 01069 Dresden, Germany
- Institut für Werkstoffwissenschaft, TU Dresden, Helmholtzstr. 7, 01069 Dresden, Germany
| | - Lars Giebeler
- Leibniz Institute for Solid State and Materials Research (IFW) Dresden e.V., Helmholtzstr. 20, 01069 Dresden, Germany
- Institut für Werkstoffwissenschaft, TU Dresden, Helmholtzstr. 7, 01069 Dresden, Germany
| | - Holger Althues
- Fraunhofer Institute for Material and Beam Technology (IWS), Winterbergstr. 28, 01277 Dresden, Germany
| | - Stefan Schädlich
- Fraunhofer Institute for Material and Beam Technology (IWS), Winterbergstr. 28, 01277 Dresden, Germany
| | - Julia Grothe
- Department for Inorganic Chemistry I, TU Dresden, Dresden, Germany
| | | | | | - Jan Brückner
- Fraunhofer Institute for Material and Beam Technology (IWS), Winterbergstr. 28, 01277 Dresden, Germany
| | - Jan Martin
- Department for Inorganic Chemistry I, TU Dresden, Dresden, Germany
| | - Jürgen Eckert
- Leibniz Institute for Solid State and Materials Research (IFW) Dresden e.V., Helmholtzstr. 20, 01069 Dresden, Germany
- Institut für Werkstoffwissenschaft, TU Dresden, Helmholtzstr. 7, 01069 Dresden, Germany
- Erich Schmid Institute of Materials Science, Austrian Academy of Sciences, A-8700 Leoben, Austria
- Department Materials Physics, Montanuniversität Leoben, Jahnstraße 12, A-8700 Leoben, Austria
| | - Stefan Kaskel
- Fraunhofer Institute for Material and Beam Technology (IWS), Winterbergstr. 28, 01277 Dresden, Germany
- Department for Inorganic Chemistry I, TU Dresden, Dresden, Germany
| | - Thomas Mikolajick
- Namlab gGmbH, 01187 Dresden, Germany
- Center for Advancing Electronics Dresden (CfAED), TU Dresden, Dresden, Germany
- Institute of Semiconductor and Microsystems Technology, TU Dresden, 01062 Dresden, Germany
| | - Walter M. Weber
- Namlab gGmbH, 01187 Dresden, Germany
- Center for Advancing Electronics Dresden (CfAED), TU Dresden, Dresden, Germany
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Merkel S, Hilairet N. Multifit/Polydefix: a framework for the analysis of polycrystal deformation using X-rays. J Appl Crystallogr 2015. [DOI: 10.1107/s1600576715010390] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Multifit/Polydefixis an open source IDL software package for the efficient processing of diffraction data obtained in deformation apparatuses at synchrotron beamlines.Multifitallows users to decompose two-dimensional diffraction images into azimuthal slices, fit peak positions, shapes and intensities, and propagate the results to other azimuths and images.Polydefixis for analysis of deformation experiments. Starting from output files created inMultifitor other packages, it will extract elastic lattice strains, evaluate sample pressure and differential stress, and prepare input files for further texture analysis. TheMultifit/Polydefixpackage is designed to make the tedious data analysis of synchrotron-based plasticity, rheology or other time-dependent experiments very straightforward and accessible to a wider community.
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Rademacher N, Bayarjargal L, Morgenroth W, Bauer J, Milman V, Winkler B. Study of the reaction products of SF6 and C in the laser heated diamond anvil cell by pair distribution function analysis and micro-Raman spectroscopy. J SOLID STATE CHEM 2015. [DOI: 10.1016/j.jssc.2014.12.015] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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7
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Kriegner D, Matěj Z, Kužel R, Holý V. Powder diffraction in Bragg-Brentano geometry with straight linear detectors. J Appl Crystallogr 2015; 48:613-618. [PMID: 25844084 PMCID: PMC4379442 DOI: 10.1107/s1600576715003465] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2015] [Accepted: 02/18/2015] [Indexed: 12/01/2022] Open
Abstract
The influence of a straight linear detector on the powder diffraction signal in the Bragg–Brentano focusing geometry is presented. Recipes for how to limit resolution-degrading effects are developed. A common way of speeding up powder diffraction measurements is the use of one- or two-dimensional detectors. This usually goes hand in hand with worse resolution and asymmetric peak profiles. In this work the influence of a straight linear detector on the resolution function in the Bragg–Brentano focusing geometry is discussed. Because of the straight nature of most modern detectors geometrical defocusing occurs, which heavily influences the line shape of diffraction lines at low angles. An easy approach to limit the resolution-degrading effects is presented. The presented algorithm selects an adaptive range of channels of the linear detector at low angles, resulting in increased resolution. At higher angles the whole linear detector is used and the data collection remains fast. Using this algorithm a well behaved resolution function is obtained in the full angular range, whereas using the full linear detector the resolution function varies within one pattern, which hinders line-shape and Rietveld analysis.
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Affiliation(s)
- Dominik Kriegner
- Department of Condensed Matter Physics, Charles University in Prague, Ke Karlovu 5, 121 16 Prague 2, Czech Republic
| | - Zdeněk Matěj
- Department of Condensed Matter Physics, Charles University in Prague, Ke Karlovu 5, 121 16 Prague 2, Czech Republic ; Max IV Laboratory, Lund University, Ole Römers väg 1, 223 63 Lund, Sweden
| | - Radomír Kužel
- Department of Condensed Matter Physics, Charles University in Prague, Ke Karlovu 5, 121 16 Prague 2, Czech Republic
| | - Václav Holý
- Department of Condensed Matter Physics, Charles University in Prague, Ke Karlovu 5, 121 16 Prague 2, Czech Republic
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8
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Kichanov SE, Kozlenko DP, Wąsicki J, Nawrocik W, Dubrovinsky LS, Liermann HP, Morgenroth W, Savenko BN. The polymorphic phase transformations in the chlorpropamide under pressure. J Pharm Sci 2014; 104:81-6. [PMID: 25393056 DOI: 10.1002/jps.24241] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2014] [Revised: 09/26/2014] [Accepted: 10/13/2014] [Indexed: 11/11/2022]
Abstract
The crystal structure and vibrational spectra of the chlorpropamide have been studied by means of the X-ray diffraction and Raman spectroscopy at pressures up to 24.6 and 4.4 GPa, respectively. Two polymorphic phase transitions, between initial orthorhombic form-A and a monoclinic form-AI at P ∼ 1.2 GPa and, in additional, to another monoclinic form-AII at P ∼ 3.0 GPa, were observed. At pressures above 9.6 GPa, a transformation to the amorphous phase of chlorpropamide was revealed. The lattice parameters, unit cell volumes, and vibration modes as functions of pressure were obtained for the different polymorphic modifications of chlorpropamide.
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Affiliation(s)
- Sergey E Kichanov
- Frank Laboratory of Neutron Physics, JINR, Dubna, 141980, Moscow Region, Russia
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9
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Winkler B, Friedrich A, Morgenroth W, Haussühl E, Milman V, Stanek CR, McClellan KJ. Compression behavior of Sm2Ti2O7-pyrochlore up to 50 GPa: single-crystal X-ray diffraction and density functional theory calculations. CHINESE SCIENCE BULLETIN-CHINESE 2014. [DOI: 10.1007/s11434-014-0635-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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10
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Dippel AC, Bindzus N, Saha D, Delitz JT, Liermann HP, Wahlberg N, Becker J, Bøjesen ED, Brummerstedt Iversen B. Synchrotron Powder Diffraction at P02.1 at PETRA III: From Electron Density Distributions toin situTotal Scattering. Z Anorg Allg Chem 2014. [DOI: 10.1002/zaac.201400203] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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11
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Rademacher N, Bayarjargal L, Morgenroth W, Winkler B, Ciezak-Jenkins J, Batyrev IG, Milman V. The local atomic structures of liquid CO at 3.6 GPa and polymerized CO at 0 to 30 GPa from high-pressure pair distribution function analysis. Chemistry 2014; 20:11531-9. [PMID: 25066949 DOI: 10.1002/chem.201403000] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2014] [Indexed: 11/12/2022]
Abstract
The local atomic structures of liquid and polymerized CO and its decomposition products were analyzed at pressures up to 30 GPa in diamond anvil cells by X-ray diffraction, pair distribution function (PDF) analysis, single-crystal diffraction, and Raman spectroscopy. The structural models were obtained by density functional calculations. Analysis of the PDF of a liquid CO-rich phase revealed that the local structure has a pronounced short-range order. The PDFs of polymerized amorphous CO at several pressures revealed the compression of the molecular structure; covalent bond lengths did not change significantly with pressure. Experimental PDFs could be reproduced with simulations from DFT-optimized structural models. Likely structural features of polymerized CO are thus 4- to 6-membered rings (lactones, cyclic ethers, and rings decorated with carbonyl groups) and long bent chains with carbonyl groups and bridging atoms. Laser heating polymerized CO at pressures of 7 to 9 GPa and 20 GPa resulted in the formation of CO(2).
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Affiliation(s)
- Nadine Rademacher
- Institut für Geowissenschaften, Goethe-Universität Frankfurt, 60438 Frankfurt am Main (Germany), Fax: (+49) 69-798-40109.
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12
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Jochmann A, Irman A, Bussmann M, Couperus JP, Cowan TE, Debus AD, Kuntzsch M, Ledingham KWD, Lehnert U, Sauerbrey R, Schlenvoigt HP, Seipt D, Stöhlker T, Thorn DB, Trotsenko S, Wagner A, Schramm U. High resolution energy-angle correlation measurement of hard x rays from laser-Thomson backscattering. PHYSICAL REVIEW LETTERS 2013; 111:114803. [PMID: 24074095 DOI: 10.1103/physrevlett.111.114803] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2013] [Indexed: 06/02/2023]
Abstract
Thomson backscattering of intense laser pulses from relativistic electrons not only allows for the generation of bright x-ray pulses but also for the investigation of the complex particle dynamics at the interaction point. For this purpose a complete spectral characterization of a Thomson source powered by a compact linear electron accelerator is performed with unprecedented angular and energy resolution. A rigorous statistical analysis comparing experimental data to 3D simulations enables, e.g., the extraction of the angular distribution of electrons with 1.5% accuracy and, in total, provides predictive capability for the future high brightness hard x-ray source PHOENIX (photon electron collider for narrow bandwidth intense x rays) and potential gamma-ray sources.
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Affiliation(s)
- A Jochmann
- Institute of Radiation Physics, Helmholtz-Zentrum Dresden - Rossendorf, Bautzner Landstrasse 400, 01328 Dresden, Germany and Technische Universität Dresden, 01062 Dresden, Germany
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13
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Herklotz M, Scheiba F, Hinterstein M, Nikolowski K, Knapp M, Dippel AC, Giebeler L, Eckert J, Ehrenberg H. Advances inin situpowder diffraction of battery materials: a case study of the new beamline P02.1 at DESY, Hamburg. J Appl Crystallogr 2013. [DOI: 10.1107/s0021889813013551] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
A brief review ofin situpowder diffraction methods for battery materials is given. Furthermore, it is demonstrated that the new beamline P02.1 at the synchrotron source PETRA III (DESY, Hamburg), equipped with a new electrochemical test cell design and a fast two-dimensional area detector, enables outstanding conditions forin situdiffraction studies on battery materials with complex crystal structures. For instance, the time necessary to measure a pattern can be reduced to the region of milliseconds accompanied by an excellent pattern quality. It is shown that even at medium detector distances the instrumental resolution is suitable for crystallite size refinements. Additional crucial issues like contributions to the background and availableqrange are determined.
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