Na7V3(P2O7)4 as a high voltage electrode material for Na-ion batteries: crystal structure and mechanism of Na+ extraction/insertion by operando X-ray diffraction

2020 ◽  
Vol 8 (40) ◽  
pp. 21110-21121
Author(s):  
Vadim M. Kovrugin ◽  
Jean-Noël Chotard ◽  
François Fauth ◽  
Christian Masquelier
Keyword(s):  
Crystal Structure ◽  
Cathode Material ◽  
Electrochemical Properties ◽  
Crystal Chemistry ◽  
High Voltage ◽  
Electrode Material ◽  
High Voltage Electrode ◽  
X Ray Diffraction ◽  
X Ray

The crystal chemistry and the electrochemical properties of Na7V3(P2O7)4 as a high voltage cathode material upon Na+ extraction/insertion were investigated by operando X-ray diffraction.

Therman Expansion and Crystal Chemistry of (Sr1−x , K2x )Zr4(PO4)6 Ceramic

1995 ◽  
Vol 28 (5) ◽  
pp. 508-512 ◽  
Author(s):  
D.-M. Liu ◽  
L.-J. Lin ◽  
C.-J. Chen
Keyword(s):  
Crystal Structure ◽  
Grain Size ◽  
Thermal Expansion ◽  
High Temperature ◽  
Crystal Chemistry ◽  
X Ray Diffraction ◽  
Lattice Thermal Expansion ◽  
X Ray ◽  
Thermal Expansion Anisotropy ◽  
Sufficient Degree

Thermal expansion of (Sr1−x , K2x )Zr4(PO4)6 (SrKZP) (with x = 0–1) ceramic was investigated using both a dilatometer and a high-temperature X-ray diffractometer. The coefficients of thermal expansion (CTEs) of the SrKZP ceramic measured by the dilatometer demonstrate a similar trend as those from high-temperature X-ray diffraction. Both measurements show an ultra-low CTE at x = 0.5; nevertheless, this composition shows significant lattice thermal-expansion anisotropy (TEA), while the minimum TEA appears with composition x = 0.2. Although it possessed a sufficient degree of TEA, the x = 0.5 composition showed no visible microcracks or negligible microcracks over a grain size as large as 15 μm. A transition of space group from R{\bar 3} to R{\bar 3}c with composition between x = 0.3 and x = 0.5 has been observed. The crystal structure of the SrKZP ceramic with possible occupations of strontium and/or potassium within the lattice in relation to their influence on the CTEs is proposed.

Wickenburgite, a double-layer silicate Pb3Al[6][Ca[6]Al[4]Si[4]10O27(H2O)3]·H2O: Crystal chemistry and thermal behaviour

2003 ◽  
Vol 218 (8) ◽  
Author(s):  
K.-F. Hesse ◽  
F. Liebau ◽  
H.-H. Eulert
Keyword(s):  
Crystal Structure ◽  
Single Crystal ◽  
Water Content ◽  
Crystal Chemistry ◽  
Diffraction Data ◽  
Thermal Analyses ◽  
Layer Silicate ◽  
X Ray Diffraction ◽  
X Ray ◽  
Ir Spectroscopic

AbstractTo clarify discrepancies in the literature with regard to the water content and crystal structure of wickenburgite, chemical and thermal analyses and IR spectroscopic measurements were made and the structure was redetermined with single-crystal X-ray diffraction data. It was found that the idealised composition of the mineral is PbPbWith regard to crystal structure, that described by Lam et al. is found to be essentially correct, except for an additional H

Hydrothermal Synthesis of CoSb2O4: In Situ Powder X-ray Diffraction, Crystal Structure, and Electrochemical Properties

2016 ◽  
Vol 16 (2) ◽  
pp. 834-841 ◽  
Author(s):  
Peter Nørby ◽  
Martin Roelsgaard ◽  
Martin Søndergaard ◽  
Bo B. Iversen
Keyword(s):  
Crystal Structure ◽  
Hydrothermal Synthesis ◽  
Electrochemical Properties ◽  
X Ray Diffraction ◽  
X Ray

The hydrothermal synthesis, crystal structure and electrochemical properties of MnSb2O4

2016 ◽  
Vol 45 (47) ◽  
pp. 18994-19001 ◽  
Author(s):  
Martin Roelsgaard ◽  
Peter Nørby ◽  
Espen Eikeland ◽  
Martin Søndergaard ◽  
Bo Brummerstedt Iversen
Keyword(s):  
Crystal Structure ◽  
Hydrothermal Synthesis ◽  
Single Crystal ◽  
Electrochemical Properties ◽  
X Ray Diffraction ◽  
Hydrothermal Conditions ◽  
X Ray ◽  
Phase Pure

Phase pure polycrystalline MnSb2O4 was synthesised under hydrothermal conditions, and the crystal structure was studied using single crystal and synchrotron powder X-ray diffraction from 100–1000 K.

The crystal-chemistry of Vietnamese talcs from the Thanh Son district (Phu Tho province, Vietnam)

Clay Minerals ◽  
2015 ◽  
Vol 50 (5) ◽  
pp. 607-617 ◽  
Author(s):  
Angela Dumas ◽  
François Martin ◽  
The Ngo Ke ◽  
Hanh Nguyen Van ◽  
Dung Nguyen Viet ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Nuclear Magnetic Resonance ◽  
Crystal Chemistry ◽  
Industrial Applications ◽  
Crystal Chemical ◽  
Chemical Analyses ◽  
X Ray Diffraction ◽  
Ore Deposit ◽  
X Ray ◽  
Wide Range

AbstractThe mineralogy and crystal chemistry of a new talc ore deposit situated at Thu Ngac commune, Thanh Son district, Phu Tho province, Vietnam, was investigated using X-ray fluorescence, electron microprobe, X-ray diffraction, Fourier transform infrared spectroscopy, solid-state nuclear magnetic resonance (29Si and1H) and colorimetry.Both chemical and crystal-chemical analyses showed that the talcs from the Phu Tho province are very pure because they contain few accessory minerals (chlorite, amphibole and goethite) and few substitutions of Si by Fe and Al in their crystal structure. The talc ore may well meet the standards required for a wide range of industrial applications.

Electrochemical Properties of Li-Riched Li[Li0.2Co0.4Mn 0.4]O2 Cathode Material for Lithium Ion Batteries

2011 ◽  
Vol 347-353 ◽  
pp. 3658-3661
Author(s):  
Zhe Li ◽  
Kai Zhu ◽  
Yu Hui Wang ◽  
Gang Li ◽  
Gang Chen ◽  
...  
Keyword(s):  
Solid Solution ◽  
Cathode Material ◽  
Electrochemical Properties ◽  
Lithium Ion Batteries ◽  
Sol Gel ◽  
High Capacity ◽  
Lithium Ion ◽  
Structural Rearrangement ◽  
X Ray Diffraction ◽  
X Ray

The Li[Li0.2Co0.4Mn0.4]O2 cathode material was prepared by a sol-gel method. The X-ray diffraction (XRD) spectroscopic showed that the material was a solid solution of LiCoO2 and Li2MnO3. The material showed a reversible discharge capacity of 155.6 mAhg−1 in the voltage window of 2.0-4.3 V after percharge to 4.6 V. While the material cycled in the same voltage window without precharge could only deliver capacity of 77.6 mAhg−1. This high capacity was attributed to the loss of oxygen and structural rearrangement in the precharge process.

Crystal structure of an inclusion complex between chiral monoaza-15-crown-5 and S(–)-1-phenyl-ethyl ammonium percholorate

2003 ◽  
Vol 218 (5) ◽  
Author(s):  
Süheyla Özbey ◽  
F. B. Kaynak ◽  
M. Toğrul ◽  
N. Demirel ◽  
H. Hoşgören
Keyword(s):  
Crystal Structure ◽  
Inclusion Complex ◽  
Single Crystal ◽  
X Ray Diffraction ◽  
Space Group ◽  
X Ray ◽  
New Type

AbstractA new type of inclusion complex, S(–)-1 phenyl ethyl ammonium percholorate complex of R-(–)-2-ethyl - N - benzyl - 4, 7, 10, 13 - tetraoxa -1- azacyclopentadecane, has been prepared and studied by NMR, IR and single crystal X-ray diffraction techniques. The compound crystallizes in space group

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