scholarly journals The Reaction Mechanism of a Complex Intercalation System: In Situ X-ray Diffraction Studies of the Chemical and Electrochemical Lithium Intercalation in Cr4TiSe8

2006 ◽  
Vol 12 (24) ◽  
pp. 6348-6355 ◽  
Author(s):  
Malte Behrens ◽  
Ragnar Kiebach ◽  
Jannes Ophey ◽  
Oliver Riemenschneider ◽  
Wolfgang Bensch
Keyword(s):  
Reaction Mechanism ◽  
Lithium Intercalation ◽  
X Ray Diffraction ◽  
X Ray

In-Situ X-ray Diffraction Study of Lithium Intercalation in Nanostructured Anatase Titanium dioxide

1998 ◽  
Vol 536 ◽  
Author(s):  
R. Van de Krol ◽  
E. A. Meulenkamp ◽  
A. Goossens ◽  
J. Schoonman
Keyword(s):  
Phase Transformation ◽  
Maximum Amount ◽  
Lithium Intercalation ◽  
X Ray Diffraction ◽  
X Ray ◽  
Before And After ◽  
The Difference ◽  
Two Phases ◽  
Reversible Phase

AbstractElectrochemical lithium intercalation in nanostructured anatase TiO2 is investigated with in-situ X-ray diffraction. A complete and reversible phase transformation from tetragonal anatase TiO2 to orthorhombic anatase Li0.5TiO2 is observed. The difference of the XRD spectra before and after insertion can be fitted with the lattice parameters of the two phases as fit parameters. The maximum amount of lithium that can be dissolved in anatase TiO2 before the phase transformation occurs is found to be very small.

Mechanism of Ca-Ba diffusion in lead-free (Ba,Ca)TiO3 piezoelectrics

2015 ◽  
Vol 1782 ◽  
pp. 23-28 ◽  
Author(s):  
Chang Shu ◽  
Daniel Reed ◽  
Tim Button
Keyword(s):  
Thermal Analysis ◽  
Reaction Mechanism ◽  
Solid State ◽  
Diffusion Couple ◽  
Grain Boundaries ◽  
Room Temperature ◽  
Lead Free ◽  
X Ray Diffraction ◽  
X Ray

AbstractThe reaction mechanism of BaCO3+CaCO3+TiO2 by solid state methods has been studied in this work using thermal analysis (DSC-TG) from 500 to 1500 °C and in situ X-ray diffraction (XRD) from room temperature to 800 °C. In the mixed powders, the CaO is firstly formed followed by presence of an intermediate Ba2TiO4 phase and finally the formation of CaTiO3, BaTiO3 and/or (Ba,Ca)TiO3, where the presence of CaO or CaTiO3 (CT) has slowed down the formation of BaTiO3 (BT). Raman microscopy of a BT-CT diffusion couple has shown that Ca2+ firstly diffuses into the BT grain boundaries and then into the BT core.

In situ X-ray diffraction experiments on lithium intercalation compounds

1982 ◽  
Vol 60 (3) ◽  
pp. 307-313 ◽  
Author(s):  
J. R. Dahn ◽  
M. A. Py ◽  
R. R. Haering
Keyword(s):  
Electrochemical Cell ◽  
Lithium Concentration ◽  
Host Lattice ◽  
Intercalation Compounds ◽  
Lithium Intercalation ◽  
X Ray Diffraction ◽  
Detailed Design ◽  
X Ray

We describe powder X-ray diffraction experiments on lithium intercalation compounds. Using a unique electrochemical cell which incorporates a beryllium X-ray window we are able to monitor changes in the host lattice which occur when the lithium concentration is altered electrochemically. The detailed design of the cells and experimental problems which arise when using the in situ X-ray diffraction technique are discussed. Results of experiments on LixTiS2 are reported for 0 ≤ x ≤ 2.

scholarly journals In situ X-ray spatial profiling reveals uneven compression of electrode assemblies and steep lateral gradients in lithium-ion coin cells

2020 ◽  
Vol 22 (38) ◽  
pp. 21977-21987 ◽  
Author(s):  
John S. Okasinski ◽  
Ilya A. Shkrob ◽  
Andrew Chuang ◽  
Marco-Tulio Fonseca Rodrigues ◽  
Abhi Raj ◽  
...  
Keyword(s):  
Lithium Ion ◽  
Lithium Intercalation ◽  
Lateral Heterogeneity ◽  
X Ray Diffraction ◽  
X Ray ◽  
Fast Charge ◽  
Spatial Profiling ◽  
Electrode Assemblies ◽  
Li Ion

In situ X-ray diffraction profilometry reveals radially nonuniform compression of the electrode assembly leading to large lateral heterogeneity of lithium intercalation and plating in the standard Li-ion coin cells in fast charge regimes.

In Situ X‐Ray Diffraction of Lithium Intercalation in Nanostructured and Thin Film Anatase TiO2

1999 ◽  
Vol 146 (9) ◽  
pp. 3150-3154 ◽  
Author(s):  
Roel van de Krol ◽  
Albert Goossens ◽  
Eric A. Meulenkamp
Keyword(s):  
Thin Film ◽  
Anatase Tio2 ◽  
Lithium Intercalation ◽  
X Ray Diffraction ◽  
X Ray

The Use of Advanced Analytical Techniques for Characterization of the Chemical, Physical, and Crystallographic Nature of a Surface

1973 ◽  
Vol 31 ◽  
pp. 132-133 ◽  
Author(s):  
R. E. Herfert
Keyword(s):  
Surface Characterization ◽  
Analytical Techniques ◽  
X Ray Diffraction ◽  
Depth Of Penetration ◽  
X Ray ◽  
The Past ◽  
Transmission Electron ◽  
Scanning Electron

Studies of the nature of a surface, either metallic or nonmetallic, in the past, have been limited to the instrumentation available for these measurements. In the past, optical microscopy, replica transmission electron microscopy, electron or X-ray diffraction and optical or X-ray spectroscopy have provided the means of surface characterization. Actually, some of these techniques are not purely surface; the depth of penetration may be a few thousands of an inch. Within the last five years, instrumentation has been made available which now makes it practical for use to study the outer few 100A of layers and characterize it completely from a chemical, physical, and crystallographic standpoint. The scanning electron microscope (SEM) provides a means of viewing the surface of a material in situ to magnifications as high as 250,000X.

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