In situ X-ray absorption spectroscopy—A probe of cathode materials for Li-ion cells

2006 ◽  
Vol 241 (1-2) ◽  
pp. 4-19 ◽  
Author(s):  
Aniruddha Deb ◽  
Elton J. Cairns
Keyword(s):  
Absorption Spectroscopy ◽  
Cathode Materials ◽  
X Ray ◽  
Li Ion ◽  
X Ray Absorption

scholarly journals In situ Fe K-edge X-ray absorption spectroscopy study during cycling of Li2FeSiO4 and Li2.2Fe0.9SiO4 Li ion battery materials

2015 ◽  
Vol 3 (14) ◽  
pp. 7314-7322 ◽  
Author(s):  
Alexander W. Brownrigg ◽  
Gavin Mountjoy ◽  
Alan V. Chadwick ◽  
Maria Alfredsson ◽  
Wim Bras ◽  
...  
Keyword(s):  
Absorption Spectroscopy ◽  
Li Ion Battery ◽  
Spectroscopy Study ◽  
Battery Materials ◽  
X Ray ◽  
Local Structures ◽  
Li Ion ◽  
X Ray Absorption

The valence and local structures of Fe during battery cycling of Li2FeSiO4 and Li2.2Fe0.9SiO4 are studied by in situ (XAS) measurements.

scholarly journals Material/element-dependent fluorescence-yield modes on soft X-ray absorption spectroscopy of cathode materials for Li-ion batteries

AIP Advances ◽  
2016 ◽  
Vol 6 (3) ◽  
pp. 035105 ◽  
Author(s):  
Daisuke Asakura ◽  
Eiji Hosono ◽  
Yusuke Nanba ◽  
Haoshen Zhou ◽  
Jun Okabayashi ◽  
...  
Keyword(s):  
Absorption Spectroscopy ◽  
Cathode Materials ◽  
Fluorescence Yield ◽  
Li Ion Batteries ◽  
X Ray ◽  
Material Element ◽  
Li Ion ◽  
X Ray Absorption

Structure and Electrochemistry of Novel Silver Metal Oxyfluoride Perovskite: Cathode Materials for High Volumetric Energy Storage

2008 ◽  
Vol 1127 ◽  
Author(s):  
W. Tong ◽  
W-S. Yoon ◽  
G. G. Amatucci
Keyword(s):  
Energy Storage ◽  
Absorption Spectroscopy ◽  
Powder Diffraction ◽  
Elemental Analysis ◽  
Cathode Materials ◽  
Rate Capability ◽  
X Ray ◽  
X Ray Absorption ◽  
Silver Metal

ABSTRACTA novel electroactive nanostructured silver molybdenum oxyfluoride (SMOF) perovskite was successfully synthesized via mechanochemistry through the use of AgFx and MoO3. The structure of the SMOF perovskite has been examined utilizing X-ray powder diffraction (XRD) combined with X-ray absorption spectroscopy (XAS) and elemental analysis. The SMOF perovskite exhibited a very good electrochemical activity. A detailed in-situ electrochemical study by XRD and XAS was carried out. Finally, preliminary work on fabrication of a metallic Ag2F phase and optimization of the rate capability of SMOF perovskite is presented.

Application of In Situ X-ray Absorption Spectroscopy to Study Dilute Chromium Ions in a Molten Chloride Salt

2019 ◽  
Author(s):  
Jisue Moon ◽  
Carter Abney ◽  
Dmitriy Dolzhnikov ◽  
James M. Kurley ◽  
Kevin A. Beyer ◽  
...  
Keyword(s):  
Absorption Spectroscopy ◽  
Local Structure ◽  
Chloride Salt ◽  
X Ray ◽  
Molten Chloride ◽  
Stable Species ◽  
Higher Temperature ◽  
Cr Concentration ◽  
X Ray Absorption

The local structure of dilute CrCl<sub>3</sub> in a molten MgCl<sub>2</sub>:KCl salt was investigated by <i>in situ</i> x-ray absorption spectroscopy (XAS) at temperatures from room temperature to 800<sup>o</sup>C. This constitutes the first experiment where dilute Cr speciation is explored in a molten chloride salt, ostensibly due to the compounding challenges arising from a low Cr concentration in a matrix of heavy absorbers at extreme temperatures. CrCl<sub>3</sub> was confirmed to be the stable species between 200 and 500<sup>o</sup>C, while mobility of metal ions at higher temperature (>700<sup>o</sup>C) prevented confirmation of the local structure.

Revealing the structural transformation of rutile RuO2via in situ X-ray absorption spectroscopy during the oxygen evolution reaction

2019 ◽  
Vol 48 (21) ◽  
pp. 7122-7129 ◽  
Author(s):  
Chia-Jui Chang ◽  
You-Chiuan Chu ◽  
Hao-Yu Yan ◽  
Yen-Fa Liao ◽  
Hao Ming Chen
Keyword(s):  
Oxygen Evolution ◽  
Structural Transformation ◽  
Absorption Spectroscopy ◽  
Oxygen Evolution Reaction ◽  
The State ◽  
X Ray ◽  
Alkaline Conditions ◽  
X Ray Absorption ◽  
State Of Art

The state-of-art RuO2 catalyst for the oxygen evolution reaction (OER) is measured by using in situ X-ray absorption spectroscopy (XAS) to elucidate the structural transformation during catalyzing the reaction in acidic and alkaline conditions.

Simple flow through reaction cells for in situ transmission and fluorescence x-ray-absorption spectroscopy of heterogeneous catalysts

2006 ◽  
Vol 77 (2) ◽  
pp. 023105 ◽  
Author(s):  
Simon R. Bare ◽  
George E. Mickelson ◽  
Frank S. Modica ◽  
Andrzej Z. Ringwelski ◽  
N. Yang
Keyword(s):  
Absorption Spectroscopy ◽  
Heterogeneous Catalysts ◽  
X Ray ◽  
Flow Through ◽  
X Ray Absorption ◽  
Simple Flow
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