Local structure change around Co and Fe ions in (La0.6Sr0.4)(Co0.2Fe0.8)O3− as revealed by in–situ X–ray absorption spectroscopy and first–principles calculation

The local structure of dilute CrCl3 in a molten MgCl2:KCl salt was investigated by in situ x-ray absorption spectroscopy (XAS) at temperatures from room temperature to 800oC. 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. CrCl3 was confirmed to be the stable species between 200 and 500oC, while mobility of metal ions at higher temperature (>700oC) prevented confirmation of the local structure.

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Local structure around Fe ions on multiferroic Pb(Fe1/2Nb1/2)O3 ceramics probed by x-ray absorption spectroscopy

Applied Physics Letters ◽

10.1063/1.4709490 ◽

2012 ◽

Vol 100 (17) ◽

pp. 172907 ◽

Cited By ~ 8

Author(s):

A. Mesquita ◽

B. M. Fraygola ◽

V. R. Mastelaro ◽

J. A. Eiras

Keyword(s):

Absorption Spectroscopy ◽

Local Structure ◽

X Ray ◽

X Ray Absorption ◽

Fe Ions

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Characterization of Polysulfide Radicals Present in an Ether-Based Electrolyte of a Lithium-Sulfur Battery During Initial Discharge Using In Situ X-Ray Absorption Spectroscopy Experiments and First-Principles Calculations

Advanced Energy Materials ◽

10.1002/aenm.201500285 ◽

2015 ◽

Vol 5 (16) ◽

pp. 1500285 ◽

Cited By ~ 70

Author(s):

Kevin H. Wujcik ◽

Tod A. Pascal ◽

C. D. Pemmaraju ◽

Didier Devaux ◽

Wayne C. Stolte ◽

...

Keyword(s):

Absorption Spectroscopy ◽

First Principles ◽

First Principles Calculations ◽

X Ray ◽

Initial Discharge ◽

Sulfur Battery ◽

X Ray Absorption ◽

Lithium Sulfur

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

10.26434/chemrxiv.9959807.v1 ◽

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 CrCl3 in a molten MgCl2:KCl salt was investigated by in situ x-ray absorption spectroscopy (XAS) at temperatures from room temperature to 800oC. 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. CrCl3 was confirmed to be the stable species between 200 and 500oC, while mobility of metal ions at higher temperature (>700oC) prevented confirmation of the local structure.

Download Full-text