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.

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.

Monitoring a CuO gas sensor at work: an advanced in situ X-ray absorption spectroscopy study

2015 ◽  
Vol 17 (28) ◽  
pp. 18761-18767 ◽  
Author(s):  
D. P. Volanti ◽  
A. A. Felix ◽  
P. H. Suman ◽  
E. Longo ◽  
J. A. Varela ◽  
...  
Keyword(s):  
Gas Sensor ◽  
Absorption Spectroscopy ◽  
Working Conditions ◽  
Local Structure ◽  
Spectroscopy Study ◽  
Electrical Measurements ◽  
Edge Structure ◽  
X Ray ◽  
X Ray Absorption

X-ray absorption near edge structure (XANES) and electrical measurements were used to elucidate the local structure and electronic changes of copper(ii) oxide (CuO) nanostructures under working conditions.

Local structure of LiNi0.5Mn0.5O2 cathode material probed by in situ x-ray absorption spectroscopy

2006 ◽  
Vol 99 (6) ◽  
pp. 063701 ◽  
Author(s):  
Aniruddha Deb ◽  
Uwe Bergmann ◽  
Stephen P. Cramer ◽  
Elton J. Cairns
Keyword(s):  
Cathode Material ◽  
Absorption Spectroscopy ◽  
Local Structure ◽  
X Ray ◽  
Lini0.5Mn0.5O2 Cathode Material ◽  
X Ray Absorption

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.

Chemical State and Local Structure around Titanium Atoms in NaAlH4Doped with TiCl3Using X-ray Absorption Spectroscopy

2004 ◽  
Vol 108 (42) ◽  
pp. 16372-16376 ◽  
Author(s):  
Aline Léon ◽  
Oliver Kircher ◽  
Jörg Rothe ◽  
Maximilian Fichtner
Keyword(s):  
Absorption Spectroscopy ◽  
Local Structure ◽  
Chemical State ◽  
X Ray ◽  
State And Local ◽  
X Ray Absorption
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