Elucidation of the Electrochemical Reaction Mechanism in MFe2O4(M=Ni, Co) Conversion-Type Negative Electrode Systems by using In Situ X-ray Absorption Spectroscopy

2015 ◽  
Vol 2 (10) ◽  
pp. 1510-1518 ◽  
Author(s):  
Geethu Balachandran ◽  
Ditty Dixon ◽  
Natalia Bramnik ◽  
Aiswarya Bhaskar ◽  
Murat Yavuz ◽  
...  
Keyword(s):  
Reaction Mechanism ◽  
Absorption Spectroscopy ◽  
Electrochemical Reaction ◽  
Negative Electrode ◽  
X Ray ◽  
Co Conversion ◽  
X Ray Absorption ◽  
Electrode Systems

scholarly journals An X-ray absorption spectroscopy investigation of the coordination environment of electrogenerated Ni(ii)-pseudohalide complexes arising from the anodic polarization of Ni electrodes in DMSO solutions of NCO−, NCS− and NCSe− ions

RSC Advances ◽  
2015 ◽  
Vol 5 (20) ◽  
pp. 15709-15718 ◽  
Author(s):  
Kethsiri H. K. L. Alwis ◽  
Bridget Ingham ◽  
Michael R. Mucalo ◽  
Peter Kappen ◽  
Chris Glover
Keyword(s):  
Absorption Spectroscopy ◽  
Coordination Sphere ◽  
Anodic Polarization ◽  
Metal Electrode ◽  
Coordination Environment ◽  
X Ray ◽  
X Ray Absorption ◽  
Electrode Systems

EXAFS/XANES measurements combined with IR spectroelectrochemistry directly probe in situ the coordination sphere of electrogenerated ions in metal electrode systems so obviating the need to isolate ions unchanged from the electrolyte for analysis.

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.

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