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.

Determining the coordination environment and electronic structure of polymer-encapsulated cobalt phthalocyanine under electrocatalytic CO2 reduction conditions using in situ X-Ray absorption spectroscopy

2020 ◽  
Vol 49 (45) ◽  
pp. 16329-16339
Author(s):  
Yingshuo Liu ◽  
Aniruddha Deb ◽  
Kwan Yee Leung ◽  
Weixuan Nie ◽  
William S. Dean ◽  
...  
Keyword(s):  
Electronic Structure ◽  
Absorption Spectroscopy ◽  
Co2 Reduction ◽  
Cobalt Phthalocyanine ◽  
Coordination Environment ◽  
X Ray ◽  
Axial Ligation ◽  
Absorbance Spectroscopy ◽  
X Ray Absorption

In situ X-ray absorbance spectroscopy measurements show that encapsulating cobalt phthalocyanine within coordinating polymers leads to axial ligation of Co and results in enhanced rates for electrocatalytic CO2 reduction.

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

scholarly journals Unraveling the Structure of Mn-Promoted Co/TiO2 Fischer-Tropsch Catalysts by In Situ X-Ray Absorption Spectroscopy

2007 ◽  
Author(s):  
Didier Grandjean ◽  
Fernando Morales ◽  
Ad Mens ◽  
Frank M. F. de Groot ◽  
Bert M. Weckhuysen
Keyword(s):  
Absorption Spectroscopy ◽  
Fischer Tropsch ◽  
X Ray ◽  
X Ray Absorption

Genesis of Pt Clusters in Reverse Micelles Investigated by in Situ X-ray Absorption Spectroscopy

2004 ◽  
Vol 108 (24) ◽  
pp. 8148-8152 ◽  
Author(s):  
Yin W. Tsai ◽  
Yu L. Tseng ◽  
Loka S. Sarma ◽  
Din G. Liu ◽  
Jyh F. Lee ◽  
...  
Keyword(s):  
Absorption Spectroscopy ◽  
Reverse Micelles ◽  
X Ray ◽  
X Ray Absorption
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