scholarly journals A soft molecular 2Fe–2As precursor approach to the synthesis of nanostructured FeAs for efficient electrocatalytic water oxidation

2020 ◽  
Vol 11 (43) ◽  
pp. 11834-11842
Author(s):  
Rodrigo Beltrán-Suito ◽  
Viktoria Forstner ◽  
J. Niklas Hausmann ◽  
Stefan Mebs ◽  
Johannes Schmidt ◽  
...  
Keyword(s):  
Absorption Spectroscopy ◽  
Water Oxidation ◽  
Ex Situ ◽  
X Ray ◽  
Active Structure ◽  
First Time ◽  
X Ray Absorption

A molecularly derived FeAs has been used as an electro(pre)catalyst for an efficient alkaline OER for the first time and subsequently, its active structure has been determined by quasi in situ X-ray absorption spectroscopy and ex situ methods.

Direct Observation of Active Nickel Oxide Cluster in Nickel–Borate Electrocatalyst for Water Oxidation by In Situ O K-Edge X-ray Absorption Spectroscopy

2015 ◽  
Vol 119 (33) ◽  
pp. 19279-19286 ◽  
Author(s):  
Masaaki Yoshida ◽  
Yosuke Mitsutomi ◽  
Takehiro Mineo ◽  
Masanari Nagasaka ◽  
Hayato Yuzawa ◽  
...  
Keyword(s):  
Nickel Oxide ◽  
Absorption Spectroscopy ◽  
Direct Observation ◽  
Water Oxidation ◽  
Oxide Cluster ◽  
X Ray ◽  
X Ray Absorption

X-Ray Absorption Spectroscopy as an in-situ Tool in Materials Science

1997 ◽  
Vol 502 ◽  
Author(s):  
T. Ressler ◽  
Joe Wong ◽  
W. Metz
Keyword(s):  
Absorption Spectroscopy ◽  
Materials Science ◽  
Ex Situ ◽  
Structural Studies ◽  
Time Resolved ◽  
X Ray ◽  
Complementary Techniques ◽  
X Ray Absorption ◽  
Established Technique

ABSTRACTIn addition to being an established technique for ex-situ structural studies, x-ray absorption spectroscopy (XAS) has recently been realized to be a powerful tool for in-situ time-resolved investigations in materials science. This paper describes two complementary techniques: quick-scanning EXAFS (QEXAFS) and energy-dispersive XAS (DXAS) which offer time resolution in the seconds and milliseconds range, respectively. Formation of a heterogeneous catalyst from a solid-state reaction of a precursor is presented as an example of a time-resolved XAS application.

Characterization of Mo—V—W Mixed Oxide Catalysts by ex situ and in situ X-Ray Absorption Spectroscopy.

ChemInform ◽  
2005 ◽  
Vol 36 (27) ◽  
Author(s):  
Guido Schimanke ◽  
Manfred Martin ◽  
Jan Kunert ◽  
Herbert Vogel
Keyword(s):  
Absorption Spectroscopy ◽  
Mixed Oxide ◽  
Oxide Catalysts ◽  
Ex Situ ◽  
X Ray ◽  
Mixed Oxide Catalysts ◽  
X Ray Absorption

In situ X-ray absorption spectroscopy of transition metal based water oxidation catalysts

2017 ◽  
Vol 46 (1) ◽  
pp. 102-125 ◽  
Author(s):  
Christina H. M. van Oversteeg ◽  
Hoang Q. Doan ◽  
Frank M. F. de Groot ◽  
Tanja Cuk
Keyword(s):  
Electronic Structure ◽  
Transition Metal ◽  
Absorption Spectroscopy ◽  
Water Oxidation ◽  
Oxidation Catalysts ◽  
X Ray ◽  
Absorption Studies ◽  
X Ray Absorption

X-ray absorption studies of the geometric and electronic structure of primarily heterogeneous Co, Ni, and Mn based water oxidation catalysts are reviewed.

The Key RuV=O Intermediate of Site-Isolated Mononuclear Water Oxidation Catalyst Detected by in Situ X-ray Absorption Spectroscopy

2017 ◽  
Vol 140 (1) ◽  
pp. 451-458 ◽  
Author(s):  
Dmitry Lebedev ◽  
Yuliana Pineda-Galvan ◽  
Yuki Tokimaru ◽  
Alexey Fedorov ◽  
Nicolas Kaeffer ◽  
...  
Keyword(s):  
Absorption Spectroscopy ◽  
Water Oxidation ◽  
Oxidation Catalyst ◽  
X Ray ◽  
X Ray Absorption

In Situ Characterisation of Model UK Nuclear Waste Glasses by X-ray Absorption Spectroscopy Under Process Conditions

2008 ◽  
Vol 1107 ◽  
Author(s):  
Neil C. Hyatt ◽  
Andrew J. Connelly ◽  
Martin C. Stennett ◽  
Francis R. Livens ◽  
Robert L. Bilsborrow
Keyword(s):  
Absorption Spectroscopy ◽  
Nuclear Waste ◽  
Process Conditions ◽  
Network Modifier ◽  
X Ray ◽  
Reversible Transformation ◽  
Modifier Cation ◽  
First Time ◽  
X Ray Absorption

AbstractThe local co-ordination environment of Zr in a model alkali borosilicate glass, of relevance to nuclear waste immobilisation, was studied by in situ X-ray absorption spectroscopy between 25 – 1060°C. Analysis of Zr K-edge XANES spectra, in comparison with those of well characterised standards, demonstrated, for the first time, the reversible transformation of ZrO6 to ZrO7 co-ordination polyhedra at high temperature. This observation was rationalised on the basis of the combined effects of network modifier cation diffusion and thermal expansion.

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