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

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

Weakened CO adsorption and enhanced structural integrity of a stabilized Pt skin/PtCo hydrogen oxidation catalyst analysed by in situ X-ray absorption spectroscopy

2017 ◽  
Vol 7 (24) ◽  
pp. 6124-6131 ◽  
Author(s):  
Guoyu Shi ◽  
Hiroshi Yano ◽  
Donald A. Tryk ◽  
Masashi Matsumoto ◽  
Hajime Tanida ◽  
...  
Keyword(s):  
Absorption Spectroscopy ◽  
Structural Integrity ◽  
Hydrogen Oxidation ◽  
Co Adsorption ◽  
Oxidation Catalyst ◽  
X Ray ◽  
X Ray Absorption ◽  
Ptco Alloy

In situ X-ray absorption spectroscopy has afforded a detailed structural and electronic characterization of a newly developed stabilized Pt-skin/PtCo alloy nanoparticle catalyst for CO-tolerant H2 oxidation.

Interrogating the photogenerated Ir(iv) state of a water oxidation catalyst using ultrafast optical and X-ray absorption spectroscopy

2013 ◽  
Vol 4 (10) ◽  
pp. 3863 ◽  
Author(s):  
Michael T. Vagnini ◽  
Michael W. Mara ◽  
Michael R. Harpham ◽  
Jier Huang ◽  
Megan L. Shelby ◽  
...  
Keyword(s):  
Absorption Spectroscopy ◽  
Water Oxidation ◽  
Oxidation Catalyst ◽  
X Ray ◽  
Ultrafast Optical ◽  
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.

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.

Identification of intermediates of a molecular ruthenium catalyst for water oxidation using in situ electrochemical X-ray absorption spectroscopy

2021 ◽  
Author(s):  
Lin Li ◽  
Huacai Yan ◽  
Fusheng Li ◽  
Qingyu Kong ◽  
Chunze Yuan ◽  
...  
Keyword(s):  
Dicarboxylic Acid ◽  
Absorption Spectroscopy ◽  
Water Oxidation ◽  
Electrochemical Cell ◽  
Acid Catalyst ◽  
Ruthenium Catalyst ◽  
Energy Dispersive ◽  
X Ray ◽  
X Ray Absorption

This is the first study on a Ru(bda) (bda: 2,2′-bipyridine-6,6′-dicarboxylic acid) catalyst in solution using a home-built electrochemical cell, in combination with an energy-dispersive X-ray absorption spectroscopy setup. The oxidation...

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.

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