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.

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

scholarly journals X-Ray Absorption Studies of Ti/Polymer and Cr/Polymer Interfaces

1993 ◽  
Vol 304 ◽  
Author(s):  
R. L. Opila ◽  
K. Konstadinidis ◽  
A. O. Ibidunni ◽  
A. J. Davenport ◽  
H. S. Isaacs
Keyword(s):  
Absorption Spectroscopy ◽  
Polymer Surfaces ◽  
Polymer Interfaces ◽  
Final Reaction Product ◽  
X Ray ◽  
Metal Atoms ◽  
Absorption Studies ◽  
In Situ Heating ◽  
X Ray Absorption

AbstractThe interface formed between metals, Ti and Cr, and polymers, epoxy and triazine, have been studied, nondestructively, using x-ray absorption spectroscopy. The metals were sputtered onto the polymer surfaces. Titanium reacts extensively, up to Ti thicknesses of 100 Å while Cr remains primarily metallic. In situ heating at 200°C increases the extent of reaction for both metals. Heating has a greater effect on metal/epoxy interfaces than metal/triazine. Titanium and Cr were ion implanted into the polymer in order to determine the interactions of isolated metal atoms with the polymer. Titanium and Cr appear to form oxides as the final reaction product, and the Ti is tetrahedrally coordinated.

X-ray absorption spectroscopy study of the electronic structure and local coordination of 1st row transition metal-promoted Chevrel-phase sulfides

2019 ◽  
Vol 72 (8) ◽  
pp. 1322-1335 ◽  
Author(s):  
Joseph T. Perryman ◽  
Forrest P. Hyler ◽  
Jessica C. Ortiz-Rodríguez ◽  
Apurva Mehta ◽  
Ambarish R. Kulkarni ◽  
...  
Keyword(s):  
Electronic Structure ◽  
Transition Metal ◽  
Absorption Spectroscopy ◽  
Spectroscopy Study ◽  
X Ray ◽  
Local Coordination ◽  
Chevrel Phase ◽  
X Ray Absorption

Electronic Structure of Transition Metal−Cysteine Complexes from X-ray Absorption Spectroscopy

2008 ◽  
Vol 112 (15) ◽  
pp. 4770-4778 ◽  
Author(s):  
Bonnie O. Leung ◽  
Farideh Jalilehvand ◽  
Robert K. Szilagyi
Keyword(s):  
Electronic Structure ◽  
Transition Metal ◽  
Absorption Spectroscopy ◽  
X Ray ◽  
X Ray Absorption

scholarly journals In situ X-ray emission and high-resolution X-ray absorption spectroscopy applied to Ni-based bimetallic dry methane reforming catalysts

Nanoscale ◽  
2020 ◽  
Vol 12 (28) ◽  
pp. 15185-15192
Author(s):  
Abbas Beheshti Askari ◽  
Mustafa al Samarai ◽  
Nozomu Hiraoka ◽  
Hirofumi Ishii ◽  
Lukas Tillmann ◽  
...  
Keyword(s):  
Electronic Structure ◽  
Catalytic Activity ◽  
High Resolution ◽  
Absorption Spectroscopy ◽  
Methane Reforming ◽  
X Ray ◽  
Reforming Catalyst ◽  
Reforming Catalysts ◽  
X Ray Absorption

The effect of cobalt on the catalytic activity of a NiCoO dry methane reforming catalyst was investigated by in situ XES and HERFD XAS. Co is shown to hamper the reduction of the Ni in the NiCoO catalyst by modulation of its electronic structure.

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