Nickel-oxido structure of a water-oxidizing catalyst film

The atomic structure of an electrodeposited Ni catalyst film is dominated by extensive di-μ-oxido bridging between Ni(III/IV) ions, as revealed by X-ray absorption spectroscopy. The structure is surprisingly similar to that of an analogous Co-based film and colloidal Mn-based catalysts. Structural r...

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Veröffentlicht in:	Chemical communications (Cambridge, England) England), 2011-11, Vol.47 (43), p.11912-11914
Hauptverfasser:	Risch, Marcel, Klingan, Katharina, Heidkamp, Jonathan, Ehrenberg, David, Chernev, Petko, Zaharieva, Ivelina, Dau, Holger
Format:	Artikel
Sprache:	eng
Schlagworte:	Absorption spectroscopy Atomic structure Bridging Catalysis Catalysts Cobalt Cobalt - chemistry Electroplating Manganese Manganese Compounds - chemistry Nickel Nickel - chemistry Oxidation-Reduction Oxides - chemistry Water - chemistry X-Ray Absorption Spectroscopy X-rays
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Beschreibung
Zusammenfassung:	The atomic structure of an electrodeposited Ni catalyst film is dominated by extensive di-μ-oxido bridging between Ni(III/IV) ions, as revealed by X-ray absorption spectroscopy. The structure is surprisingly similar to that of an analogous Co-based film and colloidal Mn-based catalysts. Structural requirements for water oxidation are discussed.
ISSN:	1359-7345 1364-548X
DOI:	10.1039/c1cc15072c