Issue 1, 2014
From the journal:

Chemical Communications

Shining light on integrity of a tetracobalt-polyoxometalate water oxidation catalyst by X-ray spectroscopy before and after catalysis†‡

Rafael Schiwon,a   Katharina Klingan,b   Holger Dau*b  and  Christian Limberg*a  

* Corresponding authors

a Humboldt-Universität zu Berlin, Institut für Chemie, Brook-Taylor-Str. 2, 12489 Berlin, Germany
E-mail: christian.limberg@chemie.hu-berlin.de

b Freie Universität Berlin, FB Physik, Arnimallee 14, 14195 Berlin, Germany
E-mail: holger.dau@fu-berlin.de

Abstract

Modification of the Co-oxo cores of cobalt-polyoxometalate water oxidation catalysts is detectable by X-ray absorption spectroscopy (XAS) as demonstrated by comparison of Na10[Co4(H2O)2(PW9O34)2] (1) and Na17[((Co(H2O))Co2PW9O34)2(PW6O26)] (2). XAS reveals the integrity of 1 uncompromised by oxidant-driven water oxidation, which proceeds without formation of catalytic cobalt oxide.

Graphical abstract: Shining light on integrity of a tetracobalt-polyoxometalate water oxidation catalyst by X-ray spectroscopy before and after catalysis

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Article information

DOI
https://doi.org/10.1039/C3CC46629A
Article type
Communication
Submitted
29 Aug 2013
Accepted
08 Oct 2013
First published
11 Nov 2013

Chem. Commun., 2014,50, 100-102

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Shining light on integrity of a tetracobalt-polyoxometalate water oxidation catalyst by X-ray spectroscopy before and after catalysis

R. Schiwon, K. Klingan, H. Dau and C. Limberg, Chem. Commun., 2014, 50, 100 DOI: 10.1039/C3CC46629A

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