The authors would like to thank Ursula Cornelissen, Bastian Dietl, Kathrin Gerwien, Joachim Gripp, Jannes Ophey, Enrique Quiroga, Monika Schneeweiß, Christian Stoltenberg, and Adam Wutkowski (all CAU Kiel) for experimental support. M.M.N. thanks the Ministry of Science and the National Elite Foundation of Iran for a travel grant. This work was financed by the Fonds der Chemischen Industrie (Liebig fellowship for P.K.).
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Communication
Calcium Manganese(III) Oxides (CaMn2O4⋅x H2O) as Biomimetic Oxygen-Evolving Catalysts†
Article first published online: 22 FEB 2010
DOI: 10.1002/anie.200906745
Copyright © 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Additional Information
How to Cite
Najafpour, M., Ehrenberg, T., Wiechen, M. and Kurz, P. (2010), Calcium Manganese(III) Oxides (CaMn2O4⋅x H2O) as Biomimetic Oxygen-Evolving Catalysts. Angew. Chem. Int. Ed., 49: 2233–2237. doi: 10.1002/anie.200906745
- †
Publication History
- Issue published online: 10 MAR 2010
- Article first published online: 22 FEB 2010
- Manuscript Received: 30 NOV 2009
Funded by
- Fonds der Chemischen Industrie
Keywords:
- bioinorganic chemistry;
- heterogeneous catalysis;
- manganese;
- oxidation;
- water chemistry
Biomimetic and efficient: Mixed calcium manganese(III) oxides (see structure; Ca green, Mn red, O white) with elemental compositions and structures mimicking the active site of photosystem II were found to be highly active catalysts for the oxidation of water to molecular oxygen. As for PS II, the presence of Ca2+ greatly enhances the catalyst performance in comparison to the related manganese-only system Mn2O3.