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.).
Calcium Manganese(III) Oxides (CaMn2O4⋅x H2O) as Biomimetic Oxygen-Evolving Catalysts†
Article first published online: 22 FEB 2010
Copyright © 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Angewandte Chemie International Edition
Volume 49, Issue 12, pages 2233–2237, March 15, 2010
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
- Issue published online: 10 MAR 2010
- Article first published online: 22 FEB 2010
- Manuscript Received: 30 NOV 2009
- Fonds der Chemischen Industrie
- bioinorganic chemistry;
- heterogeneous catalysis;
- 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.