Journal
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Volume 54, Issue 19, Pages 5613-5617Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201501116
Keywords
cobalt; heterogeneous catalysis; platinum; structure elucidation; water oxidation
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Funding
- JST
- Ministry of Education, Culture, Sports, Science and Technology (Japan) [24350069, 25600025]
- Grants-in-Aid for Scientific Research [15K14223, 25600025] Funding Source: KAKEN
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A near-stoichiometric amount of O-2 was evolved as observed in the visible-light irradiation of an aqueous buffer (pH 8) containing [Ru-II(2,2'-bipyridine)(3)] as a photosensitizer, Na2S2O8 as a sacrificial electron acceptor, and a heteropolynuclear cyanide complex as a water-oxidation catalyst. The heteropolynuclear cyanide complexes exhibited higher catalytic activity than a polynuclear cyanide complex containing only Co-III or Pt-IV ions as C-bound metal ions. The origin of the synergistic effect between Co and Pt ions is discussed in relation to electronic and local atomic structures of the complexes.
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