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Published May 4, 2015 | public
Journal Article Open

High Catalytic Activity of Heteropolynuclear Cyanide Complexes Containing Cobalt and Platinum Ions: Visible-Light Driven Water Oxidation


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, Na_2S_2O_8 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.

Additional Information

© 2015 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim. Received: February 5, 2015; Revised: March 9, 2015; Published online: April 13, 2015. This work was supported by an ALCA project from JST (to S.F.) and Grants-in-Aid (Nos. 24350069 and 25600025 to Y.Y.) from the Ministry of Education, Culture, Sports, Science and Technology (Japan).

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August 22, 2023
August 22, 2023