TY - JOUR
T1 - High catalytic activity of heteropolynuclear cyanide complexes containing cobalt and platinum ions
T2 - Visible-light driven water oxidation
AU - Yamada, Yusuke
AU - Oyama, Kohei
AU - Gates, Rachel
AU - Fukuzumi, Shunichi
N1 - Publisher Copyright:
© 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
PY - 2015/5/4
Y1 - 2015/5/4
N2 - A near-stoichiometric amount of O2 was evolved as observed in the visible-light irradiation of an aqueous buffer (pH 8) containing [RuII(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 CoIII or PtIV 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. A platinum assist: A near-stoichiometric amount of O2 was evolved as observed in the visible-light irradiation of an aqueous buffer (pH 8) containing [RuII(2,2'-bipyridine)3] as a photosensitizer, Na2S2O8 as a sacrificial electron acceptor, and a heteropolynuclear cyanide complex as a water-oxidation catalyst. The synergistic effect between the Co and Pt ions was confirmed to facilitate the water-oxidation catalysis by the heteropolynuclear complex.
AB - A near-stoichiometric amount of O2 was evolved as observed in the visible-light irradiation of an aqueous buffer (pH 8) containing [RuII(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 CoIII or PtIV 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. A platinum assist: A near-stoichiometric amount of O2 was evolved as observed in the visible-light irradiation of an aqueous buffer (pH 8) containing [RuII(2,2'-bipyridine)3] as a photosensitizer, Na2S2O8 as a sacrificial electron acceptor, and a heteropolynuclear cyanide complex as a water-oxidation catalyst. The synergistic effect between the Co and Pt ions was confirmed to facilitate the water-oxidation catalysis by the heteropolynuclear complex.
KW - cobalt
KW - heterogeneous catalysis
KW - platinum
KW - structure elucidation
KW - water oxidation
UR - http://www.scopus.com/inward/record.url?scp=84929465722&partnerID=8YFLogxK
U2 - 10.1002/anie.201501116
DO - 10.1002/anie.201501116
M3 - Article
C2 - 25866203
AN - SCOPUS:84929465722
SN - 1433-7851
VL - 54
SP - 5613
EP - 5617
JO - Angewandte Chemie - International Edition
JF - Angewandte Chemie - International Edition
IS - 19
ER -