Light-driven water oxidation with a molecular tetra-cobalt(III) cubane cluster

被引：91

作者：

La Ganga, Giuseppina ^{[1
,2
]}

Puntoriero, Fausto ^{[1
,2
]}

Campagna, Sebastiano ^{[1
,2
]}

Bazzan, Irene ^{[3
,4
]}

Berardi, Serena ^{[3
,4
]}

Bonchio, Marcella ^{[3
,4
]}

Sartorel, Andrea ^{[3
,4
]}

Natali, Mirco ^{[5
,6
]}

Scandola, Franco ^{[5
,6
]}

机构：

[1] Univ Messina, Dipartimento Chim Inorgan Chim Analit & Chim Fis, I-98166 Messina, Italy

[2] Ctr Interuniv Convers Chim Energia Solare, Sez Messina, I-98166 Messina, Italy

[3] Univ Padua, Dept Chem Sci, I-35131 Padua, Italy

[4] ITM CNR, I-35131 Padua, Italy

[5] Sez Ferrara, Dipartimento Chim, I-49100 Ferrara, Italy

[6] Sez Ferrara, Ctr Interuniv Convers Chim Energia Solare, I-49100 Ferrara, Italy

来源：

FARADAY DISCUSSIONS | 2012年 / 155卷

关键词：

OXYGEN-EVOLVING CATALYST; VISIBLE-LIGHT; CRYSTAL-STRUCTURE; ELECTRON-TRANSFER; PHOTOSYSTEM-II; COMPLEXES; EVOLUTION; METAL; CHEMISTRY; ENERGY;

D O I：

10.1039/c1fd00093d

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Photoinduced water oxidation to molecular oxygen takes place in systems made of [Ru(bpy)(3)](2+) (bpy 2,2'-bipyridine) as the photosensitizer, [Co4O4(O2CMe)(4)(py)(4)] (py pyridine) as the molecular catalyst and Na2S2O8 as the sacrificial electron acceptor. The photochemical quantum yield of the process reaches the outstanding value of 30% and depends on pH and catalyst concentration. Transient absorption spectroscopy experiments aimed to clarify the first events of the photocatalytic process are also reported.

引用

页码：177 / 190

页数：14

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