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
收藏
页码：177 / 190
页数：14
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