Efficient Light-Driven Carbon-Free Cobalt-Based Molecular Catalyst for Water Oxidation

被引：316

作者：

Huang, Zhuangqun

Luo, Zhen

Geletii, Yurii V.

Vickers, James W.

Yin, Qiushi

Wu, David

Hou, Yu

Ding, Yong

Song, Jie

Musaev, Djamaladdin G.

Hill, Craig L. ^{[1
]}

Lian, Tianquan

机构：

[1] Emory Univ, Dept Chem, Atlanta, GA 30322 USA

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2011年 / 133卷 / 07期

关键词：

PHOTOINDUCED ELECTRON-TRANSFER; RUTHENIUM DIIMINE COMPLEXES; EXCITED-STATE; OXYGEN; LIGAND; DIOXYGEN; INSIGHTS; PLANET; DIMER;

D O I：

10.1021/ja109681d

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The abundant-metal-based polyoxometalate complex [Co-4(H2O)(2)(PW9O34)(2)](10-) is a hydrolytically and oxidatively stable, homogeneous, and efficient molecular catalyst for the visible-light-driven catalytic oxidation of water. Using a sacrificial electron acceptor and photosensitizer, it exhibits a high (30%) photon-to-O-2 yield and a large turnover number (> 220, limited solely by depletion of the sacrificial electron acceptor) at pH 8. The photocatalytic performance of this catalyst is superior to that of the previously reported precious-metal-based polyoxometalate water oxidation catalyst [{Ru4O4(OH)(2)(H2O)(4)}(gamma-SiW10O36)(2)](10-).

引用

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页码：2068 / 2071

页数：4

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