Homogeneous Electrocatalytic Water Oxidation by a Rigid Macrocyclic Copper(II) Complex

被引：18

作者：

Wang, Jiawei ^{[1
]}

Huang, Haihua ^{[1
]}

Lu, Tongbu ^{[1
,2
]}

机构：

[1] Sun Yat Sen Univ, Sch Chem, MOE Key Lab Bioinorgan & Synthet Chem, Guangzhou 510275, Guangdong, Peoples R China

[2] Tianjin Univ Technol, Inst New Energy Mat & Low Carbon Technol, Sch Mat Sci & Engn, Tianjin 300384, Peoples R China

来源：

CHINESE JOURNAL OF CHEMISTRY | 2017年 / 35卷 / 05期

基金：

中国国家自然科学基金;

关键词：

water oxidation; homogeneous catalyst; electrocatalysis; copper complex; ASTERISK IRIDIUM COMPLEXES; OXYGEN-EVOLVING CATALYST; SINGLE-SITE; POLYPYRIDINE COMPLEX; RUTHENIUM CATALYST; HIGHLY EFFICIENT; NEUTRAL PH; ROBUST; PHOSPHATE;

D O I：

10.1002/cjoc.201600669

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A copper(II) complex with a rigid macrocyclic ligand has been synthesized and utilized as a homogeneous electrocatalyst for water oxidation in sodium phosphate buffer at pH 12.0. By using a glassy carbon electrode in a 3 h electrolysis, a high current density of 1.3-1.4 mA/cm(2) and a turn-over number of 4 can be obtained with 1.0 mmol center dot L-1 of the copper catalyst at an overpotential of 750 mV. Kinetic studies revealed that the electrocatalysis with this complex is a single-site catalysis with proton-coupled electron transfers. Finally, its possible catalytic mechanism was tentatively proposed.

引用

页码：586 / 590

页数：5

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