Selectivity control of CO versus HCOO-production in the visible-light-driven catalytic reduction of CO2 with two cooperative metal sites (vol 2, pg 801, 2019)

被引：3

作者：

Guo, Zhenguo ^{[1
,2
,3
]}

Chen, Gui ^{[1
]}

Cometto, Claudio ^{[4
]}

Ma, Bing ^{[4
]}

Zhao, Hongyan ^{[2
,3
]}

Groizard, Thomas ^{[4
]}

Chen, Lingjing ^{[1
]}

Fan, Hongbo ^{[1
]}

Man, Wai-Lun ^{[5
]}

Yiu, Shek-Man ^{[1
]}

Lau, Kai-Chung ^{[2
,3
]}

Lau, Tai-Chu ^{[2
,3
]}

Robert, Marc ^{[4
]}

机构：

[1] Dongguan Univ Technol, Sch Environm & Civil Engn, Dongguan, Guangdong, Peoples R China

[2] City Univ Hong Kong, Dept Chem, Kowloon, Hong Kong, Peoples R China

[3] City Univ Hong Kong, Inst Mol Funct Mat, Kowloon, Hong Kong, Peoples R China

[4] Univ Paris, Lab Electrochim Mol, CNRS, Paris, France

[5] Hong Kong Baptist Univ, Dept Chem, Kowloon Tong, Hong Kong, Peoples R China

来源：

NATURE CATALYSIS | 2019年 / 2卷 / 09期

基金：

美国国家科学基金会;

关键词：

67;

D O I：

10.1038/s41929-019-0349-9

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：

It is highly desirable to discover molecular catalysts with controlled selectivity for visible-light-driven CO2 reduction to fuels. In the design of catalysts employing earth-abundant metals, progress has been made for CO production, but formate generation has been observed more rarely. Here, we report a binuclear Co complex bearing a bi-quaterpyridine ligand that can selectively reduce CO2 to HCOO− or CO under visible light irradiation. Selective formate production (maximum of 97%) was obtained with a turnover number of up to 821 in basic acetonitrile solution. Conversely, in the presence of a weak acid, CO2 reduction affords CO with high selectivity (maximum of 99%) and a maximum turnover number of 829. The catalytic process is controlled by the two Co atoms acting synergistically, and the selectivity can be steered towards the desired product by simply changing the acid co-substrate. © 2019, The Author(s), under exclusive licence to Springer Nature Limited.

引用

页码：830 / 830

页数：1