The synergistic catalysis effect within a dinuclear nickel complex for efficient and selective electrocatalytic reduction of CO2 to CO

Developing cheap and earth-abundant catalysts for an efficient and selective reduction of CO2 is a promising approach to cut down the increasing emissions of CO2 and obtain valuable fuels/chemicals simultaneously. Here, we present a dinuclear nickel complex, [Ni2L1](ClO4)4 (1, L1 = 1,2-bis((5,7-dime...

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Published in:Green chemistry : an international journal and green chemistry resource : GC 2018, Vol.20 (4), p.798-803
Main Authors: Li-Ming, Cao, Hai-Hua Huang, Jia-Wei, Wang, Di-Chang, Zhong, Tong-Bu, Lu
Format: Article
Language:English
Subjects:
Benzene
Carbon dioxide
Carbon monoxide
Catalysis
Catalysts
Chemical reduction
Density functional theory
Electrochemistry
Emissions control
Green chemistry
Nickel
Nuclear fuels
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Summary:Developing cheap and earth-abundant catalysts for an efficient and selective reduction of CO2 is a promising approach to cut down the increasing emissions of CO2 and obtain valuable fuels/chemicals simultaneously. Here, we present a dinuclear nickel complex, [Ni2L1](ClO4)4 (1, L1 = 1,2-bis((5,7-dimethyl-1,4,8,11-tetraazacyclotetradecan-6-yl)methyl)benzene), which shows an excellent performance for the electrocatalytic reduction of CO2 to CO, with a Faradaic efficiency of 95%, and turnover number (TON) and turnover frequency (TOF) values of 4.1 × 106 and 190.0 s−1, respectively. Electrochemical experiments and density functional theory (DFT) calculations revealed that the excellent catalytic performance of 1 is attributed to the synergistic catalysis effect between two Ni centers within 1.
ISSN:1463-9262
1463-9270
DOI:10.1039/c7gc03451b