Electrolyte Composition-Dependent Product Selectivity in CO2 Reduction with a Porphyrinic Metal-Organic Framework Catalyst

被引:11
作者
Pu, Si-Hua [1 ,2 ]
Huang, Tao [1 ]
Si, Duan-Hui [1 ]
Sun, Meng-Jiao [1 ,2 ]
Wang, Wen-Wen [1 ,3 ,4 ]
Zhang, Teng [1 ,2 ,3 ]
Cao, Rong [1 ,2 ,3 ]
机构
[1] Chinese Acad Sci, Fujian Inst Res Struct Matter, State Key Lab Struct Chem, Fuzhou 350002, Fujian, Peoples R China
[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
[3] Univ Chinese Acad Sci, Fujian Coll, Fuzhou 350002, Fujian, Peoples R China
[4] Fujian Normal Univ, Coll Chem & Mat Sci, Fuzhou 350007, Fujian, Peoples R China
基金
中国国家自然科学基金;
关键词
metal-organic framework; CO2; reduction; metalloporphyrin; electrocatalysis; CARBON-DIOXIDE; BASIS-SETS; ELECTROREDUCTION; CONVERSION; DENSITY; ELECTROCATALYSTS; DESIGN; SITES;
D O I
10.1002/anie.202411766
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
A copper porphyrin-derived metal-organic framework electrocatalyst, FICN-8, was synthesized and its catalytic activity for CO2 reduction reaction (CO2RR) was investigated. FICN-8 selectively catalyzed electrochemical reduction of CO2 to CO in anhydrous acetonitrile electrolyte. However, formic acid became the dominant CO2RR product with the addition of a proton source to the system. Mechanistic studies revealed the change of major reduction pathway upon proton source addition, while catalyst-bound hydride (*H) species was proposed as the key intermediate for formic acid production. This work highlights the importance of electrolyte composition on CO2RR product selectivity.
引用
收藏
页数:7
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