Effect of the coordination environment of Cu in Cu2O on the electroreduction of CO2to ethylene

被引：31

作者：

Wu, Yahui ^{[1
,2
]}

Chen, Chunjun ^{[1
,2
]}

Yan, Xupeng ^{[1
,2
]}

Liu, Shoujie ^{[3
]}

Chu, Mengen ^{[4
]}

Wu, Haihong ^{[4
]}

Ma, Jun ^{[1
]}

Han, Buxing ^{[1
,2
,4
,5
]}

机构：

[1] Chinese Acad Sci, CAS Res Educ Ctr Excellence Mol Sci, Beijing Natl Lab Mol Sci, Inst Chem,CAS Key Lab Colloid & Interface & Therm, Beijing 100190, Peoples R China

[2] Univ Chinese Acad Sci, Sch Chem & Chem Engn, Beijing 100049, Peoples R China

[3] Chem & Chem Engn Guangdong Lab, Shantou 515063, Peoples R China

[4] East China Normal Univ, Sch Chem & Mol Engn, Shanghai Key Lab Green Chem & Chem Proc, Shanghai 200062, Peoples R China

[5] Huairou Natl Comprehens Sci Ctr, Phys Sci Lab, 5 Yanqi East Second St, Beijing 101400, Peoples R China

来源：

GREEN CHEMISTRY | 2020年 / 22卷 / 19期

基金：

中国国家自然科学基金;

关键词：

CO2; REDUCTION; ELECTROCHEMICAL REDUCTION; CARBON-DIOXIDE; C-2; PRODUCTS; ELECTRODES; NANOSHEETS; CATALYSTS; SURFACE; SITES;

D O I：

10.1039/d0gc02842h

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Cuprous oxide catalysts have attracted much attention because they exhibited high selectivity of C2+ products in CO(2)electroreduction, but the effect of the structure of catalysts on the reaction needs to be studied further. Herein, we studied the effect of the coordination number (CN) of Cu-Cu and Cu-O in Cu2O on the catalytic performance of CO(2)electrocatalytic reduction to C2H4. It was demonstrated that Cu-Cu CN and Cu-O CN, which could be tuned by changing the crystal surface and size of Cu2O, influenced the current density and faradaic efficiency (FE) of C(2)H(4)significantly. At suitable CNs, the FE of C(2)H(4)could reach 50.6% with a current density of 24.5 mA cm(-2).

引用

页码：6340 / 6344

页数：5

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