Constructing single Cu-N3 sites for CO2 electrochemical reduction over a wide potential range

被引：32

作者：

Feng, Jiaqi ^{[1
,2
]}

Zheng, Lirong ^{[3
]}

Jiang, Chongyang ^{[1
,2
]}

Chen, Zhipeng ^{[4
]}

Liu, Lei ^{[1
]}

Zeng, Shaojuan ^{[1
]}

Bai, Lu ^{[1
]}

Zhang, Suojiang ^{[1
,2
]}

Zhang, Xiangping ^{[1
,2
]}

机构：

[1] Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing Key Lab Ion Liquids Clean Proc, Beijing 100190, Peoples R China

[2] Univ Chinese Acad Sci, Coll Chem Engn, Beijing 100190, Peoples R China

[3] Chinese Acad Sci, Inst High Energy Phys, Beijing Synchrotron Radiat Facil BSRF, Beijing 100190, Peoples R China

[4] Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, CAS Key Lab Biobased Mat, Qingdao 266101, Peoples R China

来源：

GREEN CHEMISTRY | 2021年 / 23卷 / 15期

基金：

中国国家自然科学基金; 国家重点研发计划;

关键词：

EFFICIENT CO2; IONIC LIQUIDS; ELECTROREDUCTION; CATALYSTS;

D O I：

10.1039/d1gc01914g

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A Cu-N-doped carbon nanotube with an unsaturated coordination Cu atom (Cu-N-3) was fabricated and it exhibited over 90% CO faradaic efficiency (FE) in a wide potential range from -0.42 to -0.92 V. The maximum CO FE can reach 98.7% with a high CO partial current density of 234.3 mA cm(-2) in a flow cell. Theoretical calculations elucidated that the Cu-N-3 site facilitated the formation of COOH*, thereby accelerating the CO2 electrochemical reduction.

引用

页码：5461 / 5466

页数：6

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