Halide-modulated Hollow-Fiber Cu penetration electrode boosts Ampere-Level CO2 electroreduction to multicarbon products

被引：6

作者：

Zhu, Chang ^{[1
,2
,3
]}

Wu, Gangfeng ^{[1
,2
]}

Mao, Jianing ^{[1
,2
,4
]}

Chen, Aohui ^{[1
,5
]}

Zhao, Yonghui ^{[1
]}

Feng, Guanghui ^{[1
,2
,3
]}

Wei, Yiheng ^{[1
,2
]}

Liu, Xiaohu ^{[1
,5
]}

Li, Shoujie ^{[1
]}

Li, Guihua ^{[1
,2
]}

Dong, Xiao ^{[1
]}

Song, Yanfang ^{[1
,2
]}

Wei, Wei ^{[1
,2
,5
]}

Chen, Wei ^{[1
,2
]}

机构：

[1] Chinese Acad Sci, CAS Key Lab Low Carbon Convers Sci & Engn, Shanghai Adv Res Inst, Shanghai 201210, Peoples R China

[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

[3] Zhejiang Univ, Coll Chem & Biol Engn, Key Lab Biomass Chem Engn, Minist Educ, Hangzhou 310027, Peoples R China

[4] Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China

[5] ShanghaiTech Univ, Sch Phys Sci & Technol, Shanghai 201210, Peoples R China

来源：

CHEMICAL ENGINEERING JOURNAL | 2024年 / 485卷

基金：

中国博士后科学基金;

关键词：

Cu hollow fiber; CO2; electroreduction; Halide adsorption; Ampere level activity; Penetration electrode; ELECTROCHEMICAL REDUCTION; CARBON-DIOXIDE; COPPER ELECTRODE; DESIGN; ETHYLENE; FUNDAMENTALS; CATALYST;

D O I：

10.1016/j.cej.2024.150040

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Electroreduction of CO2 to chemical fuels is desirable for the economically viable use of CO2 and consumption of renewable electricity. Efficient production of C2+ on Cu-based catalysts remains a challenge. Herein, a copper hollow fiber penetration electrode with a striking C-C coupling capability by virtue of modulating the electronic states through halide ion coordinated adsorption. An efficient C2+ production with a FE of 68.8 % at 2.1 A cm-2 in 3.0 M KI and remained stable during 120-h electrolysis at 2.0 A cm-2, outperforming reported catalytic performance, which is the result of combined effect of penetration effect and halide ion coordinated adsorption, which promotes the transfer of electrons to CO2, reduces the C-C coupling energy and suppresses proton adsorption, thereby reducing hydrogen evolution.

引用

页数：8

共 58 条

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