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

被引：10
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.
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页数：8
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