Citation: Hui Ning, Dewen Song, Minjun Zhou, Xinze Bi, Mingwang Wang, Shipeng Zhang, Rui Zhou, Jiwei Wang, Dan Lu, Xiao Tang, Xiaoshan Wang, Jianling Zhang, Mingbo Wu. Rapid construction of self-supported nanoarray electrode of ultrathin-carbon coated Bi nanospheres for active and stable CO₂ electroreduction[J]. Chinese Chemical Letters, ;2026, 37(8): 111191. doi: 10.1016/j.cclet.2025.111191 shu

Rapid construction of self-supported nanoarray electrode of ultrathin-carbon coated Bi nanospheres for active and stable CO₂ electroreduction

Hui Ning ^{a, *,} ,
Dewen Song ^{a, c, *,} ,
Minjun Zhou ^a ,
Xinze Bi ^a ,
Mingwang Wang ^a ,
Shipeng Zhang ^a ,
Rui Zhou ^a ,
Jiwei Wang ^a ,
Dan Lu ^a ,
Xiao Tang ^a ,
Xiaoshan Wang ^d ,
Jianling Zhang ^{b, *,} ,
Mingbo Wu ^{a, *,}

a.
State Key Laboratory of Heavy Oil Processing, College of Chemical Engineering, College of New Energy, Institute of New Energy, School of Materials Science and Engineering, China University of Petroleum (East China), Qingdao 266580, China
b.
Institute of Chemistry, Chinese Academy of Science, Beijing 100190, China
c.
Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education, School of Chemistry, Sun Yat-sen University, Guangzhou 510006, China
d.
College of Materials Science and Engineering, College of Physics, Weihai Innovation Research Institute, Qingdao University, Qingdao 266071, China

ninghui@upc.edu.cn

songdw@mail.sysu.edu.cn

zhangjl@iccas.ac.cn

wumb@upc.edu.cn

Received Date: 12 February 2025
Revised Date: 3 April 2025
Accepted Date: 9 April 2025
Available Online: 10 April 2025

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The CO₂ electroreduction is a valuable technology towards carbon neutrality but facing great challenge in fabricating efficient and stable electrode. Here we propose the construction of self-supported nanoarray electrode of ultrathin carbon-coated Bi nanospheres through a self-assembly and Joule heating method for high-efficiency electrocatalytic CO₂ reduction. The electrode combines the advantages of facilitating electron transfer, accelerating the subsequent electro-proton coupling step in CO₂ reduction process and protecting Bi nanoparticles from aggregation or electrochemical corrosion. The highest Faraday efficiency for formic acid in a solid-state electrolyte cell reaches 95.46% with a partial current density of 119.10 mA/cm² and remains above 90% for 110 h. This route for assembling self-supported nanoarray electrode is rapid, facile, and can be employed in the large-scale fabrication of industrial electrodes in the future.
- Nanoarray electrode,
- Joule heating,
- Self-supporting,
- Formic acid,
- Bismuth
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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

Rapid construction of self-supported nanoarray electrode of ultrathin-carbon coated Bi nanospheres for active and stable CO2 electroreduction

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通讯作者: 陈斌, bchen63@163.com

Rapid construction of self-supported nanoarray electrode of ultrathin-carbon coated Bi nanospheres for active and stable CO₂ electroreduction