首页|Plasma-assisted synthesis of porous bismuth nanosheets for electrocatalytic CO2-to-formate reduction

Plasma-assisted synthesis of porous bismuth nanosheets for electrocatalytic CO2-to-formate reduction

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The electrochemical carbon dioxide reduction(eCO2RR)to formate,driven by clean energy,is a promising approach for producing renewable chemicals and high-value fuels.Despite its potential,further develop-ment faces challenges due to limitations in electrocatalytic activity and durability,especially for non-noble metal-based catalysts.Here,naturally abundant bismuth-based nanosheets that can effectively drive CO2-to-formate electrocatalytic reduction are prepared using the plasma-activated Bi2Se3 followed by a reduction process.Thus-obtained plasma-activated Bi nanosheets(P-BiNS)feature ultrathin struc-tures and high surface areas.Such nanostructures ensure the P-BiNS with outstanding eCO2RR catalytic performance,highlighted by the current density of over 80 mA cm-2 and a formate Faradic efficiency of＞90％.Furthermore,P-BiNS catalysts demonstrate excellent durability and stability without deactivation following over 50 h of operation.The selectivity for formate production is also studied by density func-tional theory(DFT)calculations,validating the importance and efficacy of the stabilization of intermedi-ates(*OCHO)on the P-BiNS surfaces.This study provides a facile plasma-assisted approach for developing high-performance and low-cost electrocatalysts.

Plasma-assisted synthesisPlasma activationBismuth nanosheetCO2RRFormate

Liangping Xiao、Qizheng Zheng、Rusen Zhou、Sifan Liu、Yifan Zhao、Yadong Zhao、Renwu Zhou、Kostya Ken Ostrikov

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State Key Laboratory of Electrical Insulation and Power Equipment,Centre for Plasma Biomedicine,School of Electrical Engineering,Xi'an Jiaotong University,Xi'an 710049,Shaanxi,China

School of Chemistry and Physics,QUT Centre for Materials Science,Queensland University of Technology(QUT),Brisbane,QLD 4000,Australia

Department of Physics,Research Institute for Biomimetics and Soft Matter,Fujian Provincial Key Laboratory for Soft Functional Materials,Jiujiang Research Institute,Xiamen University,Xiamen 361005

Department of Physics,Research Institute for Biomimetics and Soft Matter,Fujian Provincial Key Laboratory for Soft Functional Materials,Jiujiang Research Institute,Xiamen University,Xiamen 361005,Fujian,China

Department of Biomaterials,College of Materials,Xiamen University,Xiamen 361005,Fujian,China

School of Food and Pharmacy,Zhejiang Ocean University,Zhoushan 316022,Zhejiang,China

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Jiujiang Research Institute at Xiamen University

2024

10.1016/j.jechem.2024.02.023

能源化学
中国科学院大连化学物理研究所 中国科学院成都有机化学研究所

能源化学

CSTPCDEI
影响因子：0.654
ISSN：2095-4956
年,卷(期)：2024.94(7)