In-situ regeneration of Bi0 active site to renew surface activation for long-term stable and efficient CO2-to-formate electrosynthesis

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外文摘要：CO2-to-formate electrosynthesis with high selectivity and stability has been a long-sought objective.Unfortunately,most catalysts undergo structural and valence state changes due to surface oxidation dur-ing operation or storage,resulting in decreased catalytic performance.Herein,we report a efficient and stable Biln@Cu-foam electrode through the in-situ regeneration of Bi0 active sites to renew the surface activation.The electronic structure of Bi site can be regulated by introducing In,thereby enhancing the adsorption strength of*OCHO.The optimized electrode exhibits over 90％FEformate at a wide potential window(-0.9--2.2 V),and formation rate for 3.15 mM cm-1 h-1.Especially,the electrode can maintain the high performance at continuously electrolysis for more than 300 h,or for more than 50 cycles,even repeated operation and storage for more than 2 years.This work provides a promising candidate and new insight to construct industrially viable stable Bi-based catalyst for formate electrosynthesis.

外文关键词：

In-situ regenerationStabilityFormateBismutheCO2RR

作者：

Haichuan He、Congcheng Yang、Liu Deng、Li Luo、Yahui Jiang、Liqiang Wang、Yi Zhang、Minghui Yang、You-Nian Liu

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作者单位：

Hunan Provincial Key Laboratory of Micro & Nano Materials Interface Science,College of Chemistry and Chemical Engineering,Central South University,Changsha 410083,Hunan,China

Henan Province Industrial Technology Research Institute of Resources and Materials,School of Material Science and Engineering,Zhengzhou University,Zhengzhou 450001,Henan,China

College of Material,Chemistry and Chemical Engineering,Hangzhou Normal University,Hangzhou 311121,Zhejiang,China

出版年：

2024

DOI：

10.1016/j.jechem.2024.07.059

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)：2024.99(12)