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Nano Research 2022, 15(4): 3283-3289 https://doi.org/10.1007/s12274-021-3978-7
Research Article | Issue | Published: 18 December 2021

In situ construction of thiol-silver interface for selectively electrocatalytic CO2 reduction

Show Author's Information Ying Chen1,  Feng Hu1,4( ),  Yanan Hao1,  Yonghan Wang1,  Yaoyi Xie1,  Hui Wang1,  Lijie Yin1,  Deshuang Yu1,  Hongchao Yang2,  Jun Ma1,  Dan Kai3,  Linlin Li1,  Shengjie Peng1( )
College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
CAS Key Laboratory of Nano-Bio Interface, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China
Institute of Materials Research and Engineering (IMRE), Singapore 138634, Singapore
Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), College of Chemistry, Nankai University, Tianjin 300071, China
Keywords:
electrochemical CO2 reduction , molecule-mediated catalyst, thiols, Ag nanoparticle
Topics:
Supercapacitor
An erratum to this article is available online at https://doi.org/10.1007/s12274-022-4484-2
Cite this article:
Chen Y, Hu F, Hao Y, et al. In situ construction of thiol-silver interface for selectively electrocatalytic CO2 reduction. Nano Research, 2022, 15(4): 3283-3289. https://doi.org/10.1007/s12274-021-3978-7
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Abstract Electronic supplementary material About this article

Electrochemical CO2 reduction (ECR) is one of the most effective methods to obtain carbonaceous chemicals and reduce greenhouse gases passingly under the ambient condition. However, efficient electrocatalysts featured with high selectivity and stability are still lacking. A novel molecule-mediated Ag electrocatalyst with capped thiols is rationally designed for high-performance ECR. The thiol-capped and carbon-supported Ag nanostructures (Ag-TC) are formed by in situ electrochemical reduction from three-dimentional (3D) Ag-thiol metal-organic compound with cysteine as the anchor agent and carbon source. Ag-TC exhibits high selectivity and stability for CO2 conversion to CO (86.7%), which is more catalytically active than that of common Ag nanoparticles. The function of thiols for ECR is proved by replacing cysteine with alanine without thiol group. Meanwhile, alternatively replacing and removing the surface molecules on the Ag foil further demonstrate the effct of thiols. This work enlightens the promise of in situ construction method for molecule capped metal electrocatalyst towards selective and stable ECR.

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Acknowledgements

Publication history

Received: 15 October 2021
Revised: 01 November 2021
Accepted: 02 November 2021
Published: 18 December 2021
Issue date: April 2022

Copyright

© Tsinghua University Press and Springer-Verlag GmbH Germany, part of Springer Nature 2021

Acknowledgements

Acknowledgements

This work was supported by the National Natural Science Foundation of China (No. 2210011636), the Natural Science Foundation of Jiangsu Province (No. BK20210311), China Postdoctoral Science Foundation (Nos. 2021M691561 and 2021T140319), Jiangsu Planned Projects for Postdoctoral Research Funds (No. 2021K547C), CAS Key Laboratory of Nano-Bio Interface (No. 21NBI02), and the Fundamental Research Funds for the Central Universities (No. NS2021037).

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