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Review Article

In situ identification of active sites during electrocatalytic hydrogen evolution

Dongge Wang1,2Juanxia Wu1,2Liying Jiao3( )Liming Xie1,2( )
CAS Key Laboratory of Standardization and Measurement for Nanotechnology, National Center for Nanoscience and Technology, Beijing 100190, China
University of Chinese Academy of Sciences, Beijing 100049, China
Key Laboratory of Organic Optoelectronics and Molecular Engineering of the Ministry of Education, Department of Chemistry, Tsinghua University, Beijing 100084, China
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Graphical Abstract

We summarized recent progress on the in situ identification of active sites on nano-catalysts in hydrogen evolution reaction, with the emphasis on the versatile microscopic and spectroscopic methods developed for this purpose.

Abstract

The rational design of efficient, low cost, and durable catalysts is critical for the industrial applications of electrocatalytic hydrogen production. A key step towards the structure design of high-performance catalysts for hydrogen evolution reaction (HER) relies on the in situ identification of the catalytic active sites in the process of HER, which is of great challenge. In this review, we summarize the recent advances on the in situ investigation of the active sites on low dimensional catalysts for HER. We highlight the characterization techniques used for this purpose, including scanning electrochemical microscopy (SECM), scanning electrochemical cell microscopy (SECCM), electrochemical scanning tunneling microscopy (EC-STM), in situ liquid phase transmission electron microscopy (LP-TEM), and in situ spectroscopic tools. We conclude with an overview of the main technical limitations for the current approaches and give an outlook to future opportunities in this emerging field.

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Nano Research
Pages 12910-12918
Cite this article:
Wang D, Wu J, Jiao L, et al. In situ identification of active sites during electrocatalytic hydrogen evolution. Nano Research, 2023, 16(12): 12910-12918. https://doi.org/10.1007/s12274-023-5686-y
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Received: 08 March 2023
Revised: 23 March 2023
Accepted: 23 March 2023
Published: 13 May 2023
© Tsinghua University Press 2023
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