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Nano Research 2024, 17(5): 3533-3546 https://doi.org/10.1007/s12274-023-6312-8
Review Article | Issue | Published: 16 December 2023

Unlocking single-atom catalysts via amorphous substrates

Show Author's Information Bohua Sun1,2,§,  Mingyuan Xu4,§,  Xiaoxia Li4,§,  Baohong Zhang4,  Rui Hao6,  Xiaoyu Fan5( ),  Binbin Jia3( ),  Dingshun She1,2( )
School of Engineering and Technology, China University of Geosciences (Beijing), Beijing 100083, China
Zhengzhou Institute, China University of Geosciences (Beijing), Zhengzhou 451283, China
College of Materials and Chemical Engineering, Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials, China Three Gorges University, Yichang 443002, China
School of Chemistry, Beihang University, Beijing 100191, China
Chinese Academy of Sciences (CAS) Key Laboratory of Nanosystem and Hierarchy Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, China
National Engineering Research Center of Nonferrous Metals, Materials and Products for New Energy, China GRINM Group Co., Ltd., Beijing 100088, China

§ Bohua Sun, Mingyuan Xu, and Xiaoxia Li contributed equally to this work.

Keywords:
catalysis, synthetic strategy, single-atoms, amorphous substrate
Topics:
Nanocatalysts
Cite this article:
Sun B, Xu M, Li X, et al. Unlocking single-atom catalysts via amorphous substrates. Nano Research, 2024, 17(5): 3533-3546. https://doi.org/10.1007/s12274-023-6312-8
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Abstract Full text About this article

Single-atom catalysts (SACs) reveal great potential for application in catalysis due to their fully exposed active sites. In general, single atoms (SAs) and the coordination substrates need to have strong interactions or charge transfer to ensure the atomic dispersion, which requires the selection of a suitable substrate to stabilize the target atoms. Recent studies have demonstrated that amorphous materials with abundant defects and coordinatively unsaturated sites can be used as substrates for more efficient capturing SAs, further enhancing the catalytic performance. In this review, we discuss recent research progress of SAs loaded on amorphous substrates for enhanced catalytic activity. Firstly, we summarize the commonly used amorphous substrates for stabilizing SAs. Subsequently, we present several advanced applications of amorphous SACs in the field of catalysis, including electrocatalysis and photocatalysis. And then, we also clarify the synergistic mechanism between SAs and amorphous substrate on catalytic process. Finally, we summarize the challenges with our personal views and provide a critical outlook on how amorphous SACs continue to evolve.


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About this article

Unlocking single-atom catalysts via amorphous substrates

Show Author's information Bohua Sun1,2,§, Mingyuan Xu4,§, Xiaoxia Li4,§, Baohong Zhang4, Rui Hao6, Xiaoyu Fan5( ), Binbin Jia3( ), Dingshun She1,2( )
School of Engineering and Technology, China University of Geosciences (Beijing), Beijing 100083, China
Zhengzhou Institute, China University of Geosciences (Beijing), Zhengzhou 451283, China
College of Materials and Chemical Engineering, Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials, China Three Gorges University, Yichang 443002, China
School of Chemistry, Beihang University, Beijing 100191, China
Chinese Academy of Sciences (CAS) Key Laboratory of Nanosystem and Hierarchy Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, China
National Engineering Research Center of Nonferrous Metals, Materials and Products for New Energy, China GRINM Group Co., Ltd., Beijing 100088, China

§ Bohua Sun, Mingyuan Xu, and Xiaoxia Li contributed equally to this work.

Abstract

Single-atom catalysts (SACs) reveal great potential for application in catalysis due to their fully exposed active sites. In general, single atoms (SAs) and the coordination substrates need to have strong interactions or charge transfer to ensure the atomic dispersion, which requires the selection of a suitable substrate to stabilize the target atoms. Recent studies have demonstrated that amorphous materials with abundant defects and coordinatively unsaturated sites can be used as substrates for more efficient capturing SAs, further enhancing the catalytic performance. In this review, we discuss recent research progress of SAs loaded on amorphous substrates for enhanced catalytic activity. Firstly, we summarize the commonly used amorphous substrates for stabilizing SAs. Subsequently, we present several advanced applications of amorphous SACs in the field of catalysis, including electrocatalysis and photocatalysis. And then, we also clarify the synergistic mechanism between SAs and amorphous substrate on catalytic process. Finally, we summarize the challenges with our personal views and provide a critical outlook on how amorphous SACs continue to evolve.

Keywords: catalysis, synthetic strategy, single-atoms, amorphous substrate

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Publication history
Copyright
Acknowledgements

Publication history

Received: 11 October 2023
Revised: 02 November 2023
Accepted: 02 November 2023
Published: 16 December 2023
Issue date: May 2024

Copyright

© Tsinghua University Press 2023

Acknowledgements

Acknowledgements

This work was supported by the National Natural Science Foundation of China (No. 22305051), the National Key Research and Development Project (No. 2023YFF0611100), the Fundamental Research Funds for the Central Universities (No. 265QZ2022002) and the Natural Science Foundation of Henan Province (No. 232300421104), the Funding of GRIMAT Engineering Institute (No. 5222201), and the National Key R&D Program of China (No. 2021YFB4001301-2)

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