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Noble-metal single-atoms in thermocatalysis, electrocatalysis, and photocatalysis

机译：热透析，电催化和光催化中贵金属单原子

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摘要

Noble metals have received widespread applications in the field of catalysis due to their unique intrinsic properties and irreplaceable catalytic activities. However, in consideration of the scarcity and high cost, maximizing the efficiency of noble metals for catalysis is of prime importance in the societal pursuit of sustainable energy. In recent years, noble-metal single-atom catalysts (NMSACs) with well-defined structures have gained great research attention due to their maximum atom utilization efficiency (100%), distinct active sites and high catalytic activity and selectivity. This review comprehensively discusses the recent advancements in NMSACs for catalytic applications. Firstly, various fabrication strategies for NMSACs are introduced with a focus on how to effectively stabilize single noble-metal atoms on appropriate substrates and prevent their migration and aggregation. Subsequently, some advanced characterization techniques are presented to precisely probe the noble-metal active sites at the atomic level, which is critical to investigate the structure of NMSACs. Furthermore, we provide a comprehensive summary of various types of NMSACs for the applications of thermocatalysis, electrocatalysis, and photocatalysis, with special emphasis on the structure-activity relationships and the underlying catalytic mechanisms. Finally, the remaining challenges and future opportunities are provided for guiding the rational design of advanced NMSACs toward various catalytic processes in the chemical transformation and energy conversion fields.
机译：由于其独特的内在特性和不可替代的催化活动，贵金属在催化领域获得了广泛的应用。然而，考虑到稀缺性和高成本，最大化呼吸分析的贵金属的效率是对可持续能源的社会追求的主要重要性。近年来，由于其最大原子利用效率（100％），不同的活性位点和高催化活性和选择性，具有明确定义的结构的贵金属单原子催化剂（NMSACs）已经获得了很大的研究。本综述全面探讨了NMSACS催化应用的最新进步。首先，介绍了NMSACS的各种制造策略，重点是如何在适当的基材上有效地稳定单贵金属原子并防止它们的迁移和聚集。随后，提出了一些高级表征技术以精确地探测原子水平的贵金属活性位点，这对于研究NMSAC的结构至关重要。此外，我们提供了各种类型的NMSAC综述，用于热常数，电常放和光催化的应用，特别强调结构 - 活性关系和潜在的催化机制。最后，提供了剩余的挑战和未来的机会，用于指导高级NMSAC对化学转化和能量转换场中各种催化过程的理性设计。

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  • 来源
    《Energy & environmental science》 |2021年第5期|2954-3009|共56页
  • 作者

    Zhang Feifei; Zhu Yinlong; Lin Qian; Zhang Lian; Zhang Xiwang; Wang Huanting;

  • 作者单位

    Monash Univ Dept Chem Engn Clayton Vic 3800 Australia;

    Monash Univ Dept Chem Engn Clayton Vic 3800 Australia;

    Monash Univ Dept Chem Engn Clayton Vic 3800 Australia;

    Monash Univ Dept Chem Engn Clayton Vic 3800 Australia;

    Monash Univ Dept Chem Engn Clayton Vic 3800 Australia;

    Monash Univ Dept Chem Engn Clayton Vic 3800 Australia;

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