Kawawaki Tokuhisa, Negishi Yuichi
Department of Applied Chemistry, Faculty of Science, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan.
Photocatalysis International Research Center, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan.
Nanomaterials (Basel). 2020 Jan 29;10(2):238. doi: 10.3390/nano10020238.
Gold nanoclusters (Au NCs) exhibit a size-specific electronic structure unlike bulk gold and can therefore be used as catalysts in various reactions. Ligand-protected Au NCs can be synthesized with atomic precision, and the geometric structures of many Au NCs have been determined by single-crystal X-ray diffraction analysis. In addition, Au NCs can be doped with various types of elements. Clarification of the effects of changes to the chemical composition, geometric structure, and associated electronic state on catalytic activity would enable a deep understanding of the active sites and mechanisms in catalytic reactions as well as key factors for high activation. Furthermore, it may be possible to synthesize Au NCs with properties that surpass those of conventional catalysts using the obtained design guidelines. With these expectations, catalyst research using Au NCs as a model catalyst has been actively conducted in recent years. This review focuses on the application of Au NCs as an electrocatalyst and outlines recent research progress.
金纳米团簇（Au NCs）具有与块状金不同的尺寸特异性电子结构，因此可用于各种反应的催化剂。配体保护的金纳米团簇可以以原子精度合成，并且许多金纳米团簇的几何结构已通过单晶X射线衍射分析确定。此外，金纳米团簇可以掺杂各种类型的元素。阐明化学成分、几何结构和相关电子态的变化对催化活性的影响，将有助于深入理解催化反应中的活性位点和机制以及高活化的关键因素。此外，利用获得的设计指南，有可能合成出性能超过传统催化剂的金纳米团簇。基于这些期望，近年来以金纳米团簇作为模型催化剂的催化剂研究一直在积极开展。本综述重点关注金纳米团簇作为电催化剂的应用，并概述了最近的研究进展。
