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Open AccessReview

Gold Nanoclusters as Electrocatalysts for Energy Conversion

1
Department of Applied Chemistry, Faculty of Science, Tokyo University of Science, 1–3 Kagurazaka, Shinjuku-ku, Tokyo 162–8601, Japan
2
Photocatalysis International Research Center, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278−8510, Japan
*
Author to whom correspondence should be addressed.
Nanomaterials 2020, 10(2), 238; https://doi.org/10.3390/nano10020238
Received: 11 January 2020 / Revised: 23 January 2020 / Accepted: 27 January 2020 / Published: 29 January 2020
Gold nanoclusters (Aun NCs) exhibit a size-specific electronic structure unlike bulk gold and can therefore be used as catalysts in various reactions. Ligand-protected Aun NCs can be synthesized with atomic precision, and the geometric structures of many Aun NCs have been determined by single-crystal X-ray diffraction analysis. In addition, Aun 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 Aun NCs with properties that surpass those of conventional catalysts using the obtained design guidelines. With these expectations, catalyst research using Aun NCs as a model catalyst has been actively conducted in recent years. This review focuses on the application of Aun NCs as an electrocatalyst and outlines recent research progress.
Keywords: gold; cluster; catalyst; hydrogen evolution reaction; oxygen evolution reaction; oxygen reduction reaction; water splitting; fuel cells; alloy; ligand-protected gold; cluster; catalyst; hydrogen evolution reaction; oxygen evolution reaction; oxygen reduction reaction; water splitting; fuel cells; alloy; ligand-protected
MDPI and ACS Style

Kawawaki, T.; Negishi, Y. Gold Nanoclusters as Electrocatalysts for Energy Conversion. Nanomaterials 2020, 10, 238.

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