Evolution from superatomic Au24Ag20 monomers into molecular-like Au43Ag38 dimeric nanoclusters

Jiayu Xu; Lin Xiong; Xiao Cai; Shisi Tang; Ancheng Tang; Xu Liu; Yong Pei; Yan Zhu

doi:10.1039/D1SC07178E

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Evolution from superatomic Au₂₄Ag₂₀ monomers into molecular-like Au₄₃Ag₃₈ dimeric nanoclusters†

Jiayu Xu,‡^a Lin Xiong,‡^b Xiao Cai,^a Shisi Tang,^a Ancheng Tang,^a Xu Liu,

^a Yong Pei

*^b and Yan Zhu

*^a

Author affiliations

* Corresponding authors

^a School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
E-mail: zhuyan@nju.edu.cn

^b Department of Chemistry, Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, Xiangtan University, Xiangtan 411105, China
E-mail: ypnku78@gmail.com

Abstract

Hierarchical assembly of nanoparticles has been attracting wide interest, as advanced functionalities can be achieved. However, the ability to manipulate structural evolution of artificial nanoparticles into assemblies with atomic precision has been largely unsuccessful. Here we report the evolution from monomeric Au₂₄Au₂₀ into dimeric Au₄₃Ag₃₈ nanoclusters: Au₄₃Ag₃₈ inherits the kernel frameworks from parent Au₂₄Ag₂₀ but exhibits distinct surface motifs; Au₂₄Ag₂₀ is racemic, while Au₄₃Ag₃₈ is mesomeric. Importantly, the evolution from monomers to dimers opens up exciting opportunities exploring currently unknown properties of monomeric and dimeric alloy nanoclusters. The Au₂₄Ag₂₀ clusters show superatomic electronic configurations, while Au₄₃Ag₃₈ clusters have molecular-like characteristics. Furthermore, monomeric Au₂₄Ag₂₀ catalysts readily outperform dimeric Au₄₃Ag₃₈ catalysts in the catalytic reduction of CO₂.

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Article information

DOI: https://doi.org/10.1039/D1SC07178E
Article type: Edge Article
Submitted: 24 Dec 2021
Accepted: 06 Feb 2022
First published: 17 Feb 2022
This article is Open Access

All publication charges for this article have been paid for by the Royal Society of Chemistry

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Chem. Sci., 2022,13, 2778-2782

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Evolution from superatomic Au₂₄Ag₂₀ monomers into molecular-like Au₄₃Ag₃₈ dimeric nanoclusters

J. Xu, L. Xiong, X. Cai, S. Tang, A. Tang, X. Liu, Y. Pei and Y. Zhu, Chem. Sci., 2022, 13, 2778 DOI: 10.1039/D1SC07178E

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