Evolution from superatomic Au 24 Ag 20 monomers into molecular-like Au 43 Ag 38 dimeric nanoclusters

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...

Full description

Saved in:
Bibliographic Details
Published in:Chemical science (Cambridge) 2022-03, Vol.13 (9), p.2778-2782
Main Authors: Xu, Jiayu, Xiong, Lin, Cai, Xiao, Tang, Shisi, Tang, Ancheng, Liu, Xu, Pei, Yong, Zhu, Yan
Format: Article
Language:English
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary: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 Au Au into dimeric Au Ag nanoclusters: Au Ag inherits the kernel frameworks from parent Au Ag but exhibits distinct surface motifs; Au Ag is racemic, while Au Ag is mesomeric. Importantly, the evolution from monomers to dimers opens up exciting opportunities exploring currently unknown properties of monomeric and dimeric alloy nanoclusters. The Au Ag clusters show superatomic electronic configurations, while Au Ag clusters have molecular-like characteristics. Furthermore, monomeric Au Ag catalysts readily outperform dimeric Au Ag catalysts in the catalytic reduction of CO .
ISSN:2041-6520
2041-6539
DOI:10.1039/D1SC07178E