Unusual fcc-structured Ag10 kernels trapped in Ag70 nanoclusters

Yan-Min Su; Zhi Wang; Gui-Lin Zhuang; Quan-Qin Zhao; Xing-Po Wang; Chen-Ho Tung; Di Sun

doi:10.1039/C8SC03396J

Unusual fcc-structured Ag₁₀ kernels trapped in Ag₇₀ nanoclusters†

Yan-Min Su,‡^a Zhi Wang,‡^a Gui-Lin Zhuang,

^b Quan-Qin Zhao,^a Xing-Po Wang,^a Chen-Ho Tung^a and Di Sun

*^a

Author affiliations

* Corresponding authors

^a Key Lab for Colloid and Interface Chemistry of Education Ministry, School of Chemistry and Chemical Engineering, Shandong University, Jinan, People's Republic of China
E-mail: dsun@sdu.edu.cn

^b College of Chemical Engineering and Materials Science, Zhejiang University of Technology, Hangzhou, People's Republic of China

Abstract

Controlled trapping atom-precise ultrasmall silver nanoparticles into silver nanoclusters is challenging; thus only limited progress has been made in this area. We are therefore inspired to isolate two novel silver nanoclusters, Ag₁₀@Ag₇₀ (SD/Ag80a and SD/Ag80b; SD = SunDi), where a novel fcc-structured Ag₁₀ kernel built from two single-edge opened Ag₆ octahedra by sharing one edge is trapped. The bioctahedral Ag₁₀ kernel is locked by a pair of Mo₇O₂₆¹⁰⁻ anions to form an inner Ag₁₀@(Mo₇O₂₆)₂ core which is further encapsulated by an outer Ag₇₀ shell to form three-shell Ag₁₀@(Mo₇O₂₆)₂@Ag₇₀ nanoclusters. Notably, the bioctahedral Ag₁₀ kernel has not been observed in silver nanoclusters ever before, thus representing a new embryo state of silver nanoparticles. SD/Ag80a emits in the near infrared (NIR) region (λ_em = 730 nm) at low temperature. This work will deepen our understanding on the atomic-level growth of silver nanoparticles and complicated three-shell self-assembly involving polyoxometalate (POM) and two different silver nanoclusters.

This article is part of the themed collections: In celebration of Chinese New Year and 2019 International Open Access Week Collection

Supplementary files

Article information

DOI: https://doi.org/10.1039/C8SC03396J
Article type: Edge Article
Submitted: 31 Jul 2018
Accepted: 13 Okt 2018
First published: 18 Okt 2018
This article is Open Access

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

Download Citation

Chem. Sci., 2019,10, 564-568

Permissions

Request permissions

Unusual fcc-structured Ag₁₀ kernels trapped in Ag₇₀ nanoclusters

Y. Su, Z. Wang, G. Zhuang, Q. Zhao, X. Wang, C. Tung and D. Sun, Chem. Sci., 2019, 10, 564 DOI: 10.1039/C8SC03396J

This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. You can use material from this article in other publications without requesting further permissions from the RSC, provided that the correct acknowledgement is given.

Chemical Science