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

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DOI: https://doi.org/10.1039/C8SC03396J
Article type: Edge Article
Submitted: 31 জুলাই 2018
Accepted: 13 অক্টো. 2018
First published: 18 অক্টো. 2018
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., 2019,10, 564-568

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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.

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