Issue 2, 2019

Unusual fcc-structured Ag10 kernels trapped in Ag70 nanoclusters

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 (λem = 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.

Graphical abstract: Unusual fcc-structured Ag10 kernels trapped in Ag70 nanoclusters

Supplementary files

Article information

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
Creative Commons BY license

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

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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