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Issue 2, 2019
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Unusual fcc-structured Ag10 kernels trapped in Ag70 nanoclusters

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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

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Publication details

The article was received on 31 Jul 2018, accepted on 13 Oct 2018 and first published on 18 Oct 2018


Article type: Edge Article
DOI: 10.1039/C8SC03396J
Chem. Sci., 2019,10, 564-568
  • Open access: Creative Commons BY license
    All publication charges for this article have been paid for by the Royal Society of Chemistry

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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

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