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Issue 24, 2012
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Directed self-assembly of hetero-nanoparticles using a polymer single crystal template

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Abstract

Hetero-nanoparticles represent a new class of nanomaterials exhibiting intriguing multifunctional and collective properties which could find applications in photovoltaics, fuel-cell catalysis, medical imaging and therapy, and electronics. In this paper, we report a novel polymer-single-crystal-templating (PSCryT) approach for the controllable synthesis of hetero-nanoparticles. 2D polymer single crystals are used to direct self-assembly of nanoparticles, yielding bicomponent Fe3O4–Pt, Fe3O4–Au, SiO2–Pt, and SiO2–Au and tricomponent Fe3O4–Pt–Au hetero-nanoparticles with fine-tuned structures. The as-synthesized hetero-nanoparticles possess collective properties derived from the interface between different particles. For example, compared with pure Pt nanoparticles, Fe3O4–Pt showed enhanced catalytic activity when used in 4-nitrophenol reduction reaction. The PSCryT method is simple, versatile and can be performed in a rational, step-wise manner under mild synthesis conditions. It therefore provides a great opportunity for the development of designer hetero-nanoparticles targeted for various applications.

Graphical abstract: Directed self-assembly of hetero-nanoparticles using a polymer single crystal template

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Publication details

The article was received on 21 Sep 2012, accepted on 25 Oct 2012 and first published on 26 Oct 2012


Article type: Communication
DOI: 10.1039/C2NR32866F
Citation: Nanoscale, 2012,4, 7641-7645
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    Directed self-assembly of hetero-nanoparticles using a polymer single crystal template

    H. Zhang, B. Dong, T. Zhou and C. Y. Li, Nanoscale, 2012, 4, 7641
    DOI: 10.1039/C2NR32866F

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