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Issue 24, 2018
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Growth mechanism of core–shell PtNi–Ni nanoparticles using in situ transmission electron microscopy

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Abstract

Controlling the growth, morphology and structure of nanocrystals is fundamental to achieving facet dependent physical and chemical properties. Core–shell PtNi–Ni nanoparticles’ evolution was investigated using in situ liquid cell transmission electron microscopy (TEM). A two-stage growth of core–shell PtNi–Ni nanoparticles was observed. The platinum (Pt)-based binary alloy was formed initially by a thermodynamically driven process, then grown by a monomer attachment process, and then the core formed and the process was stopped by depletion of the Pt precursor, and finally the nickel (Ni) shell formed. This growth process gives a way to grow a metallic shell for novel catalysts.

Graphical abstract: Growth mechanism of core–shell PtNi–Ni nanoparticles using in situ transmission electron microscopy

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Publication details

The article was received on 26 Feb 2018, accepted on 25 May 2018 and first published on 28 May 2018


Article type: Communication
DOI: 10.1039/C8NR01625A
Nanoscale, 2018,10, 11281-11286

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    Growth mechanism of core–shell PtNi–Ni nanoparticles using in situ transmission electron microscopy

    L. Zheng, X. Zhang, K. C. Bustillo, Y. Yao, L. Zhao, M. Zhu, W. Li and H. Zheng, Nanoscale, 2018, 10, 11281
    DOI: 10.1039/C8NR01625A

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