Elemental Segregation in Multimetallic Core-Shell Nanoplates

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal

2 Scopus Citations
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Author(s)

  • Faisal Saleem
  • Zhicheng Zhang
  • Xiaoya Cui
  • Yue Gong
  • Bo Chen
  • Zhuangchai Lai
  • Qinbai Yun
  • Lin Gu

Related Research Unit(s)

Detail(s)

Original languageEnglish
Pages (from-to)14496−14500
Journal / PublicationJournal of the American Chemical Society
Volume141
Issue number37
Online published29 Aug 2019
Publication statusPublished - 18 Sep 2019

Abstract

In this work, we report an element segregation phenomenon in two-dimensional (2D) core-shell nanoplates, subsequently resulting in the formation of yolk-cage nanostructures after selective electrochemical etching. By using PtCu nanoplates as templates, PtCu@Pd core-shell nanoplates are formed. Interestingly, during the growth of Ru on the PtCu@Pd core-shell nanoplates, due to the selective element diffusion, PtCuPd@PdCu@Ru nanoplates are obtained. After selectively etching of PdCu in PtCuPd@PdCu@Ru using electrochemical method, the PtCuPd@Ru yolk-cage nanostructures are obtained. As a proof-of-concept application, this unique nanostructure shows superior electrocatalytic activity and stability toward the methanol oxidation reaction as compared to the PtCu nanoplates and commercial Pt/C catalyst.

Citation Format(s)

Elemental Segregation in Multimetallic Core-Shell Nanoplates. / Saleem, Faisal; Zhang, Zhicheng; Cui, Xiaoya; Gong, Yue; Chen, Bo; Lai, Zhuangchai; Yun, Qinbai; Gu, Lin; Zhang, Hua.

In: Journal of the American Chemical Society, Vol. 141, No. 37, 18.09.2019, p. 14496−14500.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal