Synthesis of Palladium-Based Crystalline@Amorphous Core–Shell Nanoplates for Highly Efficient Ethanol Oxidation

Peng Fei Yin, Ming Zhou, Junze Chen, Chaoliang Tan, Guigao Liu, Qinglang Ma, Qinbai Yun, Xiao Zhang, Hongfei Cheng, Qipeng Lu, Bo Chen, Ye Chen, Zhicheng Zhang, Jingtao Huang, Dianyi Hu, Jie Wang, Qing Liu, Zhiyong Luo, Zhengqing Liu, Yiyao GeXue Jun Wu, Xi Wen Du, Hua Zhang

Research output: Journal article publicationJournal articleAcademic researchpeer-review

64 Citations (Scopus)

Abstract

Phase engineering of nanomaterials (PEN) offers a promising route to rationally tune the physicochemical properties of nanomaterials and further enhance their performance in various applications. However, it remains a great challenge to construct well-defined crystalline@amorphous core–shell heterostructured nanomaterials with the same chemical components. Herein, the synthesis of binary (Pd-P) crystalline@amorphous heterostructured nanoplates using Cu3− χP nanoplates as templates, via cation exchange, is reported. The obtained nanoplate possesses a crystalline core and an amorphous shell with the same elemental components, referred to as c-Pd-P@a-Pd-P. Moreover, the obtained c-Pd-P@a-Pd-P nanoplates can serve as templates to be further alloyed with Ni, forming ternary (Pd-Ni-P) crystalline@amorphous heterostructured nanoplates, referred to as c-Pd-Ni-P@a-Pd-Ni-P. The atomic content of Ni in the c-Pd-Ni-P@a-Pd-Ni-P nanoplates can be tuned in the range from 9.47 to 38.61 at%. When used as a catalyst, the c-Pd-Ni-P@a-Pd-Ni-P nanoplates with 9.47 at% Ni exhibit excellent electrocatalytic activity toward ethanol oxidation, showing a high mass current density up to 3.05 A mgPd −1, which is 4.5 times that of the commercial Pd/C catalyst (0.68 A mgPd −1).

Original languageEnglish
Article number2000482
JournalAdvanced Materials
Volume32
Issue number21
DOIs
Publication statusPublished - 1 May 2020
Externally publishedYes

Keywords

  • amorphous
  • ethanol oxidation reaction
  • heterostructures
  • nanoplates

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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