Issue 33, 2017

Ball-milling synthesis of Co2P nanoparticles encapsulated in nitrogen doped hollow carbon rods as efficient electrocatalysts

Abstract

Exploring highly active and low-cost electrocatalysts continues to be a significant challenge for the commercialization of renewable electrochemical energy technologies. Herein, a versatile approach is demonstrated to skilfully synthesize Co2P nanoparticles encapsulated in nitrogen doped hollow carbon rods (Co2P/N-HCRs) by ball-milling following simple heat treatment. In particular, the Co/C content has an extremely important influence on the formation of Co2P/N-HCRs with tubular structures. Benefiting from structural advantages and synergistic effects between Co2P and the protective N-doped graphitic carbon shell, the optimal Co2P/N-HCRs display comparable electrocatalytic activity and excellent durability relative to a commercial Pt/C catalyst. Apart from providing a promising electrocatalyst alternative, this work, most importantly, holds great potential for a high-yielding yet cost-effective manufacturing strategy to prepare metal phosphide/N–C electrocatalysts for renewable electrochemical energy technologies.

Graphical abstract: Ball-milling synthesis of Co2P nanoparticles encapsulated in nitrogen doped hollow carbon rods as efficient electrocatalysts

Supplementary files

Article information

Article type
Paper
Submitted
25 Jun 2017
Accepted
28 Jul 2017
First published
28 Jul 2017

J. Mater. Chem. A, 2017,5, 17563-17569

Ball-milling synthesis of Co2P nanoparticles encapsulated in nitrogen doped hollow carbon rods as efficient electrocatalysts

H. Wang, W. Wang, Y. Y. Xu, M. Asif, H. Liu and B. Y. Xia, J. Mater. Chem. A, 2017, 5, 17563 DOI: 10.1039/C7TA05510B

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