A highly efficient and stable biphasic nanocrystalline Ni-Mo-N catalyst for hydrogen evolution in both acidic and alkaline electrolytes

Teng Wang, Xiaojuan Wang, Yang Liu, Jie Zheng, Xingguo Li

Research output: Contribution to journalArticlepeer-review

180 Scopus citations

Abstract

The hydrogen evolution reaction (HER) is of critical importance for sustainable hydrogen production from water electrolysis. In this work, we report a highly efficient and stable noble metal free HER catalyst, which is composed of homogeneously distributed metallic Ni and NiMo4N5 nanocrystals. The biphasic nanocrystalline Ni-Mo-N catalyst shows very low overpotential (53 mV in 0.5 M H2SO4 and 43 mV in 1 M KOH, at current density 20 mA/cm2) and good stability for HER in both acidic and alkaline electrolytes, which is a promising low cost alternative for platinum based HER catalysts.

Original languageEnglish
Pages (from-to)111-119
Number of pages9
JournalNano Energy
Volume22
DOIs
StatePublished - 1 Apr 2016
Externally publishedYes

Keywords

  • Catalyst
  • Electrocatalysis
  • Hydrogen evolution reaction
  • Ni-Mo
  • Noble metal free

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