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 language | English |
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Pages (from-to) | 111-119 |
Number of pages | 9 |
Journal | Nano Energy |
Volume | 22 |
DOIs | |
State | Published - 1 Apr 2016 |
Externally published | Yes |
Keywords
- Catalyst
- Electrocatalysis
- Hydrogen evolution reaction
- Ni-Mo
- Noble metal free