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

作者：Wang, Teng; Wang, Xiaojuan; Liu, Yang; Zheng, Jie^*; Li, Xingguo^*

来源：Nano Energy, 2016, 22: 111-119.

DOI：10.1016/j.nanoen.2016.02.023

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

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/cm(2)) and good stability for HER in both acidic and alkaline electrolytes, which is a promising low cost alternative for platinum based HER catalysts.

• 出版日期2016-4
• 单位北京联合大学; 北京大学