Details

Autor(en) / Beteiligte

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

Titel

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

Ist Teil von

• Nano energy, 2016-04, Vol.22, p.111-119

Ort / Verlag

Elsevier Ltd

Erscheinungsjahr

2016

Link zum Volltext

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• 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 (53mV in 0.5M H2SO4 and 43mV in 1M KOH, at current density 20mA/cm2) and good stability for HER in both acidic and alkaline electrolytes, which is a promising low cost alternative for platinum based HER catalysts. [Display omitted] •Excellent catalytic performance for the hydrogen evolution reaction. The biphasic nanocrystalline Ni–Mo–N catalyst shows low overpotential very close to that of commercial Pt/C catalyst and very excellent stability in both acidic and alkaline electrolytes.•Combined merits for catalysis due to unique biphasic structure. The Ni–Mo–N catalyst is composed of homogeneously distributed nanocrystals of metallic Ni and Ni–Mo nitride, which combines the merits of high catalytic activity and good acid stability.