Porous Ni2P/C microrods derived from microwave-prepared MOF-74-Ni and its electrocatalysis for hydrogen evolution reaction

Hexagonal micro-rods of MOF-74-Ni have been synthesized through a facile and ultrafast (2 min) microwave-assisted approach, which was then utilized as a precursor for preparation of porous Ni2P/C composite. The as-prepared Ni2P/C exhibited excellent electrocatalytic activity towards hydrogen evolution reaction (HER) with a low onset potential of -94 mV, long-term stability (>24 h), and a Tafel slope of 113.2 mV dec(-1). The high performance was ascribed to large surface area owing to the porous structure, intrinsically high electrocatalytic activity of Ni2P, as well as high electrical conductivity from the carbon component. (C) 2018 Elsevier B.V. All rights reserved.