Nickel Phosphide Coated with Ultrathin Nitrogen‐Doped Carbon Shell as a Highly Durable and Active Catalyst towards Hydrogen Evolution Reaction

Abstract

Developing non‐precious metal catalysts towards hydrogen evolution reaction (HER) is of both high scientific and technical importance for the widespread application of water electrolysis. Herein, Ni2P nanoparticles coated with a ultrathin N‐doped carbon shell were prepared as a highly efficient HER catalyst. Ni2P@CN exhibits both enhanced catalytic activity and durability in comparison with the carbon‐supported Ni2P counterpart, and represents 100% faradaic yield for HER in an acidic medium. The improved charge transfer of N‐doped graphitic carbon shells contributes to the increase in activity. Meanwhile, the carbon shells suppress the aggregation and exfoliation of Ni2P nanoparticles. As a result, the synergistic role of the N‐doped carbon layer confers the Ni2P cores with boosted activity and stability.

Construction of Cobalt Molybdenum Diselenide Three‐phase Heterojunctions for Electrocatalytic Hydrogen Evolution in Acid Medium

“…[2][3][4][5] Due to the high cost and low content of precious metals, electrocatalyst has become the bottleneck of large-scale application of water electrolysis to produce hydrogen. Transition metal-based compounds are rich in variety and abundant in the earth, so many transition metalbased materials, such as sulfide, selenides, phosphates, carbides and so on, [6][7][8][9][10][11] have been developed as HER electrocatalysts to replace precious metals.…”