Promoting effect of amorphous support on ruthenium-based catalyst for electrochemical hydrogen evolution reaction

Abstract

Nano-network Ru with definite lattice defects on amorphous Co nanosheets is obtained for the first time. Amorphous Co support can promote the surface Ru to obtain special morphology and modified electronic structure, thus improving HER activity in alkaline solution. A current density of 10 mA cm⁻² can be obtained only with an overpotential of 33.5 mV.