Enhancing alkaline hydrogen evolution reaction activity through Ni–Mn3O4 nanocomposites

Abstract

Developing efficient, stable and cost-effective electrocatalysts towards hydrogen production in alkaline environments is vital to improve energy efficiency for water splitting. In this work, we prepared Ni–Mn₃O₄ nanocomposites on Ni foam which exhibit an excellent hydrogen evolution reaction catalytic activity with a current density (j) of 10 mA cm⁻² at an overpotential (η) of 91 mV and show good stability in an alkaline medium.