Recent progress on earth abundant hydrogen evolution reaction and oxygen evolution reaction bifunctional electrocatalyst for overall water splitting in alkaline media
Abstract Electrochemical water splitting is one of the promising ways for producing clean chemical fuel (Hydrogen) while cheap earth abundant bifunctional electrocatalyst is one of the possible way for improving the overall cost efficiency of water splitting. This paper reviews the chemical state, hydrogen and oxygen evolution reaction activity in alkaline media, overall water splitting performance in alkaline media, stability, and possible factors for improving its efficiency of various kinds of recently reported electrocatalyst such as Ni P, Co P, Ni Co P, graphene Co P, O/N/C Co/Ni, Ni S, B Ni/Co, Ni Co, Mo, Se, Fe, Mn/Zn/Ti, and metal free based earth abundant bifunctional electrocatalyst. This paper also reviews and highlights the remarkable water splitting performance of the earth abundant bifunctional electrocatalyst those exhibit better or well comparable with Pt/C//RuO 2