Metal Free Catalysts for Water Splitting


Metal Free Catalysts for Water Splitting

Paramita Karfa, Kartick Chandra Majhi, Rashmi Madhuri

Water splitting through electrolysis with the use of renewable sources is a highly versatile method of energy conversion producing hydrogen, which is a very clean energy carrier. Development of earth abundant catalyst with long term stability and high efficiency is of current research interest which can replace noble metal catalyst like Pt, Ir. Catalyst prepared through metal precursors like metal oxides, metal selenides, metal phosphides suffer from high expenses, poor durability, vulnerability to gas poisoning, limitations in electrolytic medium, formation of by-product which are not environmental friendly, low selectivity. Researcher have synthesized a new class of material i.e., metal free catalyst which acquires some of the best properties like large surface area, variety of shape and size and high robustness. Among the metal free catalysts, the carbon based catalyst was studied and researched more expansively. Research is going on full steam to overcome different key challenges like catalyst stability, high Faradaic efficiency and to explore further future opportunities in this exhilarating field.

Water Splitting, Oxygen Evolution Reaction (OER), Hydrogen Evolution Reaction (HER), Metal Free Catalyst, Graphene, Carbon Nanotube, Graphitic Carbon Nitride

Published online 10/5/2019, 28 pages

Citation: Paramita Karfa, Kartick Chandra Majhi, Rashmi Madhuri, Metal Free Catalysts for Water Splitting, Materials Research Foundations, Vol. 59, pp 97-124, 2019


Part of the book on Electrochemical Water Splitting

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