Facile synthesis of Fe Ni bimetallic N doped carbon framework for efficient electrochemical hydrogen evolution reaction
Abstract Hydrogen is one of the most desirable sources with large energy density. Electrocatalysis of hydrogen evolution reaction is a promising way to produce hydrogen since it can be powered by renewable energy such as solar and wind energy. However, the mainstream electrocatalyst is noble metal (Pt/Ru/Ir) which is expensive and rare. It is necessary to develop non noble metal catalysts toward HER from the perspective of sustainable development and long term environmental conservation. Therefore, this paper provides a cheap and feasible way to synthesize the Fe Ni bimetallic N doped carbon framework (Fe Ni@NCF) The prepared Fe Ni@NCF exhibits the desired overpotential of 219 mV at 10 mA cm 2 in alkaline and 259 mV at 10 mA cm 2 in acidic solution, respectively. Besides, it exhibits similar current density loss as commercial Pt/C after 10,000 segments of CVs, which suggests satisfactory durability.