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Abstract:Judiciously engineering the electrocatalysts is attractive and challenging to exploit materials with high electrocatalytic performance for hydrogen evolution reaction. Herein, we successfully perform the interface engineering by alternately depositing Co±P and Ni±Fe±P films on nickel foam, via facile electroless plating and de-alloying process. This work shows that there is a significant effect of de-alloying process on alloy growth. The electronic structure of layered alloys is improved by interface engineering. The multilayer strategy significantly promotes the charge transfer. Importantly, the Co±P/Ni±Fe±P/NF electrode fabricated by interface engineering exhibits excellent electrocatalytic hydrogen evolution activity with an overpotential of 43.4 mV at 10 mA cm~(-2) and long-term durability for 72 h in alkaline medium(1 mol L~(-1) KOH). The innovative strategy of this work may aid further development of commercial electrocatalysts.

Volume:v.7

Issue:01

Translation or Not:no