Abstract
In this study, MnOX and CoFe were sequentially electrodeposited onto a gas diffusion layer (GDL) as bifunctional electrocatalysts for rechargeable zinc-air batteries. The fabricated material was then assembled into a zinc-air battery as the air electrode component to run battery cycling tests. The sequentially deposited MnOX-CoFe catalysts showed activities for both ORR and OER, better than either MnOX or CoFe alone. The zinc-air battery using MnOX-CoFe catalysts exhibited good discharge-recharge performance and an efficiency comparable to Pt/C catalysts. In addition, the electrodeposited MnOX-CoFe layer showed strong adhesion to GDL and was stable throughout battery cycling.
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