Ultrafine CoFe2O4 quantum dots as an oxygen electrocatalyst for rechargeable zinc air batteries

摘要

CoFe2O4 quantum dots (QDs) showed a battery performance 1.79 times higher than that displayed by the benchmark Pt/C–IrO2. Furthermore, a power density of 87 mW cm−2 was achieved for all-solid-state zinc air batteries (ZABs) of CoFe2O4 QDs, implying good prospects of using these QDs in practical applications.