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- W3202606310 abstract "Non-precious metal-based electrocatalysts with excellent activity and stability are highly desired for the sluggish oxygen reduction reaction (ORR) and oxygen evolution reaction (OER). Herein, a tannic acid (TA) etching strategy is used to inhibit the metal aggregation and achieve muti-metal doping. The hollow NH2[email protected] derived Fe–N–C catalyst exhibits superior ORR catalytic activity with an E1/2 of 0.872 V and a maximum output power density of 123.4 mW cm−2 in Zn-air battery. Since TA can easily chelate with metal ions, Fe/Co–N–C and Fe/Ni–N–C are also synthesized. Fe/Ni–N–C manifests exceptional bifunctional activity with an Ej = 10 of 1.67 V and a potential gap of 0.833 V between Ej = 10 and E1/2 in alkaline electrolyte, which is 45 mV smaller than Pt/C–IrO2. The improvement of ORR and OER performance of the catalysts via the simple TA etching and chelation method provides a novel strategy for the design and synthesis of efficient electrocatalysts." @default.
- W3202606310 created "2021-10-11" @default.
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- W3202606310 date "2021-11-01" @default.
- W3202606310 modified "2023-09-26" @default.
- W3202606310 title "Hollow NH2-MIL-101@TA derived electrocatalyst for enhanced oxygen reduction reaction and oxygen evolution reaction" @default.
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- W3202606310 doi "https://doi.org/10.1016/j.ijhydene.2021.09.107" @default.
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