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- W4321439204 abstract "Although transition metal and N co-doped carbon (M-N-C) materials are regarded as the promising electrocatalysts for oxygen reduction reaction (ORR), they still suffer from unsatisfactory activity and stability. Herein, a novel strategy for halogen atom inducing the formation of highly active and stable C–pyridinic-N–Co sites is presented. The iodine doped Co-N-C catalysts formed via a chemical vapor deposition process, which shows a high half-wave potential of 0.85 V and remarkable durability. The introduction of iodine not only lowers the d band center of surface Co atoms and also makes the electronic rearrangement of Co-N-C structure. The unique structure promotes O2 adsorption strength and generate of OOH*, accelerating the ORR process on the surface of catalytically active sites surface. Moreover, as an air electrode in rechargeable Zn-air battery, the catalyst shows a large peak power density of 120 mW cm−2 and high stable cyclability. Even as flexible batteries, the cathode exhibits good stability and flexibility under different bending states." @default.
- W4321439204 created "2023-02-22" @default.
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- W4321439204 date "2023-04-01" @default.
- W4321439204 modified "2023-10-16" @default.
- W4321439204 title "Iodine-induced formation of C–pyridinic-N–Co sites on carbon-encapsulated cobalt nanocrystals as electrocatalyst for rechargeable Zn-air batteries" @default.
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- W4321439204 doi "https://doi.org/10.1016/j.cej.2023.142030" @default.
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