In situ construction of MOF derived CoNC anchored on N-doped carbon xerogel sphere as efficient bifunctional ORR/OER electrocatalyst for Zn-air batteries.

ABSTRACT: Electrocatalytic materials with dual functions of oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) have received increasing attention in the field of zinc-air batteries (ZABs) research. In this study, bifunctional CoNC@NCXS catalysts were prepared by anchoring Co and N co-doped CoNC on N-doped carbon xerogel sphere (NCXS) based on the spatially confined domain effect and in-situ doping technique. CoNC@NCXS exhibited excellent ORR/OER activity in alkaline electrolytes with the ORR onset potential of 0.99 V, the half-wave potential (E_1/2) of 0.78 V at 10 mA cm^-2 and the OER overpotential of 360 mV at 10 mA cm^-2. These excellent catalytic activities were derived from constructing composite active structures and enhancing electrocatalytic eff

SUBMITTER: Jin H 

PROVIDER: S-EPMC11775264 | biostudies-literature | 2025 Jan

REPOSITORIES: biostudies-literature