Facile controlled formation of CoNi alloy and CoO embedded in N-doped carbon as advanced electrocatalysts for oxygen evolution and zinc-air battery

•A facile and controllable strategy toward alloy/metal oxide embedded in N-doped carbon is presented.•CoO is in-situ formed during the preparation of CoNi without further annealing in air.•Schottky barrier between CoNi and CoO favors charge separation, enhancing the catalytic OER activity and kineti...

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