What question did this study set out to answer?

To improve the oxygen reduction reaction activity of Co3O4 for use in zinc-air batteries through nitrogen doping.

Nitrogen‐Doped Co₃O₄ Mesoporous Nanowire Arrays as an Additive‐Free Air‐Cathode for Flexible Solid‐State Zinc–Air Batteries

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Randomized trial demonstrates enhanced catalytic activity in flexible zinc-air batteries, indicating new design opportunities for electronics.

To improve the oxygen reduction reaction activity of Co3O4 for use in zinc-air batteries through nitrogen doping.
Implemented a controllable nitrogen-doping strategy on Co3O4 nanowires.
Conducted experiments and density functional theory (DFT) calculations to assess catalytic performance.
Evaluated the performance of all-solid-state zinc-air batteries with the optimized additive-free air-cathode.
Achieved a high volumetric capacity of 98.1 mAh cm-3 for zinc-air batteries using N-doped Co3O4.
Demonstrated improved ORR activity and electronic conductivity due to nitrogen doping.
Enhanced O2 adsorption strength and reaction kinetics contributed to superior battery performance.

Yu et al. (2017) studied this question.

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Randomized trial demonstrates enhanced catalytic activity in flexible zinc-air batteries, indicating new design opportunities for electronics.