Unveiling the electronic synergy of Sm-doping upon Co3O4 in bifunctional ORR/OER electrocatalysis and rechargeable Zn-air batteries by an experimental-DFT approach

2026-08-04

PRE

Tianqi Cao

Haijie Cao *

张

张一帅 (Yishuai Zhang)

Xuehua Liu

Chuanhui Zhang *

DOI：10.1016/j.apsusc.2026.168038

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• Sm doping upon spinel Co3O4 boosts bifunctional ORR/OER electrocatalytic activity. • Sm doping induces the lattice distortion and the formation of oxygen vacancies. • Sm doping optimizes the adsorption of oxygen-containing intermediates by ATR-SEIRAS. • A ZAB cell with Sm-modified Co3O4 cathode displays a competitive performance.

Keywords:

Rechargeable zinc-air batteries

ORR andOER kinetics

Spinel Co3O4

Sm doping

Oxygen vacancy

DFT calculation

Unveiling the electronic synergy of Sm-doping upon Co3O4 in bifunctional ORR/OER electrocatalysis and rechargeable Zn-air batteries by an experimental-DFT approach

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