Oxygen Reduction and Evolution on Ni-modified Co₃ O₄ (1 1 1) Cathodes for Zn-Air Batteries: A Combined Surface Science and Electrochemical Model Study.

The Ni 2p, Co 2p, and O 1s core‐level XP spectra obtained for different Ni fluxes at constant Co flux and O 2 partial pressure, and hence with different Ni/Co ratios, show a clear trend (Figure 7 ).

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