Here we describe a symmetrical waveform alternating current strategy that provides a solution for obtaining gradient oxygen vacancies (VO) in situ. The unique gradient VO provides multiple stairs to reduce the reaction kinetics and thus contributes to a total increase of up to 84.7% in current density.
Z. Qi, J. Zhuang, W. Yang, Y. Yang, L. Wang, C. Cai, Z. Zhang, Y. Hua, D. Abdirazik, L. Li, W. Shi and J. Hao, Chem. Commun., 2023, 59, 10632 DOI: 10.1039/D3CC02704J
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