We report a regenerable and redox-inactive ZnO_xH_y layer that was in situ deposited onto metal oxides MO_z (M = Co, Fe, and Ni) in alkaline media containing [Zn(OH)₄]²⁻ species during water oxidation. An interface dipole was developed at the MO_z/Zn interface, resulting in a decrease of the OER overpotential. Exemplified by the CoO_z/ZnO_xH_y bilayer structure, it presented a 155 mV lower overpotential to deliver 10 mA cm⁻² and long-term stability relative to the unmodified CoO_z film.

中文翻译：

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通过可再生且无氧化还原活性的 ZnOxHy 覆盖层，使用金属氧化物催化剂改善水氧化

我们报告了一种可再生且无氧化还原活性的 ZnO _x H _y层，该层在水氧化过程中在含有 [Zn(OH) ₄ ] ²⁻物种的碱性介质中原位沉积到金属氧化物 MO _z（M = Co、Fe 和 Ni）上. 在 MO _z / Zn 界面处形成界面偶极子，导致 OER 过电位降低。以CoO _z /ZnO _x H _y双层结构为例，相对于未改性的CoO _z膜，它表现出低155 mV的过电位以提供10 mA cm ^-2和长期稳定性。