Photoelectrochemical (PEC) water splitting provides a promising approach for solving sustainable energy challenges and achieving carbon neutrality goals. The oxygen evolution reaction (OER), a key bottleneck in the PEC water-splitting system occurring at the photoanode/electrolyte interface, plays a fundamental role in sustainable solar fuel production. Proper surface or interface engineering strategies have been proven to be necessary to achieve efficient and stable PEC water oxidation. This review summarizes the recent advances in interface engineering, including junction formation, surface doping, surface passivation or protection, surface sensitization, and OER cocatalyst modification, while highlighting the remarkable research achievements in the field of PEC water splitting. The benefits of each interface engineering strategy and how it enhances the device performance are critically analyzed and compared. Finally, the outlook for the development of interface engineering for efficient PEC water splitting is briefly discussed. This review illustrates the importance of employing rational interface engineering in realizing efficient and stable PEC water splitting devices.

中文翻译：

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光电化学析氧反应的界面工程


光电化学 （PEC） 分解水为解决可持续能源挑战和实现碳中和目标提供了一种有前途的方法。析氧反应 （OER） 是 PEC 分解水系统中发生在光阳极/电解质界面处的关键瓶颈，在可持续太阳能燃料生产中起着重要作用。事实证明，适当的表面或界面工程策略对于实现高效稳定的 PEC 水氧化是必要的。本文综述了界面工程的最新进展，包括结形成、表面掺杂、表面钝化或保护、表面敏化和 OER 助催化剂改性，同时强调了 PEC 分解水领域的显著研究成果。对每种接口工程策略的优势以及它如何提高器件性能进行了批判性的分析和比较。最后，简要讨论了用于高效 PEC 分解水的界面工程的发展前景。本文阐述了采用合理的界面工程在实现高效稳定的 PEC 分解水装置方面的重要性。