Abstract Photocatalysis provides a promising protocol for tackling the conjuncture of energy and environment in the light of feasible conversion H2O and CO2 to fuels, such as H2, CO, CH4, CH3OH, by utilizing solar energy. Earth-abundant nickel-based cocatalysts, which can effectively promote photocatalytic efficiency by extending light absorption range, boosting charge separation, providing active sites, and lowering reaction barrier, open up alluring vistas in the arenas of solar-to-fuels conversion. In this review, recent advances in nickel-based cocatalysts applied in photocatalytic H2 production, overall water splitting and CO2 reduction are summarized. This review highlights the various design strategies of nickel-based cocatalysts, including morphology modulation, interface engineering, and developing new nickel-contained cocatalysts. Besides, the mechanisms of nickel-based cocatalysts for promoting photocatalytic activities are systematically discussed from both theoretical and experimental aspects. Finally, perspectives on the challenges and opportunities for the further development of nickel-based cocatalysts are demonstrated.

中文翻译：

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用于光催化的镍基助催化剂：析氢、整体水分解和 CO2 还原

摘要 光催化通过利用太阳能将 H2O 和 CO2 转化为燃料，如 H2、CO、CH4、CH3OH，为解决能源与环境的结合提供了一种很有前景的方案。地球上丰富的镍基助催化剂可以通过扩大光吸收范围、促进电荷分离、提供活性位点和降低反应势垒来有效提高光催化效率，为太阳能到燃料的转化领域开辟了诱人的前景。在这篇综述中，总结了镍基助催化剂在光催化制氢、整体水分解和 CO2 还原方面的最新进展。本综述重点介绍了镍基助催化剂的各种设计策略，包括形态调节、界面工程和开发新的含镍助催化剂。此外，从理论和实验两个方面系统地讨论了镍基助催化剂促进光催化活性的机制。最后，展示了对进一步开发镍基助催化剂的挑战和机遇的看法。