To meet the current energy needs of society, the highly efficient and continuous production of clean energy is required. One of the key issues facing the green hydrogen evolution is the construction of efficient, low-cost electrocatalysts. Prussian blue (PB), Prussian blue analogs (PBAs), and their derivatives have tunable metal centers and have attracted significant interest as novel photo- and electrochemical catalysts. In this review, recent research progress into PB/PBA-based hollow structures, substrate-supported nanostructures, and their derivatives for green water splitting is discussed and summarized. First, several remarkable examples of nanostructured PB/PBAs supported on substrates (copper foil, carbon cloth, and nickel foam) and hollow structures (such as single-shelled hollow boxes, open hollow cages, and intricate hollow structures (multi–shell and yolk–shell)) are discussed in detail, including their synthesis and formation mechanisms. Subsequently, the applications of PB/PBA derivatives ((hydr)oxides, phosphides, chalcogenides, and carbides) for water splitting are discussed. Finally, the limitations in this research area and the most urgent challenges are summarized. We hope that this review will stimulate more researchers to develop technologies based on these intricate PB/PBA structures and their derivatives for highly efficient, green water splitting.

为了满足当前社会对能源的需求，需要高效、持续地生产清洁能源。绿色析氢面临的关键问题之一是构建高效、低成本的电催化剂。普鲁士蓝 (PB)、普鲁士蓝类似物 (PBA) 及其衍生物具有可调的金属中心，作为新型光和电化学催化剂引起了人们极大的兴趣。在这篇综述中，讨论和总结了基于 PB/PBA 的中空结构、基底支撑的纳米结构及其衍生物用于绿水分解的最新研究进展。首先，纳米结构 PB/PBA 支撑在基材（铜箔、碳布和泡沫镍）和中空结构（如单壳空心盒、开放式空心笼、和复杂的空心结构（多壳和蛋黄壳））进行了详细讨论，包括它们的合成和形成机制。随后，讨论了 PB/PBA 衍生物（（氢）氧化物、磷化物、硫属化物和碳化物）在水分解中的应用。最后，总结了该研究领域的局限性和最紧迫的挑战。我们希望这篇综述能激励更多的研究人员开发基于这些复杂的 PB/PBA 结构及其衍生物的高效绿色水分解技术。总结了该研究领域的局限性和最紧迫的挑战。我们希望这篇综述能激励更多的研究人员开发基于这些复杂的 PB/PBA 结构及其衍生物的高效绿色水分解技术。总结了该研究领域的局限性和最紧迫的挑战。我们希望这篇综述能激励更多的研究人员开发基于这些复杂的 PB/PBA 结构及其衍生物的高效绿色水分解技术。