Recent Progress in Prussian Blue Analog Nanomaterials: Structural Engineering and Functional Applications

Nanoheterostructures that integrate Prussian blue (PB) or Prussian blue analogs (PBAs) coordination polymers combined with other inorganic substances integrated into a unified nanosystem represent an extremely demanding yet rapidly developing category of distinct hybrid multifunctional nanostructures. In these structures, chemical and physical properties can function either independently or synergistically to produce unique effects. The conventional PB, distinguished by its flawless structure and highly integrated lattice, demonstrates exceptional structural stability while harboring a diverse range of vacancy networks. And so forth, providing the basis for all kinds of physicochemical reactions. In this review, we comprehensively summarize the key advancements in this category of nanomaterials, focusing on their compositions, structures, and various applications. The characteristics of different structures and their applications in battery electrocatalysis are introduced, and the role and contribution of nanomaterials are highlighted.