“…In hollow structures, regulating the shell part could tune the mass transport during catalytic reactions. − The chemical compositions of catalysts can be modified by analyzing the binding energy of adsorbents and desorption of intermediates on the catalyst surface. − Furthermore, the micro/nanostructures can significantly enhance the utilization and decrease the consumption of costly precious metals, which can function as direct electrocatalysts or hosts for loading active materials toward water splitting. , Hollow materials offer multiple surface active sites for catalyzing water splitting, in which the active components can be placed into the channel or pore walls, inner cavities, or inner or outer surfaces and also can be enclosed within the framework to create heterostructures. Additionally, hollow micro/nanostructures are used to improve the efficacy of active species by increasing the electrolyte retention time within the pores of hollow catalytic materials.…”