No abstract

No abstract

No abstract

Hollow nanostructures of transition metal phosphate are of immense interest in the existing and evolving areas of technology, due to their high surface area, presence of hollow void, and easy tuning of compositions and dimensions. Emerging synthesis methods such as templatefree methods, hard-templating, and soft-templating are discussed in this review. Applications of these hollow metal phosphates dominate in energy storage and conversions, with specific advantages as supercapacitor materials. Other applications, including drug delivery, water splitting, catalysis, and adsorption, are reviewed. Finally, additional perspectives on the progress of these nanostructures, and their existing challenges related to the current synthesis routes are covered. Therefore, with the strategic modifications of the unique properties of these hollow metal phosphates, broader application requirements are fulfilled.

The cover picture shows the general method to synthesize hollow transition‐metal phosphates nanoparticles. More viewpoints are provided on the issues around the synthesis methods with advanced novel strategies to explore the functionalization of these hollow transition‐metal phosphates for different applications, such as energy conversion, catalysis, adsorption, and drug delivery. High surface area, tunable size, and thorough porosity on the shell with hollow voids enhance the aforementioned applications. See the Review by B. P. Bastakoti and co‐workers (DOI:10.1002/tcr.202200084).