The article "Polyoxometalates-derived nanostructures for electrocatalysis application" by Chao-Yue Sun, Wen Li, Kai Wang, Wei-Jia Zhou, and Hai-Qing Wang, published in 2024, focuses on the development of polyoxometalates (POMs) as platforms or precursors for constructing electrocatalysts. The authors highlight the importance of converting intermittent renewable electrical energy into chemical energy through electrocatalysis, particularly through hydrogen evolution reaction (HER), carbon dioxide reduction reaction (CO2RR), and nitrogen reduction reaction (NRR). The core challenge is designing low-cost, high-activity, and high-stability electrocatalysts to drive these reactions. The review systematically summarizes recent advances in POM-derived nanostructures for electrocatalysis, including precursor design, synthesis strategies, morphology control, phase control, composite modulation, and heterostructure engineering. The structure–activity relationships of POM-derived nanostructures for HER, CO2RR, and NRR applications are discussed in detail. The article also addresses current challenges and future prospects, aiming to provide insights into the development of high-efficiency electrocatalysts for energy conversion technologies. Keywords: Microforming; Cylindrical compression; Size effects; Grain orientation; Inhomogeneous deformationThe article "Polyoxometalates-derived nanostructures for electrocatalysis application" by Chao-Yue Sun, Wen Li, Kai Wang, Wei-Jia Zhou, and Hai-Qing Wang, published in 2024, focuses on the development of polyoxometalates (POMs) as platforms or precursors for constructing electrocatalysts. The authors highlight the importance of converting intermittent renewable electrical energy into chemical energy through electrocatalysis, particularly through hydrogen evolution reaction (HER), carbon dioxide reduction reaction (CO2RR), and nitrogen reduction reaction (NRR). The core challenge is designing low-cost, high-activity, and high-stability electrocatalysts to drive these reactions. The review systematically summarizes recent advances in POM-derived nanostructures for electrocatalysis, including precursor design, synthesis strategies, morphology control, phase control, composite modulation, and heterostructure engineering. The structure–activity relationships of POM-derived nanostructures for HER, CO2RR, and NRR applications are discussed in detail. The article also addresses current challenges and future prospects, aiming to provide insights into the development of high-efficiency electrocatalysts for energy conversion technologies. Keywords: Microforming; Cylindrical compression; Size effects; Grain orientation; Inhomogeneous deformation