摘要：The commercialization of proton exchange membrane fuel cells(PEMFCs)could provide a cleaner energy society in the near ***,the sluggish reaction kinetics and harsh conditions of the oxygen reduction reaction affect the durability and cost of *** previous reports on Pt-based electrocatalyst designs have focused more on improving their activity;however,with the commercialization of PEMFCs,durability has received increasing ***-depth insight into the structural evolution of Pt-based electrocatalysts throughout their lifecycle can contribute to further optimization of their activity and *** development of in situ electron microscopy and other in situ techniques has promoted the elucidation of the evolution *** mini review highlights recent advances in the structural evolution of Pt-based *** mechanisms are adequately discussed,and some methods to inhibit or exploit the structural evolution of the catalysts are also briefly reviewed.