As clean and sustainable energy conversion devices, proton-exchange membrane fuel cells (PEMFCs) are expected to play dominant role in future clean energy solutions for various applications, particularly for electric vehicles (EVs). However, the high cost of Pt catalyst is one of the main obstacles for the wide-spread commercialization of PEMFCs. Therefore, developing highly efficient low-Pt and non-Pt group metal (Non-PGM) catalysts are one of the key solutions to solve the above-mentioned challenges.

　　In this report, Prof. Sun presented recent progress in developing advanced electrocatalysts mainly for oxygen reduction reaction (ORR) in PEMFCs. Moreover, other types of novel nanostructured NPM catalysts for metal-air batteries were also discussed. Finally, Prof. Sun also answered questions from teachers and students.