Challenges and opportunities for industrial proton-exchange membrane water splitting

In this Activity article, Lei Du (associate professor at Guangzhou University), Siyu Ye (professor at Guangzhou University and vice chair and chief technology officer at SinoHykey), Shenlong Zhao (professor at the National Center for Nanoscience and Technology), and their collaborators discuss the challenges and opportunities of key materials for proton-exchange membrane (PEM) water splitting from both industrial and academic perspectives.