Emerging Materials for Hydrogen and Oxygen Electrochemical Devices: From Synthesis to Application Prospects

ABSTRACT Electrolytic water splitting is a promising method for hydrogen production that can support the conversion and sustainable energy storage of emerging clean energy systems. However, there is an extensive requirement for industrial‐scale hydrogen production, and it is crucial to develop low‐cost and expeditious electrocatalytic materials for OER and HER in electrocatalytic water splitting. Assorted novel materials exhibit brilliant expected application in amending inherent activity and long‐term stability, due to their electronic structure and distinctive properties. This has spurred terrific interest in water electrolysis. In this review, we will look forward to the latest developments in electrocatalytic materials consumed for water electrolysis, including atomic‐level materials, porous materials, high‐entropy materials, selfsupporting electrode materials, and other related materials. Finally, we concisely outline the remaining challenges and propose future prospects for the advancement of water electrolysis materials.