Proton exchange membrane (PEM) electrolyzers have emerged as a promising technology for the generation of hydrogen, driven by the increasing demand for clean and sustainable energy options. These systems utilize a solid polymer electrolyte to divide hydrogen and oxygen ions, facilitating an efficient electrochemical process. This review provides a

PEM electrolyzer technology has undergone significant progresses in recent years, driven by the growing demand for clean and sustainable energy solutions. These advancements include improvements in catalyst materials, membrane performance, and system configuration. As a result, PEM electrolyzers are becoming increasingly competitive for various app