PEM electrolyzers have emerged as a promising technology for the environmentally friendly production of hydrogen. These devices utilize a proton exchange membrane (PEM) to divide water into its constituent elements: oxygen and hydrogen. The PEM acts as a permeable barrier, allowing protons to migrate across while blocking the passage of electrons.

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