An Assessment of Proton Exchange Membrane Water Electrolyzers

Abstract As the world is facing the effects of global warming and climate change, it has become an enormous priority to tackle those impacts. Since the world is heavily dependent on fossil fuels which are the major contributor of carbon, trying to find an alternative for a carbon-free future without disrupting the energy balance is a treacherous task. Green Hydrogen produced via electrolysis from renewable electricity can be a game changer in the future. Electrolysis is done by a device called electrolyzer and Proton Exchange Membrane Water Electrolyzers (PEMWE) have been touted as the most prevalent. In this review paper, the very basics of PEMWE will be discussed and then delve into the key components of PEMWE where materials, a few research, challenges, and then future suggestions will be delivered.