Document Type : Review Paper
Mohammed V University in Rabat
n 26 Lot. Fath Abouregreg, Av. Abdelakrim El Khattabi, Temara, Maroc
Mohammed V University In Rabat
In the framework of developing renewable energies and reducing greenhouse gas emissions, green hydrogen has become a crucial factor in the energy revolution. This energy vector can be manufactured from biomass, biogas reforming, or by splitting water, which is one of the most abundant and limitless power generators on earth. Proton exchange membrane water electrolysis (PEMWE) has gained considerable attention as an energy conversion system for hydrogen production. It is considered the preferred choice for green hydrogen production owing to its energy efficiency, low capital cost, flexibility, safety, and durability. The membrane is the beating heart of the PEMWE electrolysis cell. The most used PEM membrane is perfluorosulfonic acid (PFSA) membranes, especially Nafion. However, these membranes have weaknesses that affect production efficiency. Therefore, developing membranes is crucial to improve and enhance the working temperature, optimize mass transportation, avoid catalyst corrosion and electrode flooding, boost effectiveness, and minimize the system's price and complexity. To design high-temperature functioning membranes, modifications to conventional ones include adding various hygroscopic inorganic particles or creating original polymer systems. This work begins with generalities about green hydrogen production using PEMWE. In this section, we will describe the functioning and diverse cell operating parameters, followed by the role and functioning of different components. In the second part, we provide a comprehensive description of the PEMWE membrane, including detailed statements on classification, essential transport phenomena, and the degradation and durability of this electrolyte. Finally, we will conclude with a comparison between commercial membranes and those under development.