Ion Exchange Membranes for Fuel Cells and Water Electrolysis
This community develops polymer and composite membranes that transport protons or hydroxide ions, serving as the core electrolyte for hydrogen fuel cells and water electrolysis systems.
The research focuses on synthesizing and optimizing ion-conducting materials, with a heavy emphasis on anion exchange membranes (AEMs) and high-temperature proton exchange membranes (HT-PEM). Recurring materials include sulfonated poly(ether ether ketone) (SPEEK), polybenzimidazole (PBI), and zirconium phosphate composites. Key methods involve the design of quaternary ammonium functional groups, the use of phosphoric acid doping, and the incorporation of graphene oxide or ionic liquids to enhance conductivity and stability. The work addresses specific challenges such as alkaline stability, water management, and the durability of membranes under operational conditions.
The largest share of the community's output is found in phosphorus research, accounting for 0.8% of all phosphorus research, and zirconium research, accounting for 1.3% of all zirconium research. Phosphorus also contributes the highest paper count within this group, with 2,531 papers.
The community comprises 10,028 papers, published primarily in the International Journal of Hydrogen Energy, Journal of Membrane Science, and Journal of Power Sources.
Recent work continues to focus on the durability and degradation of anion exchange membranes in water electrolyzers, as well as the development of microporous membranes for high-performance fuel cells.