UK electrolyser maker ITM Power and fluoropolymer firm W. L. Gore say they have demonstrated that an ultra-thin proton exchange membrane (PEM) can deliver both higher efficiency and long-term durability in green hydrogen production.

Results published in a Gore white paper show a 50 micrometre (μm) reinforced membrane operated for 11,000 hours under “industrially relevant conditions” while maintaining low degradation rates, low hydrogen crossover and high efficiency.