Self-assembled polyoxometalate enables efficient and stable proton conduction in high-temperature polymer electrolyte membranes
High-temperature proton exchange membrane fuel cells (HT-PEMFCs) are attractive for their high fuel-impurity tolerance and simplified water/thermal management, but their performance is often limited by phosphoric acid (PA) loss from the membrane, especially below 100 °C, where condensed water accelerates PA leaching. H...