Proton exchange membranes based on the short-side-chain perfluorinated ionomer for high temperature direct methanol fuel cells Original Research Article

Short-side-chain Hyflon® perfluorinated ionomer based membrane was investigated as electrolyte for high temperature direct methanol fuel cells. A fuel cell performance approaching 300 mW cm–2 was achieved at 140°C in the presence of 1M methanol and air feed. Stable electrochemical performance was achieved indicating suitable perspective for high temperature operation of Hyflon® membrane.