Novel anode based on sulfonated polysulfone for medium temperature direct methanol fuel cells

► Sulfonated polysulfone was used as ionomer in a DMFC anode at 130 °C ► The sPSU based anode has a high activity for the methanol oxidation. ► The anode has a good mechanical stability and adhesion on the Nafion® membrane. ► Anode catalyst inks based on sPSU do not require toxic and flammable solvents.