논문 상세보기
Polymer electrolyte membrane fuel cells (PEFCs) are eco-friendly energy conversion systems to convert hydrogen directly into electricity via an electrocatalytic reaction. Representative membrane materials of PEFCs are Perfluorinated sulfonic acid (PFSA) ionomers including NafionⓇ and 3M ionomers. In spite of high proton conductivity, it is difficult to apply PFSA free-standing membranes in real PEFC applications owing to their weak mechanical failures and thermo-chemical decomposition during PFEC operations, in addition to a relatively high production cost. In this study, Nafion nanodispersions in water-alcohol mixtures are fabricated using a supercritical fluid technique. The fundamental membrane characteristics are compared with those of counterpart membranes obtained from a commercially available Nafion emulsion.
