Abstract
Semi-interpenetrating network (semi-IPN) membranes based on sulfonated poly(arylene ether sulfone) (SPAES) were developed for application in polymer electrolyte membrane fuel cells (PEMFCs) operating at high temperature (>100°C) and low relative humidity (<50% RH) conditions. The semi-IPN membranes were prepared by a heating procedure using SPAES solutions containing vinyl phosphonic acid (VPA) and diethylene glycol dimethacrylate (DEGDMA). When the membrane was prepared using the optimized molar ratio of VPA to DEGDMA, it showed a very high proton conductivity of up to 10mScm−1 at 120°C and 40% RH, and high mechanical property with a tensile strength of 43.2MPa. Membrane electrode assemblies (MEAs) prepared using this semi-IPN membrane showed a peak power density of 180mWcm−2 at 120°C and 40% RH, which is better than that of the MEAs prepared using SPAES membrane (145mWcm−2). The semi-IPN membranes also showed very good electrochemical stability during the durability test.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
