Abstract
A novel proton conducting polymer electrolyte membrane, poly(arylene ether) ionomer containing sulfofluorenyl groups (SPE-1), was subjected to long term fuel cell operation. High durability of the SPE-1 membrane was confirmed by single cell test at 80 °C and at a constant current density of 0.2 A/cm 2. Under 90% RH operation, superior hydrolytic stability of the SPE-1 membrane was demonstrated even after 5000 h with no noticeable degradations with respect to cell performances, ion exchange capacity, thickness, and molecular weight. Under 60% RH operation, some change in the molecular weight was observed after 2350 h presumably due to the oxidative degradation caused by the increased cross-over of reactant gases through the membrane.
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.
