Cardo Polybenzimidazole (PBI-O-PhT) Based Membrane Reinforced with m-polybenzimidazole Electrospun Nanofiber Mat for HT-PEM Fuel Cell Applications.

ABSTRACT: The further development of high temperature polymer electrolyte membrane (HT-PEM) fuel cells largely depends on the improvement of all components of the membrane-electrode assembly (MEA), especially membranes and electrodes. To improve the membrane characteristics, the cardo-polybenzimidazole (PBI-O-PhT)-based polymer electrolyte complex doped with phosphoric acid is reinforced using an electrospun m-PBI mat. As a result, the PBI-O-PhT/es-m-PBI_net · nH₃PO₄ reinforced membrane is obtained with hydrogen crossover values (~0.2 mA cm^-2 atm^-1), one order of magnitude lower than the one of the initial PBI-O-PhT membrane (~3 mA cm^-2 atm^-1) during HT-PEM fuel cell operation with Celtec^®P1000 elect

SUBMITTER: Ponomarev II 

PROVIDER: S-EPMC9610054 | biostudies-literature | 2022 Sep

REPOSITORIES: biostudies-literature