Mechanical Stability of H3PO4-Doped PBI/Hydrophilic-Pretreated PTFE Membranes for High Temperature PEMFCs

- PBI/PTFE membrane was prepared by porous PTFE with hydrophilic surface pretreatment.
- The durability of the prepared PBI/PTFE membrane was compared with pure PBI, PBI with untreated PTFE, and PBI-Nafion with untreated PTFE membranes.
- Accelerated durability tests and SEM showed improved durability based the PBI/PTFE membrane with pretreated PTFE.