Phosphoric Acid‐Immobilized Polybenzimidazole Hybrid Membranes with TiO2 Nanowires for High‐Temperature Polymer Electrolyte Membrane Fuel Cells
Abstrak
Polymer electrolyte membrane fuel cells (PEMFCs) have attracted significant attention as next‐generation clean compact power sources. In this study phosphoric‐acid‐doped polybenzimidazole (PBI) membranes with added itanium dioxide nanowires are prepared to afford novel hybrid membranes that improve the performance and reliability of PEMFCs. Furthermore, the electrochemical and power generation properties of membrane‐electrode assemblies fabricated using the prepared hybrid electrolyte membranes are investigated. The swelling of the PBI membrane caused by phosphoric acid doping is suppressed by the titanium dioxide nanowires, thereby increasing the phosphoric acid concentration in the PBI membrane, even with very low dopant loadings. The increased proton conductivity and maximum power density are attributed to the increased phosphoric acid concentration in the membrane.
Topik & Kata Kunci
Penulis (8)
Ryo Kato
Yuki Nakamura
Keiichiro Maegawa
Reiko Matsuda
Masayo Takahashi
Satoshi Obokata
Kazuhiro Hikima
Atsunori Matsuda
Format Sitasi
Akses Cepat
- Tahun Terbit
- 2025
- Sumber Database
- DOAJ
- DOI
- 10.1002/celc.202500238
- Akses
- Open Access ✓