Polybenzimidazole Membranes Modified with Porous Aromatic Frameworks: Synthesis, Structure, Mechanical and Transport Properties
Moscow Power Engineering Institute · Kurchatov Institute · +6 more institutions
Abstract
High-temperature proton exchange membrane systems (HT-PEM) based on polybenzimidazole (PBI) membranes are a promising technology offering significant advantages over their low-temperature counterparts. A key challenge limiting its long-term durability is the leaching of phosphoric acid (PA) from the membrane during operation. This work introduces, for the first time, the strategy of modifying polybenzimidazole (PBI) membranes with amino-functionalized porous aromatic frameworks (PAF-20-NH2) to fundamentally enhance their PA retention and operational stability, a critical challenge for high-temperature PEM technologies. We propose that the synergistic combination of the framework’s nanoscale porosity and the…
Citation impact
- FWCI
- 35.01
- Percentile
- 99%
- References
- 40
Authors
10- DDDmitry D. Spasov
Moscow Power Engineering Institute, Kurchatov Institute
- RMRuslan M. Mensharapov
Kurchatov Institute
- MVMatvey V. Sinyakov
D. Mendeleyev University of Chemical Technology of Russia, Kurchatov Institute
- DEDarya E. Grineva
D. Mendeleyev University of Chemical Technology of Russia, Kurchatov Institute
- NANataliya A. Ivanova
Institute of Catalysis and Petrochemistry
Topics & keywords
- Membrane
- Porosity
- Phosphoric acid
- Limiting
- Conductivity
- Leaching (pedology)
- Proton exchange membrane fuel cell
- Durability