High-temperature polybenzimidazol-based membranes
Advances in Electrocatalysis, Materials, Diagnostics and Durability
Conductive membranes for low-temperature fuel cells
Published Online: 15 DEC 2010
Copyright © John Wiley & Sons, Ltd. All rights reserved.
Handbook of Fuel Cells
How to Cite
Seel, D. C., Benicewicz, B. C., Xiao, L. and Schmidt, T. J. 2010. High-temperature polybenzimidazol-based membranes. Handbook of Fuel Cells. .
- Published Online: 15 DEC 2010
High-temperature polybenzimidazole-based membranes Polybenzimidazole (PBI) is an excellent material for phosphoric acid-doped proton exchange membranes. PBI-based membranes can operate reliably at temperatures above 120 °C, which provides high CO tolerance, fast electrode kinetics, and simplified water and thermal management. PBI membranes prepared by the polyphosphoric acid (PPA) process exhibit improved mechanical properties, proton conductivities, and fuel cell operational characteristics at higher phosphoric acid loading levels compared to the conventionally prepared PBI-based membranes for high-temperature fuel cell applications.
- high-temperature polymer electrolyte membrane (PEM);
- phosphoric acid (PA);
- polybenzimidazole (PBI);
- PPA process