Computer Modeling Illuminates Degradation Pathways of Cations in Alkaline Membrane Fuel Cells (Fact Sheet) [report]

2012 unpublished
Cation degradation insights obtained by computational modeling could result in better performance and longer lifetime for alkaline membrane fuel cells. Reference: Long, H.; Kim, K.; Pivovar, B.S. (2012). "Hydroxide Degradation Pathways for Substituted Trimethylammonium Cations: A DFT Study. " J. Phys. Chem. C 116 (17), 9419-9426. Key Research Results Achievement NREL scientists used computational modeling to investigate cation degradation pathways to improve the lifetime of alkaline membrane
more » ... lkaline membrane fuel cells. Key Result Hofmann elimination was found to be the main degradation pathway. Some steric effects are useful to make the cation more stable. Potential Impact This research can lead to a more stable anion exchange membrane and thus a less expensive and more durable fuel cell in the future. NREL is a national laboratory of the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, operated by the Alliance for Sustainable Energy, LLC. 15013 Denver West Parkway | Golden, CO 80401 | 303-275-3000 | www.nrel.gov NREL/FS-2C00-55868 • August 2012 Printed with a renewable-source ink on paper containing at least 50% wastepaper, including 10% post consumer waste.
doi:10.2172/1049598 fatcat:se552hhurvhgritphdmhj4vkse