Nafion (R)-polybenzimidazole (PBI) composite membranes for DMFC applications
2007 (English)In: Solid State Ionics, ISSN 0167-2738, E-ISSN 1872-7689, Vol. 178, no 7-10, 581-585 p.Article in journal (Refereed) Published
Nafion®–PBI composites were prepared by diffusing synthesized PBI from solution phase into Nafion® membranes, using different concentrations and drying temperatures. In some cases, Nafion® was treated with diethyl amine to screen the –SO3H groups and thereby avoid the strong acid–base interactions between the polymers during diffusion. The presence of PBI in the membranes was characterized with FT–IR spectroscopy. The performance of the membranes was studied by in-plane conductivity and methanol permeability. The performance ratio (the ratio between conductivity and methanol permeability compared to Nafion®) increased by up to 50% for the composite membranes compared to Nafion®.
Place, publisher, year, edition, pages
2007. Vol. 178, no 7-10, 581-585 p.
DMFC, Nafion®, PBI, Composite membranes, Proton conductivity, Methanol permeability
IdentifiersURN: urn:nbn:se:uu:diva-13941DOI: 10.1016/j.ssi.2007.01.014ISI: 000246952300020OAI: oai:DiVA.org:uu-13941DiVA: diva2:41711