Meenakshi, S. and Bhat, S.D. and Sahu, AK. and Sridharan, D. and Pitchumani, S. (2013) Modified Sulfonated Poly(ether ether ketone) Based MixedMatrixMembranes for DirectMethanol Fuel Cells. Fuel Cells, 13 (5). pp. 851-861. ISSN 1615-6846
PDF
Restricted to Registered users only Download (511Kb) | Request a copy |
Abstract
Mixed matrix membranes based on zeolite 4A-methane sulfonic acid (MSA)-sulfonated poly(ether ether ketone) (SPEEK) are evaluated as a potential polymer electrolyte membrane (PEM) for direct methanol fuel cells (DMFCs). Ion-exchange capacity, sorption of water, and water–methanol mixture, proton conductivity, and methanol permeability for the mixed-matrix membranes have been extensively investigated. The mixed-matrix membranes are also characterized for their cross-sectional morphology, mechanical, and thermal properties. DMFCs employing SPEEK-MSA (20 wt.%) blend, zeolite 4A (4 wt.%)-SPEEK-MSA (20 wt.%) mixed matrix membranes deliver peak power densities of 130 and 159 mW cm–2, respectively; while a peak power density of only 95 mW cm–2 is obtained for the DMFC employing pristine SPEEK membrane at 70 °C. The results showed that these SPEEK based mixed matrix membranes exhibit higher DMFC performance and lower methanol permeability in comparison to Nafion-117 membrane
Item Type: | Article |
---|---|
Uncontrolled Keywords: | DMFC; Methanol Permeability; Mixed Matrix Membrane; SPEEK-MSA blend |
Subjects: | Fuel Cells Electrochemical Power Sources |
Divisions: | UNSPECIFIED |
Depositing User: | Dr. N Meyyappan |
Date Deposited: | 05 Jan 2015 05:07 |
Last Modified: | 05 Jan 2015 05:07 |
URI: | http://cecri.csircentral.net/id/eprint/3117 |
Actions (login required)
View Item |