Development of direct methanol alkaline fuel cells using anion exchange membranes
Development of direct methanol alkaline fuel cells using anion exchange membranes
Research into the development of direct methanol alkaline fuel cell (DMAFC) using an anion exchange polymer electrolyte membrane is described. The commercial membrane used had a higher electric resistance, but a lower methanol diffusion coefficient than Nafion® membranes. Fuel cell tests were performed using carbon supported Pt catalyst, and the effect of temperature, methanol concentration, methanol flow rate, air pressure and Pt loading were investigated. It was found that the cell performance improved drastically with a membrane assembly electrode (MEA) which did not include the gas diffusion layer on the anode, because of lower reactant mass transfer resistance. To give suitable cathode performance, humidification of the air and a subtle balance between the air pressure and water transport is required.
Alkaline media, Anion exchange membranes, Methanol crossover, Poisoning
248-256
Yu, Eileen Hao
28e47863-4b50-4821-b80b-71fb5a2edef2
Scott, Keith
38909157-296d-4fe7-a245-1b98e1fee913
29 October 2004
Yu, Eileen Hao
28e47863-4b50-4821-b80b-71fb5a2edef2
Scott, Keith
38909157-296d-4fe7-a245-1b98e1fee913
Yu, Eileen Hao and Scott, Keith
(2004)
Development of direct methanol alkaline fuel cells using anion exchange membranes.
Journal of Power Sources, 137 (2), .
(doi:10.1016/j.jpowsour.2004.06.004).
Abstract
Research into the development of direct methanol alkaline fuel cell (DMAFC) using an anion exchange polymer electrolyte membrane is described. The commercial membrane used had a higher electric resistance, but a lower methanol diffusion coefficient than Nafion® membranes. Fuel cell tests were performed using carbon supported Pt catalyst, and the effect of temperature, methanol concentration, methanol flow rate, air pressure and Pt loading were investigated. It was found that the cell performance improved drastically with a membrane assembly electrode (MEA) which did not include the gas diffusion layer on the anode, because of lower reactant mass transfer resistance. To give suitable cathode performance, humidification of the air and a subtle balance between the air pressure and water transport is required.
This record has no associated files available for download.
More information
Published date: 29 October 2004
Keywords:
Alkaline media, Anion exchange membranes, Methanol crossover, Poisoning
Identifiers
Local EPrints ID: 498534
URI: http://eprints.soton.ac.uk/id/eprint/498534
ISSN: 0378-7753
PURE UUID: 191ac79e-17d3-461c-8bd4-49a51947a1ca
Catalogue record
Date deposited: 20 Feb 2025 18:13
Last modified: 22 Feb 2025 03:13
Export record
Altmetrics
Contributors
Author:
Eileen Hao Yu
Author:
Keith Scott
Download statistics
Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.
View more statistics