Neergat, M. ; Shukla, A. K. (2002) Effect of diffusion-layer morphology on the performance of solid-polymer-electrolyte direct methanol fuel cells Journal of Power Sources, 104 (2). pp. 289-294. ISSN 0378-7753
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Official URL: http://www.sciencedirect.com/science/article/pii/S...
Related URL: http://dx.doi.org/10.1016/S0378-7753(01)00877-1
Abstract
The performance of solid-polymer-electrolyte direct methanol fuel cells (SPE-DMFCs) is substantially influenced by the morphology of the gas diffusion-layer in the catalytic electrodes. Cells utilising gas diffusion-layers made with high surface-area Ketjen Black carbon, at an optimised thickness, show better performance compared with cells utilising Vulcan XC-72 carbon or 'acetylene black' carbon in the diffusion-layer. The cells with a hydrophilic diffusion-layer on the anodes and a hydrophobic diffusion-layer on the cathodes yield better performance. The cells with oxygen or air as the oxidant gave power density of 250 or 105 mW cm-2, respectively, at an operational temperature of 90 ° C and 2 bar pressure.
Item Type: | Article |
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Source: | Copyright of this article belongs to Elsevier Science. |
Keywords: | Direct Methanol Fuel Cells; Diffusion-layer Morphology; High Surface-area Carbon |
ID Code: | 81845 |
Deposited On: | 07 Feb 2012 11:28 |
Last Modified: | 07 Feb 2012 11:28 |
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