Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1298857 | Solid State Ionics | 2007 | 8 Pages |
Abstract
A series of composite membranes based on zeolite A and Nafion 117 have been fabricated for direct methanol fuel cells. The external surface of zeolite A has been modified to enhance the interface bonding between inorganic zeolite crystals and Nafion ionomer. The modified zeolite samples have been characterised using a combination of thermal analysis and spectroscopic techniques. Methanol permeability of Nafion 117 could be reduced by as much as 86% by incorporating functionalised zeolite NaA crystals into the membrane. The effect of different functionalisation level is discussed.
Keywords
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Physical Sciences and Engineering
Chemistry
Electrochemistry
Authors
Xiao Li, Edward P.L. Roberts, Stuart M. Holmes, Vladimir Zholobenko,