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Characterization and performance of proton exchange membranes for direct methanol fuel cell: Blending of sulfonated poly(ether ether ketone) with charged surface modifying macromolecule

M. N. A., Mohd Norddin and Ismail, Ahmad Fauzi and Rana, D. and Matsuura, T. and Tabe-Mohammadi, A. (2008) Characterization and performance of proton exchange membranes for direct methanol fuel cell: Blending of sulfonated poly(ether ether ketone) with charged surface modifying macromolecule. Journal of Membrane Science, 323 . pp. 404-413. ISSN 0376-7388

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Official URL: http://dx.doi.org/10.1016/j.memsci.2008.06.051

Abstract

Modification of sulfonated poly(ether ether ketone) (SPEEK) membrane was attempted by blending charged surface modifying macromolecule (cSMM). The modified membrane was tested for direct methanol fuel cell (DMFC) application; i.e. a SPEEK/cSMM blend membrane was compared to a SPEEK membrane and a Nafion 112 membrane for the thermal and mechanical stability, methanol permeability, and proton conductivity. Thermal and mechanical stability of the blended membrane were slightly reduced from the SPEEK membrane but still higher than the Nafion 112 membrane. The blend membrane was found to be promising for DMFC applications because of its lower methanol diffusivity (2.75×10−7 cm2 s−1) and higher proton conductivity (6.4×10−3 Scm−1), than the SPEEK membrane. A plausible explanation was given for the favorable effect of cSMM blending

Item Type:Article
Uncontrolled Keywords:Direct methanol fuel cell, proton exchange membrane, sulfonated poly(ether ether ketone), charged surface modifying macromolecule, blend membrane
Subjects:T Technology > TP Chemical technology
Divisions:Chemical and Natural Resources Engineering (Formerly known)
ID Code:7197
Deposited By: Nur Amal Zakiah Shamsudin
Deposited On:01 Jan 2009 08:34
Last Modified:01 Jan 2009 08:34

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