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Issue 20, 2013
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Nafion/chitosan-wrapped CNT nanocomposite membrane for high-performance direct methanolfuel cells

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Abstract

Here we show that the transport properties and electrochemical performance of polyelectrolyte membranes are improved through the dispersion of chitosan-wrapped carbon nanotubes, for direct methanol fuel cell applications. Methanol permeability is reduced via improving the interfacial interactions and the solubilization of CNTs in the Nafion matrix, as well as inducing the formation of long-range oriented conduction pathways in the vicinity of the decorated one-dimensional nanostructure. The improved membrane selectivity results in a considerably enhanced fuel cell efficiency (16% vs. 11%) and a power generation capacity more than two times higher (110 mW cm−2vs. 47 mW cm−2) in a concentrated methanol solution (5 M), in comparison with the commercial Nafion®117 membrane.

Graphical abstract: Nafion/chitosan-wrapped CNT nanocomposite membrane for high-performance direct methanol fuel cells

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Supplementary files

Article information


Submitted
28 Jan 2013
Accepted
07 Mar 2013
First published
07 Mar 2013

RSC Adv., 2013,3, 7337-7346
Article type
Paper

Nafion/chitosan-wrapped CNT nanocomposite membrane for high-performance direct methanol fuel cells

M. M. Hasani-Sadrabadi, E. Dashtimoghadam, F. S. Majedi, S. Wu, A. Bertsch, H. Moaddel and P. Renaud, RSC Adv., 2013, 3, 7337
DOI: 10.1039/C3RA40480C

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