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Issue 29, 2014
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Cellulose nanowhiskers to regulate the microstructure of perfluorosulfonate ionomers for high-performance fuel cells

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Abstract

Cellulose whiskers (CWs) were explored as effective nanostructures to manipulate the microstructure of Nafion® membranes for high-performance fuel cell applications. Electrochemical impedance measurements revealed that not only the proton conductivity of the nanocomposite membranes comprising 5 wt% CWs was remarkably increased, but the higher conductivity was also retained at higher temperatures (>100 °C). Moreover, it was found that the inclusion of CWs into a Nafion® matrix provides considerably suppressed methanol permeability. The direct methanol–air single fuel cell test using 5 M methanol solution at 70 °C showed a higher maximum power density of 91 mW cm−2 for the nanocomposite membrane, compared to 28 and 47 mW cm−2 for unmodified Nafion®. Hence, CWs could be considered as effective and elegant nanostructures to regulate the ionic microstructure and alleviate critical drawbacks of Nafion membranes for commercial direct methanol fuel cell applications.

Graphical abstract: Cellulose nanowhiskers to regulate the microstructure of perfluorosulfonate ionomers for high-performance fuel cells

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Publication details

The article was received on 06 Feb 2014, accepted on 25 Apr 2014 and first published on 25 Apr 2014


Article type: Paper
DOI: 10.1039/C4TA00635F
J. Mater. Chem. A, 2014,2, 11334-11340

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    Cellulose nanowhiskers to regulate the microstructure of perfluorosulfonate ionomers for high-performance fuel cells

    M. M. Hasani-Sadrabadi, E. Dashtimoghadam, R. Nasseri, A. Karkhaneh, F. S. Majedi, N. Mokarram, P. Renaud and K. I. Jacob, J. Mater. Chem. A, 2014, 2, 11334
    DOI: 10.1039/C4TA00635F

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