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Cited by 383

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Poly(ethylene-co-tetrafluoroethylene)-Derived Radiation-Grafted Anion-Exchange Membrane with Properties Specifically Tailored for Application in Metal-Cation-Free Alkaline Polymer Electrolyte Fuel Cells

Varcoe, John R., Slade, Robert C. T., Lam How Yee, Eric, Poynton, Simon D., Driscoll, Daniel J., Apperley, David C.·2007·Chemistry of Materials
DOI 10.1021/cm062407u
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Abstract

A new class of stable poly(ethylene- co -tetrafluoroethylene)-based alkaline anion-exchange membrane (AAEM) with enhanced tensile strength has been synthesized in response to the poor mechanical properties of previously reported poly(tetrafluoroethylene- co -hexafluoropropylene) radiation-grafted AAEMs; this type of AAEM exhibits significant through-plane conductivities (up to 0.034 ± 0.004 S cm -1 at 50 °C in water: conductivities that match requirements for application in fuel cells). The methanol permeabilities of this new AAEM class were found to be substantially reduced relative to Nafion-115 proton-exchange membranes; this offers the prospect that thin, low-resistance membranes may be used in direct methanol alkaline fuel cells with reduced methanol crossover. The fuel cell power performances obtained in a H 2 /O 2 single fuel cell at 50 °C with this AAEM is now within 1 order of magnitude of state-of-the-art Nafion-based fuel cells. It is evident that the alkaline ionomers are not the primary performance limiters of alkaline membrane fuel cells; performances are currently limited by the electrode architectures that have been optimized for use in PEM fuel cells but not alkaline fuel cells. The need for electrodes and catalyst structures that have been specifically tailored for use in AAEM-containing fuel cells is highlighted.

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Metadata

Authors
Varcoe, J. R., Slade, R. C. T., Lam How Yee, E., Poynton, S. D., Driscoll, D. J., & Apperley, D. C.
Venue
Chemistry of Materials
Publisher
American Chemical Society (ACS)
Published
2007-04-24
Volume
19
Issue
10
Pages
2686-2693
ISSN
  • 0897-4756 (ISSN-L)
  • 1520-5002
DOI
10.1021/cm062407u
OpenAlex
W2004019936
Cited by
383
References
0
FWCI
18.59
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Poly(ethylene-co-tetrafluoroethylene)-Derived Radiation-Grafted Anion-Exchange Membrane with Properties Specifically Tailored for Application in Metal-Cation-Free Alkaline Polymer Electrolyte Fuel Cells. https://app.cochat.ai/papers/10.1021/cm062407u
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Varcoe, J. R., Slade, R. C. T., Lam How Yee, E., Poynton, S. D., Driscoll, D. J., & Apperley, D. C. (2007). Poly(ethylene-co-tetrafluoroethylene)-Derived Radiation-Grafted Anion-Exchange Membrane with Properties Specifically Tailored for Application in Metal-Cation-Free Alkaline Polymer Electrolyte Fuel Cells. Chemistry of Materials. https://doi.org/10.1021/cm062407u

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