Polyetheretherketone Membranes for Elevated Temperature PEMFCs

Lakshmanan, Balasubramanian; Huang, Wayne; Olmeijer, David L.; Weidner, John W.

doi:10.1149/1.1619647

Cited by 67 publications

(38 citation statements)

References 13 publications

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“…Very limited fuel cell data using these PAEs are available in the open literature, probably due to the insufficient mechanical stability of the highly sulfonated membranes [85,86]. Later, several researchers developed ways to reduce the water uptake without significant loss of proton conductivity by utilizing specific interactions such as chemical/physical cross-linking [87][88][89][90]. Lakshmanan et al reported the H 2 /air fuel cell performance of sulfonated PEEK-based membranes having acid-base interaction at 75 8C.…”

Section: Hydrogen Fuel Cellsmentioning

confidence: 99%

“…Lakshmanan et al reported the H 2 /air fuel cell performance of sulfonated PEEK-based membranes having acid-base interaction at 75 8C. The current density of the MEA using the membrane (IEC ¼ $1.7 meq/g, 100 mm thick) was 0.51 A/cm 2 at 0.6 V, which was 19 % lower than the MEA using Nafion 117 [87]. The performance difference decreased to 5 % when the operating temperature increased to 120 8C.…”

Section: Hydrogen Fuel Cellsmentioning

confidence: 99%

See 1 more Smart Citation

Sulfonated Poly(aryl ether)‐Type Polymers as Proton Exchange Membranes: Synthesis and Performance

Liu

Kim

Guiver

et al. 2007

Membranes for Energy Conversion

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Section: Hydrogen Fuel Cellsmentioning

confidence: 99%

Section: Hydrogen Fuel Cellsmentioning

confidence: 99%

Sulfonated Poly(aryl ether)‐Type Polymers as Proton Exchange Membranes: Synthesis and Performance

Liu

Kim

Guiver

et al. 2007

Membranes for Energy Conversion

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“…The major drawback of these non fluorinated polymers is their low durability under fuel cell operating conditions [16,24]. Membrane life time can be evaluated directly in fuel cell.…”

Section: Introductionmentioning

confidence: 99%

Ageing Mechanisms of Proton Exchange Membrane Used in Fuel Cell Applications

et al. 2006

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Degradation processes of both sulfonated polyimide (sPI) and sulfonated polyetheretherketone (sPEEK) membranes were studied in‐situ in fuel cells. Ex‐situ ageing protocols were developed for both polymers and model compounds. On the one hand sulfonated polyimides are shown to be mainly sensitive to hydrolysis though an additional thermo activated oxidation process occurs in fuel cell conditions and at least accelerates the degradation. On the other hand sulfonated polyetheretherketone are insensitive to hydrolysis but greatly degraded in an oxidative medium.

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“…Lakshmanan et al reported the H 2 /air fuel cell performance of sulfonated PEEK-based membranes having acid-base interaction at 75 • C. The current density of the MEA using the membrane (IEC 1.7 mequiv. g −1 ,1 00m) was 19% lower than the MEA using Nafion 117 [14]. Kerres reported fuel cell performance of PAE membranes having ionic or covalent cross-linking [15].…”

Section: Resultsmentioning

confidence: 92%

“…1. The improved performance of Ph-SPEEKK could be explained by a combination of proton conductivity comparable with Nafion and a lower relative methanol crossover, as supported by the lower methanol crossover limit- ing current density [13,14]. Proton conductivities derived from HFR measurements and methanol permeabilities derived from methanol crossover limiting current [11] were used to evaluate the materials.…”

Section: Resultsmentioning

confidence: 99%

Homopolymer-like sulfonated phenyl- and diphenyl-poly(arylene ether ketone)s for fuel cell applications

Liu

Kim

et al. 2008

Journal of Power Sources

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/npsi/ctrl?action=rtdoc&an=1884312&lang=en http://nparc.cisti-icist.nrc-cnrc.gc.ca/npsi/ctrl?action=rtdoc&an=1884312&lang=fr READ THESE TERMS AND CONDITIONS CAREFULLY BEFORE USING THIS WEBSITE.http://nparc.cisti-icist.nrc-cnrc.gc.ca/npsi/jsp/nparc_cp.jsp?lang=en Vous avez des questions? Nous pouvons vous aider. Pour communiquer directement avec un auteur, consultez la première page de la revue dans laquelle son article a été publié afin de trouver ses coordonnées. Si vous n'arrivez pas à les repérer, communiquez avec nous à PublicationsArchive-ArchivesPublications@nrc-cnrc.gc.ca. Questions?Contact the NRC Publications Archive team at PublicationsArchive-ArchivesPublications@nrc-cnrc.gc.ca. If you wish to email the authors directly, please see the first page of the publication for their contact information. NRC Publications Archive Archives des publications du CNRCThis publication could be one of several versions: author's original, accepted manuscript or the publisher's version. / La version de cette publication peut être l'une des suivantes : la version prépublication de l'auteur, la version acceptée du manuscrit ou la version de l'éditeur. For the publisher's version, please access the DOI link below./ Pour consulter la version de l'éditeur, utilisez le lien DOI ci-dessous.http://doi.org/10.1016/j.jpowsour. 2008.08.088 Journal of Power Sources, 185, 2, pp. 899-903, 2008-12-01 Journal of Power Sources 185 (2008) Two series of homopolymer-like sulfonated aromatic poly(ether ketone)s (SPEKs) were readily prepared and post-sulfonated using mild conditions. The homopolymer-like SPEKs exhibited advantages in synthesis and physical properties over typical post-sulfonated random copolymers, such as rapid and mild sulfonation conditions, high molecular weights, site specificity and control over IEC, as well as an excellent combination of dimensional swelling stability, low methanol permeability and high proton conductivity. These beneficial membrane properties are reflected in the attractive direct methanol fuel cell (DMFC) and polymer electrolyte membrane fuel cell (PEMFC) performance of these homopolymer-like SPEKs as compared with typical random copolymer SPEKs. Crown

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Polyetheretherketone Membranes for Elevated Temperature PEMFCs

Cited by 67 publications

References 13 publications

Sulfonated Poly(aryl ether)‐Type Polymers as Proton Exchange Membranes: Synthesis and Performance

Sulfonated Poly(aryl ether)‐Type Polymers as Proton Exchange Membranes: Synthesis and Performance

Ageing Mechanisms of Proton Exchange Membrane Used in Fuel Cell Applications

Homopolymer-like sulfonated phenyl- and diphenyl-poly(arylene ether ketone)s for fuel cell applications

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