Proton conductive membranes of sulfonated poly(ether ketone ketone)

S. Vetter; B. Ruffmann; I. Buder; S. P. Nunes

doi:10.1016/j.memsci.2005.02.036

Proton conductive membranes of sulfonated poly(ether ketone ketone)

S. Vetter, B. Ruffmann, I. Buder, S. P. Nunes^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

77 Scopus citations

Abstract

Poly(ether ketone ketone) was sulfonated using fumic sulfuric acid and used for preparation of proton conductive membranes. The sulfonation degree was evaluated by elemental and thermal analysis and the IEC values were determined by titration. The proton conductivity of membranes with sulfonation degrees up to 70% was determined as a function of temperature by impedance spectroscopy. Membranes with sulfonation degree 38-70% were tested in DMFC experiments. Their performance was comparable to Nafion^® with the same pretreatment and clearly better than sulfonated poly(ether ether ketone) membranes with similar functionalization. The methanol crossover was lower than that of Nafion^® in the same conditions.

Original language	English (US)
Pages (from-to)	181-186
Number of pages	6
Journal	Journal of Membrane Science
Volume	260
Issue number	1-2
DOIs	https://doi.org/10.1016/j.memsci.2005.02.036
State	Published - Sep 1 2005
Externally published	Yes

Keywords

Direct methanol fuel cell
Poly(ether ketone ketone)
Sulfonated poly arylketone

ASJC Scopus subject areas

Biochemistry
General Materials Science
Physical and Theoretical Chemistry
Filtration and Separation

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10.1016/j.memsci.2005.02.036

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title = "Proton conductive membranes of sulfonated poly(ether ketone ketone)",

abstract = "Poly(ether ketone ketone) was sulfonated using fumic sulfuric acid and used for preparation of proton conductive membranes. The sulfonation degree was evaluated by elemental and thermal analysis and the IEC values were determined by titration. The proton conductivity of membranes with sulfonation degrees up to 70% was determined as a function of temperature by impedance spectroscopy. Membranes with sulfonation degree 38-70% were tested in DMFC experiments. Their performance was comparable to Nafion{\textregistered} with the same pretreatment and clearly better than sulfonated poly(ether ether ketone) membranes with similar functionalization. The methanol crossover was lower than that of Nafion{\textregistered} in the same conditions.",

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T1 - Proton conductive membranes of sulfonated poly(ether ketone ketone)

AU - Vetter, S.

AU - Ruffmann, B.

AU - Buder, I.

AU - Nunes, S. P.

PY - 2005/9/1

Y1 - 2005/9/1

N2 - Poly(ether ketone ketone) was sulfonated using fumic sulfuric acid and used for preparation of proton conductive membranes. The sulfonation degree was evaluated by elemental and thermal analysis and the IEC values were determined by titration. The proton conductivity of membranes with sulfonation degrees up to 70% was determined as a function of temperature by impedance spectroscopy. Membranes with sulfonation degree 38-70% were tested in DMFC experiments. Their performance was comparable to Nafion® with the same pretreatment and clearly better than sulfonated poly(ether ether ketone) membranes with similar functionalization. The methanol crossover was lower than that of Nafion® in the same conditions.

AB - Poly(ether ketone ketone) was sulfonated using fumic sulfuric acid and used for preparation of proton conductive membranes. The sulfonation degree was evaluated by elemental and thermal analysis and the IEC values were determined by titration. The proton conductivity of membranes with sulfonation degrees up to 70% was determined as a function of temperature by impedance spectroscopy. Membranes with sulfonation degree 38-70% were tested in DMFC experiments. Their performance was comparable to Nafion® with the same pretreatment and clearly better than sulfonated poly(ether ether ketone) membranes with similar functionalization. The methanol crossover was lower than that of Nafion® in the same conditions.

KW - Direct methanol fuel cell

KW - Poly(ether ketone ketone)

KW - Sulfonated poly arylketone

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DO - 10.1016/j.memsci.2005.02.036

M3 - Article

AN - SCOPUS:22144438362

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JO - Journal of Membrane Science

JF - Journal of Membrane Science

IS - 1-2

ER -

Proton conductive membranes of sulfonated poly(ether ketone ketone)

Abstract

Keywords

ASJC Scopus subject areas

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