Composite membranes to reduce crossover in PEM fuel cells
G. A. Deluga, S. C. Kelley, B. Pivovar, D. A. Shores, William H Smyrl
Chemical Engineering and Materials Science
Nafion has long been the standard polymer for use in polymer electrolyte membrane (PEM) fuel cells. The main purpose for the electrolyte is to allow protons to pass through freely while being a barrier to electrons and reactants. Nafion fails as a barrier to methanol solutions, and thus much research has been carried out to find a replacement for Nafion in liquid feed direct methanol fuel cells. In the present work, the authors present a method to modify both polybenzimidazole (PBI) and Nafion to make an improved methanol barrier while maintaining suitable proton conductivity. PBI was chemically modified, by sulfonation, ((s)-PBI) to make it an intrinsic proton conductor and deposited as an additional layer on a Nafion membrane. The addition of (s)-PBI to Nafion creates a composite polymer electrolyte that is a reasonable proton conductor while reducing the crossover of methanol.
Long Beach 2000 - 15th Annual Battery Conference on Applications and Advances
https://doi.org/10.1109/BCAA.2000.838371
15th Annual Battery Conference on Applications and Advances - Long Beach, United States
Duration: Jan 11 2000 → Jan 14 2000
15th Annual Battery Conference on Applications and Advances
Biomembranes
10.1109/BCAA.2000.838371
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perfluorosulfonic acid Chemical Compounds
polybenzimidazole Physics & Astronomy
Composite membranes Engineering & Materials Science
Protons Engineering & Materials Science
fuel cells Physics & Astronomy
Proton exchange membrane fuel cells (PEMFC) Engineering & Materials Science
methyl alcohol Physics & Astronomy
Methanol Engineering & Materials Science
Deluga, G. A., Kelley, S. C., Pivovar, B., Shores, D. A., & Smyrl, W. H. (2000). Composite membranes to reduce crossover in PEM fuel cells. In Long Beach 2000 - 15th Annual Battery Conference on Applications and Advances (Vol. 2000-January, pp. 51-53). [838371] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/BCAA.2000.838371
Composite membranes to reduce crossover in PEM fuel cells. / Deluga, G. A.; Kelley, S. C.; Pivovar, B.; Shores, D. A.; Smyrl, William H.
Long Beach 2000 - 15th Annual Battery Conference on Applications and Advances. Vol. 2000-January Institute of Electrical and Electronics Engineers Inc., 2000. p. 51-53 838371.
Deluga, GA, Kelley, SC, Pivovar, B, Shores, DA & Smyrl, WH 2000, Composite membranes to reduce crossover in PEM fuel cells. in Long Beach 2000 - 15th Annual Battery Conference on Applications and Advances. vol. 2000-January, 838371, Institute of Electrical and Electronics Engineers Inc., pp. 51-53, 15th Annual Battery Conference on Applications and Advances, Long Beach, United States, 1/11/00. https://doi.org/10.1109/BCAA.2000.838371
Deluga GA, Kelley SC, Pivovar B, Shores DA, Smyrl WH. Composite membranes to reduce crossover in PEM fuel cells. In Long Beach 2000 - 15th Annual Battery Conference on Applications and Advances. Vol. 2000-January. Institute of Electrical and Electronics Engineers Inc. 2000. p. 51-53. 838371 https://doi.org/10.1109/BCAA.2000.838371
Deluga, G. A. ; Kelley, S. C. ; Pivovar, B. ; Shores, D. A. ; Smyrl, William H. / Composite membranes to reduce crossover in PEM fuel cells. Long Beach 2000 - 15th Annual Battery Conference on Applications and Advances. Vol. 2000-January Institute of Electrical and Electronics Engineers Inc., 2000. pp. 51-53
@inproceedings{d308d1d3be314c0b924e7a747a96b408,
title = "Composite membranes to reduce crossover in PEM fuel cells",
abstract = "Nafion has long been the standard polymer for use in polymer electrolyte membrane (PEM) fuel cells. The main purpose for the electrolyte is to allow protons to pass through freely while being a barrier to electrons and reactants. Nafion fails as a barrier to methanol solutions, and thus much research has been carried out to find a replacement for Nafion in liquid feed direct methanol fuel cells. In the present work, the authors present a method to modify both polybenzimidazole (PBI) and Nafion to make an improved methanol barrier while maintaining suitable proton conductivity. PBI was chemically modified, by sulfonation, ((s)-PBI) to make it an intrinsic proton conductor and deposited as an additional layer on a Nafion membrane. The addition of (s)-PBI to Nafion creates a composite polymer electrolyte that is a reasonable proton conductor while reducing the crossover of methanol.",
keywords = "Biomembranes, Chemicals, Conductivity, Conductors, Electrons, Feeds, Fuel cells, Methanol, Polymers, Protons",
author = "Deluga, {G. A.} and Kelley, {S. C.} and B. Pivovar and Shores, {D. A.} and Smyrl, {William H}",
doi = "10.1109/BCAA.2000.838371",
volume = "2000-January",
booktitle = "Long Beach 2000 - 15th Annual Battery Conference on Applications and Advances",
note = "15th Annual Battery Conference on Applications and Advances ; Conference date: 11-01-2000 Through 14-01-2000",
T1 - Composite membranes to reduce crossover in PEM fuel cells
AU - Deluga, G. A.
AU - Kelley, S. C.
AU - Pivovar, B.
AU - Shores, D. A.
AU - Smyrl, William H
N2 - Nafion has long been the standard polymer for use in polymer electrolyte membrane (PEM) fuel cells. The main purpose for the electrolyte is to allow protons to pass through freely while being a barrier to electrons and reactants. Nafion fails as a barrier to methanol solutions, and thus much research has been carried out to find a replacement for Nafion in liquid feed direct methanol fuel cells. In the present work, the authors present a method to modify both polybenzimidazole (PBI) and Nafion to make an improved methanol barrier while maintaining suitable proton conductivity. PBI was chemically modified, by sulfonation, ((s)-PBI) to make it an intrinsic proton conductor and deposited as an additional layer on a Nafion membrane. The addition of (s)-PBI to Nafion creates a composite polymer electrolyte that is a reasonable proton conductor while reducing the crossover of methanol.
AB - Nafion has long been the standard polymer for use in polymer electrolyte membrane (PEM) fuel cells. The main purpose for the electrolyte is to allow protons to pass through freely while being a barrier to electrons and reactants. Nafion fails as a barrier to methanol solutions, and thus much research has been carried out to find a replacement for Nafion in liquid feed direct methanol fuel cells. In the present work, the authors present a method to modify both polybenzimidazole (PBI) and Nafion to make an improved methanol barrier while maintaining suitable proton conductivity. PBI was chemically modified, by sulfonation, ((s)-PBI) to make it an intrinsic proton conductor and deposited as an additional layer on a Nafion membrane. The addition of (s)-PBI to Nafion creates a composite polymer electrolyte that is a reasonable proton conductor while reducing the crossover of methanol.
KW - Biomembranes
KW - Chemicals
KW - Conductivity
KW - Conductors
KW - Feeds
KW - Fuel cells
KW - Methanol
KW - Polymers
KW - Protons
U2 - 10.1109/BCAA.2000.838371
DO - 10.1109/BCAA.2000.838371
VL - 2000-January
BT - Long Beach 2000 - 15th Annual Battery Conference on Applications and Advances
T2 - 15th Annual Battery Conference on Applications and Advances
Y2 - 11 January 2000 through 14 January 2000