Molecular Design Aspect of Sulfonated Polymers for Direct Methanol Fuel Cells

Dae Sik Kim; Michael Guiver; James E. McGrath; Bryan S. Pivovar; Yu Seung Kim

doi:10.1149/1.3484566

Molecular Design Aspect of Sulfonated Polymers for Direct Methanol Fuel Cells

Dae Sik Kim, Michael Guiver, James E. McGrath, Bryan S. Pivovar, Yu Seung Kim

Chemistry and Nanoscience

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

13 Scopus Citations

Abstract

Molecular structural effects of sulfonated polymers for direct methanol fuel cells (DMFCs) are investigated using a length scale parameter, Percent Conducting Volume (PCV). Sulfonated polymers were categorized based on molecular composition (nanometer length scale) and polymer architecture (sub micrometer length scale) and plotted methanol permeability as a function of PCV and molecular structure. Polymers having functional group such as base moiety, hydrogen bonding, or cross-linking agent showed the least methanol permeability while fluorinated polymers showed the highest methanol permeability at a given PCV. DMFC performance of selected sulfonated polymers is presented in order to support the analysis.

Original language	American English
Pages (from-to)	711-717
Number of pages	7
Journal	ECS Transactions
Volume	33
Issue number	1
DOIs	https://doi.org/10.1149/1.3484566 https://doi.org/10.1149/1.3484566
State	Published - 2010
Event	10th Polymer Electrolyte Fuel Cell Symposium, PEFC 10 - 218th ECS Meeting - Las Vegas, NV, United States Duration: 10 Oct 2010 → 15 Oct 2010

NREL Publication Number

NREL/JA-5600-48744

Keywords

direct methanol fuel cells

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title = "Molecular Design Aspect of Sulfonated Polymers for Direct Methanol Fuel Cells",

abstract = "Molecular structural effects of sulfonated polymers for direct methanol fuel cells (DMFCs) are investigated using a length scale parameter, Percent Conducting Volume (PCV). Sulfonated polymers were categorized based on molecular composition (nanometer length scale) and polymer architecture (sub micrometer length scale) and plotted methanol permeability as a function of PCV and molecular structure. Polymers having functional group such as base moiety, hydrogen bonding, or cross-linking agent showed the least methanol permeability while fluorinated polymers showed the highest methanol permeability at a given PCV. DMFC performance of selected sulfonated polymers is presented in order to support the analysis.",

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author = "Kim, {Dae Sik} and Michael Guiver and McGrath, {James E.} and Pivovar, {Bryan S.} and Kim, {Yu Seung}",

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T1 - Molecular Design Aspect of Sulfonated Polymers for Direct Methanol Fuel Cells

AU - Kim, Dae Sik

AU - Guiver, Michael

AU - McGrath, James E.

AU - Pivovar, Bryan S.

AU - Kim, Yu Seung

PY - 2010

Y1 - 2010

N2 - Molecular structural effects of sulfonated polymers for direct methanol fuel cells (DMFCs) are investigated using a length scale parameter, Percent Conducting Volume (PCV). Sulfonated polymers were categorized based on molecular composition (nanometer length scale) and polymer architecture (sub micrometer length scale) and plotted methanol permeability as a function of PCV and molecular structure. Polymers having functional group such as base moiety, hydrogen bonding, or cross-linking agent showed the least methanol permeability while fluorinated polymers showed the highest methanol permeability at a given PCV. DMFC performance of selected sulfonated polymers is presented in order to support the analysis.

AB - Molecular structural effects of sulfonated polymers for direct methanol fuel cells (DMFCs) are investigated using a length scale parameter, Percent Conducting Volume (PCV). Sulfonated polymers were categorized based on molecular composition (nanometer length scale) and polymer architecture (sub micrometer length scale) and plotted methanol permeability as a function of PCV and molecular structure. Polymers having functional group such as base moiety, hydrogen bonding, or cross-linking agent showed the least methanol permeability while fluorinated polymers showed the highest methanol permeability at a given PCV. DMFC performance of selected sulfonated polymers is presented in order to support the analysis.

KW - direct methanol fuel cells

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DO - 10.1149/1.3484566

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EP - 717

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JF - ECS Transactions

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T2 - 10th Polymer Electrolyte Fuel Cell Symposium, PEFC 10 - 218th ECS Meeting

Y2 - 10 October 2010 through 15 October 2010

ER -

Molecular Design Aspect of Sulfonated Polymers for Direct Methanol Fuel Cells

Abstract

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