SPPO/PEI-based acid-base blend membranes for direct methanol fuel cells

Wen Chin Tsen, Fu Sheng Chuang, Yao Chi Shu, Chien Chung Chen, Chunli Gong, Sheng Wen

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

New acid-base polymer blends based on sulfonated poly(phenylene oxide) (SPPO) as the proton-conducting component and poly(ether imide) (PEI) as the basic component were considered for use as proton-exchange membranes (PEM). The obtained blend membranes had a higher thermal stability and a higher glass transition temperature (T g) than the pure SPPO, as revealed by TGA and DSC. The morphology of blend membranes indicated that PEI was highly compatible with SPPO polymers because of the formation of hydrogen bonds between the sulfonated acid and PEI. Although the blend membranes exhibited a lower water uptake and lower proton conductivity than the pure SPPO membrane, the PEI component improved the dimensional stability, mechanic properties, and especially inhibited methanol permeation. The methanol permeability coefficient of the blend membrane with 30 wt.% PEI content was 9.68×10 -8 cm 2/s, which is lower than that of the pure SPPO and just one tenth of that of Nafion® 112. This considerable reduction in methanol crossover revealed the feasibility of the blend membranes as promising electrolytes for direct methanol fuel cells.

Original languageEnglish
Article number071
JournalE-Polymers
Publication statusPublished - Jul 30 2011

Fingerprint

Polyetherimides
Direct methanol fuel cells (DMFC)
Oxides
fuel cells
methyl alcohol
membranes
Membranes
acids
Acids
oxides
Methanol
protons
Protons
Imides
dimensional stability
Proton conductivity
Dimensional stability
polymer blends
imides
Hydraulic conductivity

Keywords

  • Fuel cells
  • Poly(ether imide)
  • Polymer blend
  • Proton exchange membrane
  • Sulfonated poly(phenylene oxide)

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Physical and Theoretical Chemistry
  • Polymers and Plastics

Cite this

Tsen, W. C., Chuang, F. S., Shu, Y. C., Chen, C. C., Gong, C., & Wen, S. (2011). SPPO/PEI-based acid-base blend membranes for direct methanol fuel cells. E-Polymers, [071].

SPPO/PEI-based acid-base blend membranes for direct methanol fuel cells. / Tsen, Wen Chin; Chuang, Fu Sheng; Shu, Yao Chi; Chen, Chien Chung; Gong, Chunli; Wen, Sheng.

In: E-Polymers, 30.07.2011.

Research output: Contribution to journalArticle

Tsen WC, Chuang FS, Shu YC, Chen CC, Gong C, Wen S. SPPO/PEI-based acid-base blend membranes for direct methanol fuel cells. E-Polymers. 2011 Jul 30. 071.
Tsen, Wen Chin ; Chuang, Fu Sheng ; Shu, Yao Chi ; Chen, Chien Chung ; Gong, Chunli ; Wen, Sheng. / SPPO/PEI-based acid-base blend membranes for direct methanol fuel cells. In: E-Polymers. 2011.
@article{fbd4c875a49c4d43af6404aa29dabdcb,
title = "SPPO/PEI-based acid-base blend membranes for direct methanol fuel cells",
abstract = "New acid-base polymer blends based on sulfonated poly(phenylene oxide) (SPPO) as the proton-conducting component and poly(ether imide) (PEI) as the basic component were considered for use as proton-exchange membranes (PEM). The obtained blend membranes had a higher thermal stability and a higher glass transition temperature (T g) than the pure SPPO, as revealed by TGA and DSC. The morphology of blend membranes indicated that PEI was highly compatible with SPPO polymers because of the formation of hydrogen bonds between the sulfonated acid and PEI. Although the blend membranes exhibited a lower water uptake and lower proton conductivity than the pure SPPO membrane, the PEI component improved the dimensional stability, mechanic properties, and especially inhibited methanol permeation. The methanol permeability coefficient of the blend membrane with 30 wt.{\%} PEI content was 9.68×10 -8 cm 2/s, which is lower than that of the pure SPPO and just one tenth of that of Nafion{\circledR} 112. This considerable reduction in methanol crossover revealed the feasibility of the blend membranes as promising electrolytes for direct methanol fuel cells.",
keywords = "Fuel cells, Poly(ether imide), Polymer blend, Proton exchange membrane, Sulfonated poly(phenylene oxide)",
author = "Tsen, {Wen Chin} and Chuang, {Fu Sheng} and Shu, {Yao Chi} and Chen, {Chien Chung} and Chunli Gong and Sheng Wen",
year = "2011",
month = "7",
day = "30",
language = "English",
journal = "E-Polymers",
issn = "1618-7229",
publisher = "European Polymer Federation",

}

TY - JOUR

T1 - SPPO/PEI-based acid-base blend membranes for direct methanol fuel cells

AU - Tsen, Wen Chin

AU - Chuang, Fu Sheng

AU - Shu, Yao Chi

AU - Chen, Chien Chung

AU - Gong, Chunli

AU - Wen, Sheng

PY - 2011/7/30

Y1 - 2011/7/30

N2 - New acid-base polymer blends based on sulfonated poly(phenylene oxide) (SPPO) as the proton-conducting component and poly(ether imide) (PEI) as the basic component were considered for use as proton-exchange membranes (PEM). The obtained blend membranes had a higher thermal stability and a higher glass transition temperature (T g) than the pure SPPO, as revealed by TGA and DSC. The morphology of blend membranes indicated that PEI was highly compatible with SPPO polymers because of the formation of hydrogen bonds between the sulfonated acid and PEI. Although the blend membranes exhibited a lower water uptake and lower proton conductivity than the pure SPPO membrane, the PEI component improved the dimensional stability, mechanic properties, and especially inhibited methanol permeation. The methanol permeability coefficient of the blend membrane with 30 wt.% PEI content was 9.68×10 -8 cm 2/s, which is lower than that of the pure SPPO and just one tenth of that of Nafion® 112. This considerable reduction in methanol crossover revealed the feasibility of the blend membranes as promising electrolytes for direct methanol fuel cells.

AB - New acid-base polymer blends based on sulfonated poly(phenylene oxide) (SPPO) as the proton-conducting component and poly(ether imide) (PEI) as the basic component were considered for use as proton-exchange membranes (PEM). The obtained blend membranes had a higher thermal stability and a higher glass transition temperature (T g) than the pure SPPO, as revealed by TGA and DSC. The morphology of blend membranes indicated that PEI was highly compatible with SPPO polymers because of the formation of hydrogen bonds between the sulfonated acid and PEI. Although the blend membranes exhibited a lower water uptake and lower proton conductivity than the pure SPPO membrane, the PEI component improved the dimensional stability, mechanic properties, and especially inhibited methanol permeation. The methanol permeability coefficient of the blend membrane with 30 wt.% PEI content was 9.68×10 -8 cm 2/s, which is lower than that of the pure SPPO and just one tenth of that of Nafion® 112. This considerable reduction in methanol crossover revealed the feasibility of the blend membranes as promising electrolytes for direct methanol fuel cells.

KW - Fuel cells

KW - Poly(ether imide)

KW - Polymer blend

KW - Proton exchange membrane

KW - Sulfonated poly(phenylene oxide)

UR - http://www.scopus.com/inward/record.url?scp=80052095680&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=80052095680&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:80052095680

JO - E-Polymers

JF - E-Polymers

SN - 1618-7229

M1 - 071

ER -