Multiphase polymer membranes for direct methanol fuel cell

Sung Chul Kim, Dong-Hwee Kim, Jisu Choi, Yo Han Kwon, Sang Young Lee

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The purpose of the present work is the development of new multiphase polymer electrolyte membranes substituting Nafion. To reduce the methanol permeability and the cost of the current Nafion membranes, sulfonated hydrocarbon membranes of polysulfone and polyether ketone were blended with nonsulfonated and hydrophobic polysulfone or polyether ketone. The sulfonated phase will act as the proton conducting phase and the nonsulfonated, hydrophobic phase acts as the methanol barrier. By forming the spinodal (co-continuous) morphology through controlling the phase separation kinetics during the casting of the membranes, the continuous hydrophobic phase will restrict the swelling of the neighboring hydrophilic phase (the proton conducting phase) and thus reducing the methanol cross-over through the free water in the hydrophilic conducting phase. Semi-IPN's of crosslinked sulfonated polysufone and nonsulfonated polysulfone membranes were also evaluated as the multiphase polymer membranes for direct methanol fuel cell.

Original languageEnglish
Title of host publicationAmerican Chemical Society - 237th National Meeting and Exposition, ACS 2009, Abstracts of Scientific Papers
Publication statusPublished - 2009 Dec 1
Externally publishedYes
Event237th National Meeting and Exposition of the American Chemical Society, ACS 2009 - Salt Lake City, UT, United States
Duration: 2009 Mar 222009 Mar 26

Publication series

NameACS National Meeting Book of Abstracts
ISSN (Print)0065-7727

Other

Other237th National Meeting and Exposition of the American Chemical Society, ACS 2009
CountryUnited States
CitySalt Lake City, UT
Period09/3/2209/3/26

Fingerprint

Direct methanol fuel cells (DMFC)
Polymers
Membranes
Polysulfones
Methanol
Polyethers
Ketones
Protons
Hydrocarbons
Phase separation
Electrolytes
Swelling
Casting
Kinetics
Water
polysulfone P 1700
Costs

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)

Cite this

Kim, S. C., Kim, D-H., Choi, J., Kwon, Y. H., & Lee, S. Y. (2009). Multiphase polymer membranes for direct methanol fuel cell. In American Chemical Society - 237th National Meeting and Exposition, ACS 2009, Abstracts of Scientific Papers (ACS National Meeting Book of Abstracts).

Multiphase polymer membranes for direct methanol fuel cell. / Kim, Sung Chul; Kim, Dong-Hwee; Choi, Jisu; Kwon, Yo Han; Lee, Sang Young.

American Chemical Society - 237th National Meeting and Exposition, ACS 2009, Abstracts of Scientific Papers. 2009. (ACS National Meeting Book of Abstracts).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Kim, SC, Kim, D-H, Choi, J, Kwon, YH & Lee, SY 2009, Multiphase polymer membranes for direct methanol fuel cell. in American Chemical Society - 237th National Meeting and Exposition, ACS 2009, Abstracts of Scientific Papers. ACS National Meeting Book of Abstracts, 237th National Meeting and Exposition of the American Chemical Society, ACS 2009, Salt Lake City, UT, United States, 09/3/22.
Kim SC, Kim D-H, Choi J, Kwon YH, Lee SY. Multiphase polymer membranes for direct methanol fuel cell. In American Chemical Society - 237th National Meeting and Exposition, ACS 2009, Abstracts of Scientific Papers. 2009. (ACS National Meeting Book of Abstracts).
Kim, Sung Chul ; Kim, Dong-Hwee ; Choi, Jisu ; Kwon, Yo Han ; Lee, Sang Young. / Multiphase polymer membranes for direct methanol fuel cell. American Chemical Society - 237th National Meeting and Exposition, ACS 2009, Abstracts of Scientific Papers. 2009. (ACS National Meeting Book of Abstracts).
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