Sulfonated poly(ether sulfone) for universal polymer electrolyte fuel cell operations

Hyoung Juhn Kim, Nambi N. Krishnan, Sang Yeop Lee, Sang Youp Hwang, Daejin Kim, Kyoung Jin Jeong, Jae Kwang Lee, Eun Ae Cho, Jaeyoung Lee, Jonghee Han, Heung Yong Ha, Tae Hoon Lim

Research output: Contribution to journalArticlepeer-review

39 Citations (Scopus)


The performances of the proton exchange membrane fuel cell (PEMFC), direct formic acid fuel cell (DFAFC) and direct methanol fuel cell (DMFC) with sulfonated poly(ether sulfone) membrane are reported. Pt/C was coated on the membrane directly to fabricate a MEA for PEMFC operation. A single cell test was carried out using H2/air as the fuel and oxidant. A current density of 730 mA cm-2 at 0.60 V was obtained at 70 °C. Pt-Ru (anode) and Pt (cathode) were coated on the membrane for DMFC operations. It produced 83 mW cm-2 maximum power density. The sulfonated poly(ether sulfone) membrane was also used for DFAFC operation under several different conditions. It showed good cell performances for several different kinds of polymer electrolyte fuel cell applications.

Original languageEnglish
Pages (from-to)353-358
Number of pages6
JournalJournal of Power Sources
Issue number1
Publication statusPublished - 2006 Sept 29


  • Direct formic acid fuel cell (DFAFC)
  • Direct methanol fuel cell (DMFC)
  • Membrane electrode assembly (MEA)
  • Proton exchange membrane fuel cell (PEMFC)
  • Sulfonated poly(ether sulfone)

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Energy Engineering and Power Technology
  • Physical and Theoretical Chemistry
  • Electrical and Electronic Engineering


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