Effect of Nafion® gradient in dual catalyst layer on proton exchange membrane fuel cell performance

K. H. Kim, H. J. Kim, K. Y. Lee, J. H. Jang, S. Y. Lee, E. Cho, I. H. Oh, T. H. Lim

Research output: Contribution to journalArticle

36 Citations (Scopus)

Abstract

The role of Nafion® binder in the electrodes was evaluated by changing its content for the membrane electrode assembly (MEA) fabrication. In the study, we prepared MEAs that have two different compositions of catalyst layers in electrodes. One layer which is close to the electrolyte membrane has the higher Nafion® content. The other which is near the gas diffusion media (GDM) has the lower one. Also, we changed the thickness of two layers to find the ideal composition of the binder and Pt/C in the electrode. The dual catalyst layer coated MEA showed higher cell performance at high current density region than the pristine MEA.

Original languageEnglish
Pages (from-to)2783-2789
Number of pages7
JournalInternational Journal of Hydrogen Energy
Volume33
Issue number11
DOIs
Publication statusPublished - 2008 Jun

Keywords

  • Dual catalyst layer
  • Electrode
  • Membrane electrode assembly (MEA)
  • Nafion gradient
  • Proton exchange membrane fuel cell (PEMFC)

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Fuel Technology
  • Condensed Matter Physics
  • Energy Engineering and Power Technology

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