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 journalArticlepeer-review

    70 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

    Bibliographical note

    Funding Information:
    This work was supported by New and Renewable Energy R&D Program and National RD&D Organization for Hydrogen and Fuel Cell under the Korea Ministry of Commerce, Industry and Energy as a part of the development of 200 kW class PEMFC system for bus (2005-N-F12-P-01).

    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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