Effect of PFSA Polymer Content in Catalyst Layer on PEFC Performance under Several Humidity Conditions

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Author(s)

Abstract

The effects on cell performance of Nafion<sup>®</sup> content in 1 mg/cm<sup>2</sup> Pt with a Pt and carbon mixture containing 50 wt.% Pt (50 wt.%Pt/C-1 mgPt/cm<sup>2</sup>) catalyst layers were studied under several humidified operating conditions at 80°C and 1 atm. The optimum Nafion<sup>®</sup> content for these conditions was 28-32 wt.% (0.76-0.95 mg/cm<sup>2</sup>). The value obtained using the 50 wt.%Pt/C catalyst was compared with reported values obtained using 20 wt.%Pt/C or 20 wt.%PtCr/C catalyst. The catalyst layer’s activation polarization with insufficient Nafion<sup>®</sup> decreases concomitantly with increased humidity, but that of a layer with excessive Nafion<sup>®</sup> increases with increased humidity.

Journal

  • Journal of The Surface Finishing Society of Japan

    Journal of The Surface Finishing Society of Japan 60(10), 672-675, 2009-10-01

    The Surface Finishing Society of Japan

References:  7

Codes

  • NII Article ID (NAID)
    10025396201
  • NII NACSIS-CAT ID (NCID)
    AN1005202X
  • Text Lang
    ENG
  • Article Type
    ART
  • ISSN
    09151869
  • NDL Article ID
    10454008
  • NDL Source Classification
    ZP41(科学技術--金属工学・鉱山工学)
  • NDL Call No.
    Z17-291
  • Data Source
    CJP  NDL  J-STAGE 
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