Nafion Ionomer Content in Catalyst Layer for PEMFC Nafion Ionomer Content in Catalyst Layer for PEMFC

고분자 전해질 막 연료전지의 촉매층 내의 나피온 아이오노머양에 따른 단위 셀의 전기화학적 특성 연구

  • Ahn, Kyung-Yong (Dept. of Chemical Engineering, Grad. School of Changwon National Univ.) ;
  • Yang, Cheol-Nam (Material Processing Division, Korea Institute of Materials Science) ;
  • Lee, Soo (Dept. of Chemical Engineering, Grad. School of Changwon National Univ.)
  • 안경용 (창원대학교 화공시스템공학과) ;
  • 양철남 (재료연구소) ;
  • 이수 (창원대학교 화공시스템공학과)
  • Received : 2010.10.27
  • Accepted : 2010.12.17
  • Published : 2010.12.31

Abstract

In order to confirm the effect of Nafion ionomer content in catalyst layer on the performance of PEMFC, we have fabricated several electrodes which were prepared by varying the quantity of Nafion ionomer from 24 wt.% to 39 wt.% in catalyst layer. The effect of Nafion ionomer of each electrode was evaluated with cyclic voltammetry measurement. In addition, cell performance was obtained through single cell test using hydrogen and air. The Pt utilization and performance of single cell were changed by addition of Nafion ionomer to the electrode. Single cell fabricated with 33 wt.% of Nafion ionomer in catalyst layer showed the maximum Pt utilization and performance.

Keywords

Nafion ionomer;PEMFC;Cell performance;Cyclic voltammetry;Electrochemically active specific area

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