高等学校化学学报

高等学校化学学报 ›› 1996, Vol. 17 ›› Issue (11): 1760.

• 论文 • 上一篇    下一篇

磷酸型燃料电池空气电极催化反应层数学模型与数值分析

魏子栋1, 郭鹤桐2, 唐致远2   

  1. 1. 山东工业大学化学工程系, 济南, 250061;
    2. 天津大学应用化学系, 天津, 300072
  • 收稿日期:1995-11-27 出版日期:1996-11-24 发布日期:1996-11-24
  • 通讯作者: 魏子栋,男,32岁,博士,副教授.
  • 作者简介:魏子栋,男,32岁,博士,副教授.
  • 基金资助:

    国家教育委员会博士点基金

Numerical Analysis to the Catalyst Layer Model of PAFC Air Electrode

WEI Zi-Dong1, GUO He-Tong2, TANG Zhi-Yuan2   

  1. 1. Department of Chemical Engneering, Shandong University of Technology, Jinan, 250061;
    2. Department of Applied Chemistry, Tianjin University, Tianjin, 300072
  • Received:1995-11-27 Online:1996-11-24 Published:1996-11-24

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被引次数

3

摘要： 从描述多组分气体在多孔介质中传质的Stenfan-Maxwell方程出发,结合磷酸型燃料电池(PAFC)空气电极过程的自身特点及PAFC中O2还原过程的最新成果,建立了描述PAFC空气电极催化反应层中组分传质、反应速度和电位分布的数学模型,并对模型中引入的主要参数提出了估算的方法。氧还原过程的电位-电流曲线与实际测量曲线吻合。

关键词: 燃料电池, 空气电极, 数学模型, 氧还原

Abstract: A mathematic model is proposed to characterize the performance of air electrodes in phosphoric acid fuel cells(PAFC).Stefan-Maxwell equation is used to describe the mass transfer of multicomponents in hydrophobic pores of the catalyst layer.The latest development in O2 reduction research is taken into account of the model establishment.A method to estimate the parameters introduced to the model is also recommended.Aprogram of solving mathematic model is programmed with FORTRAN 77.The potential current functions obtained from calculation with the present model are very close to those from experiments.Some quantitative conclusions on air electrodes were drawn through the analysis of air electrode process with the aid of the present model.

Key words: Fuel cells, Air electrode, Mathematic model, Oxygen reduction

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