Numerical Analysis to the Catalyst Layer Model of PAFC Air Electrode

Abstract

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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WEI Zi-Dong, GUO He-Tong, TANG Zhi-Yuan. Numerical Analysis to the Catalyst Layer Model of PAFC Air Electrode[J]. Chem. J. Chinese Universities, 1996, 17(11): 1760.

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Numerical Analysis to the Catalyst Layer Model of PAFC Air Electrode

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