A Mathematic Model of Gas-diffusion Electrodes in Contact with Liquid Electrolytes |
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| Authors: | LI Jun XI Dan-li SHI Yong WU Xi-hui |
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| Affiliation: | 1. Department of Chemical Engineering,Shanghai Institute of Technology,Shanghai 200235,China
2. Institute of Environment Science and Engineering,Donghua University,Shanghai 201620,China |
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| Abstract: | A mathematic model is developed which is applied to analyze the main factors that affect electrode performance and to account for the process of reaction and mass transfer in gas-diffusion electrodes in contact with liquid electrolytes. Electrochemical Thiele modulus φ2 and electrochemical effectiveness factor ηD are introduced to elucidate the effects of diffusion on electrochemical reaction and utilization of the gas-diffusion electrode.Profile of the reactant along axial direction is discussed,dependence of electrode potential V on current density J.are predicated by means of the newly developed mathematical model. |
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| Keywords: | fuel cell fuel cell membrane reactor liquid electrolyte gas-diffusion electrode mathematical model |
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