Transfer processes in PEM fuel cell: Influence of electrode structure
| Autor: | Sergey A. Grigoriev, Vladimir N. Fateev, D. Ylitalo, I. I. Nikolaev, I. E. Baranov |
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| Rok vydání: | 2006 |
| Předmět: |
Hydrogen
Renewable Energy Sustainability and the Environment Energy Engineering and Power Technology Proton exchange membrane fuel cell chemistry.chemical_element Electrolyte Condensed Matter Physics Catalysis Fuel Technology chemistry Percolation theory Chemical engineering Electrode Gaseous diffusion Porosity Nuclear chemistry |
| Zdroj: | International Journal of Hydrogen Energy. 31:203-210 |
| ISSN: | 0360-3199 |
| Popis: | The model of reactants’ diffusion through porous gas diffusion and catalytic layers of the fuel cell with proton exchange membrane is developed. Transfer processes in these layers are considered with the use of percolation theory. In particular, it was shown that three systems of interconnected particles or volumes catalyst, electrolyte and pores, should be created in the catalyst layer. The process of flooding of the porous system by water produced during the fuel cell operation is examined. The developed model enables to predict the influence of structural parameters of the layer on fuel cell performance. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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