Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Schweizer, Ben | - |
dc.contributor.author | Mihailovici, Michaela | - |
dc.date.accessioned | 2008-06-02T14:01:00Z | - |
dc.date.available | 2008-06-02T14:01:00Z | - |
dc.date.issued | 2008-03-25 | - |
dc.identifier.citation | Mihailovici, Michaela; Schweizer, Ben: : Effective model for the cathode catalyst layer in fuels cells. In: Asymptotic Analysis Nr. 1-2, Jg. 57(2008), S. 105-123, preprint | de |
dc.identifier.uri | http://hdl.handle.net/2003/25410 | - |
dc.identifier.uri | http://dx.doi.org/10.17877/DE290R-156 | - |
dc.description.abstract | We study a pore scale model for the catalyst layer on the cathod e side of a fuel cell, where hydrogen and oxygen combine at catalyst sites. Our model distinguishes microscopically the phases of rigid structure, electrolyte, pore-space, and catalyst. The oxygen concentration and the protonic potential are described by diffu sion equations with reaction terms on the catalyst's surface. For the limit of a vanishing pore size we derive homogenized equations of reaction-diffusion type and provide formulae for the effective coeffici ents. A dimensional reduction shows that a thin catalyst layer can be replaced by a boundary condition. We furthermore analyze the effect of a doubling of the Tafel slope for high protonic potentials and determine effective constants. | en |
dc.language.iso | en | de |
dc.publisher | IOS Press | de |
dc.rights | © 2008 – IOS Press and the authors. All rightsreserved | - |
dc.subject | homogenization | en |
dc.subject | surface reaction | en |
dc.subject | effective equation | en |
dc.subject | fuel cell | en |
dc.subject.ddc | 510 | - |
dc.title | Effective model for the cathode catalyst layer in fuels cells | en |
dc.type | Text | de |
dc.type.publicationtype | preprint | de |
dc.identifier.url | http://dx.doi.org/10.3233/ASY-2008-0876 | - |
dcterms.accessRights | open access | - |
Appears in Collections: | Schweizer, Ben Prof. Dr. |
Files in This Item:
File | Description | Size | Format | |
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EffectiveModelForTheCathodeCatalystLayer.pdf | 289.59 kB | Adobe PDF | View/Open |
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