Modeling diffusion limitation in solid-oxide fuel cells

Janardhanan, V M and Deutschmann, O (2011) Modeling diffusion limitation in solid-oxide fuel cells. Electrochimica Acta, 56 (27). pp. 9775-9782. ISSN 0013-4686

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Abstract

Effect of surface diffusion on the performance of solid-oxide fuel cell is investigated. A methodical approach for the evaluation of surface diffusion coefficients of various adsorbed species based on bond-order conservation Morse potential (BOC-MP) method is presented. The surface diffusion fluxes are used for the evaluation of temporal changes in surface coverages. Our analysis shows that surface diffusion does not lead to the concentration losses in solid oxide fuel cells. Further analysis is carried out and results are presented to substantiate the significance of interface diffusion on the behavior of voltage at limiting current.

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IITH Creators:
IITH CreatorsORCiD
Janardhanan, V Mhttp://orcid.org/0000-0002-3458-4169
Item Type: Article
Uncontrolled Keywords: Concentration losses; Diffusion limitation; Mathematical modeling; Solid-oxide fuel cells; Surface diffusion; Tortuosity
Subjects: Chemical Engineering > Biochemical Engineering
Divisions: Department of Chemical Engineering
Depositing User: Team Library
Date Deposited: 29 Oct 2014 09:05
Last Modified: 05 Jul 2017 11:05
URI: http://raiith.iith.ac.in/id/eprint/522
Publisher URL: https://doi.org/10.1016/j.electacta.2011.08.038
OA policy: http://www.sherpa.ac.uk/romeo/issn/0013-4686/
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