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dc.contributor.authorTsai, Chih-Long
dc.contributor.authorSchmidt, V. Hugo
dc.date.accessioned2019-02-08T18:35:14Z
dc.date.available2019-02-08T18:35:14Z
dc.date.issued2011
dc.identifier.citationC.-L. Tsai and V.H. Schmidt, “Tortuosity in anode-supported proton conductive solid oxide fuel cell found from current flow rates and dusty-gas model,” Journal of Power Sources 196, 692-699 (2011), doi: 10.1016/j.jpowsour.2010.08.005en_US
dc.identifier.issn0378-7753
dc.identifier.urihttps://scholarworks.montana.edu/xmlui/handle/1/15224
dc.description.abstractBa(Ce0.8Y0.2)O3−δ anode-supported proton conductive solid oxide fuel cells were fabricated and tested. By changing the H2 partial pressure at the anode side, the effect of anodic concentration polarization on open-circuit voltage of the cell was observed. Saturation current densities under concentration polarization were obtained from different anode thickness cells and were used for tortuosity calculation. The calculation is based on the dusty-gas model which includes Knudsen diffusion and Stefan–Maxwell equation terms. The tortuosity value for our supporting anode is 1.55 ± 0.1 which is in a physically reasonable range for modern porous anode materials. The tortuosity that we found is independent of the cell testing temperature and anode thickness, which is consistent with the fact that tortuosity is a geometric factor of the anode structure. The derived equation also can be used for predicting the effect of varying the anode thickness, porosity and pore size. Also, the concentration of the gases as a function of position across the anode is determined.en_US
dc.description.sponsorshipUnited States Department of Energy subcontract Award No. DE-AC06-76RL01830en_US
dc.language.isoenen_US
dc.rightsThis Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s).en_US
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en_US
dc.titleTortuosity in anode-supported proton conductive solid oxide fuel cell found from current flow rates and dusty-gas modelen_US
dc.typeArticleen_US
mus.citation.extentfirstpage692en_US
mus.citation.extentlastpage699en_US
mus.citation.issue2en_US
mus.citation.journaltitleJournal of Power Sourcesen_US
mus.citation.volume196en_US
mus.identifier.categoryPhysics & Mathematicsen_US
mus.identifier.doi10.1016/j.jpowsour.2010.08.005en_US
mus.relation.collegeCollege of Letters & Scienceen_US
mus.relation.departmentPhysics.en_US
mus.relation.universityMontana State University - Bozemanen_US
mus.data.thumbpage4en_US


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