An Effective Property Model for Infiltrated Electrodes in Solid Oxide Fuel Cells

Hardjo, E F and Monder, D S and Karan, K (2014) An Effective Property Model for Infiltrated Electrodes in Solid Oxide Fuel Cells. Journal of The Electrochemical Society, 161 (1). F83-F93. ISSN 0013-4651

Full text not available from this repository. (Request a copy)


An effective property model for infiltrated electrodes is reported that predicts the dependence of effective electronic conductivity and active TPB length on experimentally controllable and measurable parameters. The model uses results from percolation theory and geometric arguments to compute the properties of Ni-infiltrated anodes of solid oxide fuel cells. While the predicted electronic conductivity is comparable to that for a typical composite Ni anode, the predicted effective TPB length is approximately two orders of magnitude higher for a Ni infiltrated anode with a Ni volume fraction of less than 10%. The predictions of the developed model are compared and validated against three independent experimental datasets. Parametric studies using this model suggest that decreasing the particle sizes of the infiltrated film and the substrate, as well as the substrate porosity will increase the active TPB length. While decreasing substrate particle size also increases the effective electronic conductivity of the electrode, decreasing substrate porosity has the opposite effect. Finally, a methodology is presented to quantitatively relate an experimentally observed degradation in effective electronic conductivity of infiltrated electrodes to a reduction in active TPB length as a function of time.

[error in script]
IITH Creators:
IITH CreatorsORCiD
Item Type: Article
Additional Information: This was in part Paper 821 presented at the Montreal, QC, Canada, Meeting of the Society, May 1–6, 2011.
Subjects: Chemical Engineering > Biochemical Engineering
Divisions: Department of Chemical Engineering
Depositing User: Team Library
Date Deposited: 08 Sep 2015 08:51
Last Modified: 08 Sep 2015 08:51
Publisher URL:
OA policy:
Related URLs:

Actions (login required)

View Item View Item
Statistics for RAIITH ePrint 1917 Statistics for this ePrint Item