Validation of the simple infiltrated microstructure polarization loss estimation (SIMPLE) model using single layer, nano-composite Sm 0.5Sr0.5CoO3-x-Ce0.9Gd 0.1O1.95 solid oxide fuel cell cathodes

Jason D. Nicholas, Scott A. Barnett

Research output: Chapter in Book/Report/Conference proceedingConference contribution

  • 1 Citations

Abstract

Single-layer nano-composite Sm0.5Sr0.5CoO 3-x (SSC) - Ce0.9Gd0.1O1.95 (GDC) Solid Oxide Fuel Cell (SOFC) cathodes with various SSC loading levels were prepared through multiple nitrate solution infiltrations. Microstructural analyses indicated that the average infiltrate hemispherical particle radius remained roughly constant, at 25nm, across multiple infiltrate-gel-800°C fire sequences. Symmetric cell polarization resistance measurements of cathode performance showed that the Simple Infiltrated Microstructure Polarization Loss Estimation (SIMPLE) model, which accounts for electrical losses associated with surface oxygen incorporation and bulk oxygen transport, was able to predict the performance of heavily infiltrated cathodes to within 55% (without the use of fitting parameters) at all temperatures from 400-700°C. Results also indicate that electronic conduction losses limited the overall cathode performance at low and medium SSC infiltrate loading levels.

LanguageEnglish (US)
Title of host publicationECS Transactions
Pages39-58
Number of pages20
Volume28
Edition11
DOIs
StatePublished - 2010
EventIonic and Mixed Conducting Ceramics 7 - 217th ECS Meeting - Vancouver, BC, Canada
Duration: Apr 25 2010Apr 30 2010

Other

OtherIonic and Mixed Conducting Ceramics 7 - 217th ECS Meeting
CountryCanada
CityVancouver, BC
Period4/25/104/30/10

Profile

Solid oxide fuel cells (SOFC)
Cathodes
Polarization
Microstructure
Composite materials
Oxygen
Infiltration
Nitrates
Fires
Gels
Temperature

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Validation of the simple infiltrated microstructure polarization loss estimation (SIMPLE) model using single layer, nano-composite Sm 0.5Sr0.5CoO3-x-Ce0.9Gd 0.1O1.95 solid oxide fuel cell cathodes. / Nicholas, Jason D.; Barnett, Scott A.

ECS Transactions. Vol. 28 11. ed. 2010. p. 39-58.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Nicholas, JD & Barnett, SA 2010, Validation of the simple infiltrated microstructure polarization loss estimation (SIMPLE) model using single layer, nano-composite Sm 0.5Sr0.5CoO3-x-Ce0.9Gd 0.1O1.95 solid oxide fuel cell cathodes. in ECS Transactions. 11 edn, vol. 28, pp. 39-58, Ionic and Mixed Conducting Ceramics 7 - 217th ECS Meeting, Vancouver, BC, Canada, 4/25/10. DOI: 10.1149/1.3495831
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