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 Scopus 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.

Original languageEnglish (US)
Title of host publicationIonic and Mixed Conducting Ceramics 7
Pages39-58
Number of pages20
Edition11
DOIs
StatePublished - Dec 1 2010
EventIonic and Mixed Conducting Ceramics 7 - 217th ECS Meeting - Vancouver, BC, Canada
Duration: Apr 25 2010Apr 30 2010

Publication series

NameECS Transactions
Number11
Volume28
ISSN (Print)1938-5862
ISSN (Electronic)1938-6737

Other

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

ASJC Scopus subject areas

  • Engineering(all)

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