Electrochemical impedance spectroscopy of Ba2In2O5: effect of porosity, grain size, dopant, atmosphere and temperature

Download
  1. (PDF, 575 KB)
  2. Get@NRC: Electrochemical impedance spectroscopy of Ba2In2O5: effect of porosity, grain size, dopant, atmosphere and temperature (Opens in a new window)
DOIResolve DOI: http://doi.org/10.1149/2.022202jes
AuthorSearch for: ; Search for: ; Search for:
TypeArticle
Journal titleJournal of the Electrochemical Society
Volume159
Issue2
PagesB109B120
SubjectElectrochemical impedance spectroscopy; electrical properties; glycine-nitrate method
AbstractElectrochemical impedance spectroscopy was used to investigate the electrical properties of Ba2In2O5 and the effect of porosity, dopant (Ce), atmosphere, temperature, and grain size on these properties. The effect of dopant was investigated by comparing the results of undoped Ba2In2O5 samples to Ce-doped Ba2In2O5 samples. Effect of grain size for both compositions was studied by comparing the samples made by the glycine-nitrate method, which resulted in smaller grain sizes, and the samples made by the solid-state process, which resulted in larger grain sizes. Porosity effects were determined by testing the samples with different porosities between 20 percent and 50 percent. All samples were tested in two different atmospheres, air and 50 percent H2/50 percent N2, and at different temperatures in the range from 100◦C to 500◦C. The study contributed to better understanding of the conducting mechanisms of Ba2In2O5 in air and hydrogen-containing atmospheres.
Publication date
LanguageEnglish
AffiliationNRC Institute for Fuel Cell Innovation; National Research Council Canada
Peer reviewedYes
NPARC number19518268
Export citationExport as RIS
Report a correctionReport a correction
Record identifier8b74fb53-9535-417c-9fd5-68e49856b890
Record created2012-02-21
Record modified2016-05-09
Bookmark and share
  • Share this page with Facebook (Opens in a new window)
  • Share this page with Twitter (Opens in a new window)
  • Share this page with Google+ (Opens in a new window)
  • Share this page with Delicious (Opens in a new window)