Double columnar interlayer for increased cathodic activity of intermediate temperature solid oxide fuel cells

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

Abstract

Effects of double columnar structure interlayer film, in which tensile strain were introduced, on cathodic activity of SmCoO3 was investigated. Double columnar film of Pr2NiO4(PNCG)-Sm doped CeO2 (SDC), PrBaCo2O5.5-SDC, Sm0.6Sr0.4CoO3(SSC)- SDC, and La0.6Sr0.4FeO3-SDC were successfully prepared by PLD method and it was found that insertion of PNCG-SDC or SSC-SDC double columnar film decreased the overpotential of SSC cathode. The power density of the cell deposited on Ni-Fe porous metal substrate was higher than 3W/cm2 at 773K and impedance results suggested that the increased power density was explained by decreased cathodic overpotential. Increased diffusivity of oxide ion in double columnar film is effective for expanding reaction area resulting in the increased cathodic performance for oxide ion dissociation.

Original languageEnglish
Title of host publicationSolid Oxide Fuel Cells 16, SOFC 2019
EditorsK. Eguchi, S. C. Singhal
PublisherElectrochemical Society Inc.
Pages1355-1362
Number of pages8
Edition1
ISBN (Electronic)9781607688747
DOIs
Publication statusPublished - Jan 1 2019
Event16th International Symposium on Solid Oxide Fuel Cells, SOFC 2019 - Kyoto, Japan
Duration: Sep 8 2019Sep 13 2019

Publication series

NameECS Transactions
Number1
Volume91
ISSN (Print)1938-6737
ISSN (Electronic)1938-5862

Conference

Conference16th International Symposium on Solid Oxide Fuel Cells, SOFC 2019
CountryJapan
CityKyoto
Period9/8/199/13/19

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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