Redox Stability of Tubular Solid Oxide Cell Using LaGaO3Electrolyte Film Prepared by Dip-Coating

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

Abstract

Reversible operation of SOFCs is an important subject in renewable energy and is urgently needed at present. A NiO-YSZ tubular cell using a La0.9Sr0.1Ga0.8Mg0.2O3-δelectrolyte was prepared by dip-coating and its reversible operation was studied. Effects of Ce infiltration into the Ni-YSZ substrate was also studied and it was found that Ce infiltration is highly effective for increasing cell performance and stability in fuel cell and electrolysis modes. Cyclic operation of the LSGM tubular cell in SOEC and SOFC modes using a Ce infiltrated Ni-YSZ substrate was measured at 600 under 17%steam-25%H2in Ar. During 100 redox cycles at 0.1 A cm-2, the OCV remained almost unchanged from the initial value. The SOFC operating potential decreased slightly with increasing cycles, however, the degradation rate was significantly decreased by Ce infiltration.

Original languageEnglish
Title of host publication17th International Symposium on Solid Oxide Fuel Cells, SOFC 2021
PublisherIOP Publishing Ltd.
Pages1685-1693
Number of pages9
Edition1
ISBN (Electronic)9781607685395
DOIs
Publication statusPublished - 2021
Event17th International Symposium on Solid Oxide Fuel Cells, SOFC 2021 - Stockholm, Sweden
Duration: Jul 18 2021Jul 23 2021

Publication series

NameECS Transactions
Number1
Volume103
ISSN (Print)1938-6737
ISSN (Electronic)1938-5862

Conference

Conference17th International Symposium on Solid Oxide Fuel Cells, SOFC 2021
Country/TerritorySweden
CityStockholm
Period7/18/217/23/21

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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