Stability of Nickel/Scandia-Doped-Stabilized-Zirconia Composite Anode under High Fuel Utilization Conditions

S. Taniguchi, K. Miyara, Tsutomu Kawabata, Chie Uryuu, Y. Inoue, J. T. Chou, K. Sasaki

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

Abstract

Stability of nickel/scandia-doped-stabilized-zirconia (Ni/ScSZ) composite anode under high pH2O condition was investigated. Electrolyte supported cell with ScSZ electrolyte and Ni/ScSZ anode was operated at 700oC for 500 h by feeding mixture of H2/H2O/N2as a fuel. Under 10%H2-40%H2O-50%N2, Sc diffused out of the ScSZ grain and dissolved into the adjacent Ni phase. Condensation of Sc in the Ni grain was enhanced by the application of current density of 0.5 A/cm2

Original languageEnglish
Title of host publication17th International Symposium on Solid Oxide Fuel Cells, SOFC 2021
PublisherIOP Publishing Ltd.
Pages1879-1883
Number of pages5
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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