A study of nickel-substituted lanthanum cobaltite as cathode materials for SOFCs

Y. Uzumaki, S. Hashimoto, K. Amezawa, T. Kawada

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

2 Citations (Scopus)

Abstract

LaNixCo1-xO3-δ (x = 0.2, 0.4, 0.6, 0.8) was prepared by Pechini method and electrochemical properties as cathode were evaluated under controlled temperature and p(O2) by AC impedance measurement. Electrode performance was increased with increasing nickel contents concerning area specific interfacial conductivity and capacitance. σE of LaNi0.6Co0.4O3-δ (LNC64) was higher than that of LaNi0.6Fe0.4O 3-δ (LNF64). For the result of area specific interfacial capacitance, it was suggested that the variation of oxygen vacancies with p(O2) of LaNixCo1-xO3-δ series was smaller than that of La0.6Sr0.4Co 0.2Fe0.8O3-δ (LSCF6428).

Original languageEnglish
Title of host publicationECS Transactions
PublisherElectrochemical Society Inc.
Pages29-35
Number of pages7
Edition44
ISBN (Electronic)9781607685395
DOIs
Publication statusPublished - 2013

Publication series

NameECS Transactions
Number44
Volume50
ISSN (Print)1938-5862
ISSN (Electronic)1938-6737

ASJC Scopus subject areas

  • Engineering(all)

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