Low temperature preparation of LaNi 1-xFe xO 3 as new cathode material for SOFC - Advantage of liquid phase mixing method

Eiki Niwa, Chie Uematsu, Erina Miyashita, Takeshi Ohzeki, Takuya Hashimoto

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

2 Citations (Scopus)

Abstract

Preparation of LaNi 1-xFe xO 3, which is one of the candidate materials for solid oxide fuel cell cathodes with high electrical conductivity and resistance against Cr poisoning, was studied with liquid phase mixing method and solid state reaction method. Single phase LaNi 1-xFe xO 3 was successfully prepared irrespective of composition by low temperature sintering at 750°C with liquid phase mixing method, whereas large amounts of raw materials remained in the solid state reaction method by sintering at the same temperature. It can be ascribed to more homogenous cation distribution in raw powder materials prior to sintering with liquid phase mixing method. It has also been revealed that LaNi 1-xFe xO 3with x lower than 0.3 is thermodynamically unstable in air above 1000°C. LaNi 0.6Fe 0.4O 3 showed superior property as cathode material with high electrical conductivity, thermodynamic stability and appropriate sintering property.

Original languageEnglish
Title of host publicationSolid Oxide Fuel Cells 12, SOFC XII
Pages1935-1943
Number of pages9
Edition3 PART 3
DOIs
Publication statusPublished - 2011
Externally publishedYes
Event12th International Symposium on Solid Oxide Fuel Cells, SOFC-XII - 219th ECS Meeting - Montreal, QC, Canada
Duration: May 1 2011May 6 2011

Publication series

NameECS Transactions
Number3 PART 3
Volume35
ISSN (Print)1938-5862
ISSN (Electronic)1938-6737

Other

Other12th International Symposium on Solid Oxide Fuel Cells, SOFC-XII - 219th ECS Meeting
CountryCanada
CityMontreal, QC
Period5/1/115/6/11

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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