Effect of annealing temperature on the structural and electrical properties of mesoporous La0.7Sr0.3MnO3

Chang Sun Park, Min Hee Hong, Hyung Ho Park

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

The structural and electrical properties of mesoporous La0.7Sr0.3MnO3(LSMO) films for electrode applications were investigated as a function of annealing temperature. Mesoporous LSMO films were successfully synthesized by using solgel and evaporationinduced self-assembly processes. Metal acetates and Brij-S10 were used as the starting material and pore structure-forming template, respectively.With the adoption of mesoporous structure in the LSMO film, the surface area of mesoporous LSMO films was increased up to 165% with an annealing temperature increase from 350 to 650°C. The electrical conductivity value of mesoporous LSMO was determined to be 46 S/cm at a measurement temperature of 500°C. This greatly increased the surface area and provided reasonable electrical conductivity, which makes mesoporous LSMO films suitable as electrode materials of micro-solid oxide fuel cell devices.

Original languageEnglish
Pages (from-to)608-612
Number of pages5
JournalJournal of the Ceramic Society of Japan
Volume122
Issue number1428
DOIs
Publication statusPublished - 2014 Aug 1

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Chemistry

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