Effect of annealing temperature on the structural and electrical properties of mesoporous La 0.7 Sr 0.3 MnO 3

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 La 0.7 Sr 0.3 MnO 3 (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

Fingerprint

Structural properties
Electric properties
electrical properties
Annealing
annealing
Temperature
temperature
Electrodes
electrical resistivity
solid oxide fuel cells
electrode materials
Pore structure
Solid oxide fuel cells (SOFC)
Temperature measurement
Self assembly
temperature measurement
self assembly
acetates
Acetates
templates

All Science Journal Classification (ASJC) codes

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

Cite this

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abstract = "The structural and electrical properties of mesoporous La 0.7 Sr 0.3 MnO 3 (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.",
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Effect of annealing temperature on the structural and electrical properties of mesoporous La 0.7 Sr 0.3 MnO 3 . / Park, Chang Sun; Hong, Min Hee; Park, Hyung Ho.

In: Journal of the Ceramic Society of Japan, Vol. 122, No. 1428, 01.08.2014, p. 608-612.

Research output: Contribution to journalArticle

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