Comparison of combustion and solid-state reaction methods for the fabrication of SOFC LSM cathodes

Seon Ho Yang, Kyung Hwan Kim, Hyon Hee Yoon, Woo Jae Kim, Hyung Wook Choi

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4 Scopus citations


This study investigates the crystal phase and microstructure of LSM (La1-xSrxMnO3) cathode material synthesized by solid state reaction method and combustion synthesis. It measures and compares their electrical properties. LSM is a lanthanum ferrite-based cathode material. It has an ABO3 perovskite structure; the A in this structure was substituted by Sr in this research to synthesize the LSM cathode powder. An electrolyte pellet was prepared using 8mol% YSZ (yttria-stabilized zirconia) powder. The electrode was vapor deposited by screen printing. The crystal structure and morphology were measured by scanning electron microscopy (SEM) and X-ray diffraction (XRD) for the sintered samples collected. The complex impedance was measured in the temperature range 600-900°C in air (Computer Impedance Grain-Phase Analyzer). The electrical conductivity and polarization resistance of LSM were characterized systematically.

Original languageEnglish
Pages (from-to)50/[390]-57/[397]
JournalMolecular Crystals and Liquid Crystals
StatePublished - 2011

Bibliographical note

Funding Information:
This work was supported by the Human Resources Development of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) grant funded by the Korea government Ministry of Knowledge Economy (No. 20104010100510).


  • Cathode
  • LSM
  • SOFCs


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