Novel design of microchanneled tubular solid oxide fuel cells and synthesis using a multipass extrusion process

Byong Taek Lee, A. H.M. Esfakur Rahman, Jong Hee Kim

Research output: Contribution to journalArticlepeer-review

11 Scopus citations

Abstract

A novel, microchanneled tubular solid oxide fuel cell was fabricated using a multipass extrusion process, with an outside diameter of 2.7 mm that contained 61 cells. Cell materials used in this work were 8 mol% yttria-stabilized zirconia (8YSZ), La0.8Sr0.2MnO3 (LSM), and NiO-8YSZ (50:50 vol%) as electrolyte, cathode, and anode, respectively. Three stages of heat-treatment processes were applied, at 700°C in N2 condition, at 1000°C in air, and then sintered at 1300°C for 2 h, respectively. The X-ray diffraction analysis confirmed that no reaction phases appeared after sintering. The microstructures of anode and cathode were fairly porous while the electrolyte had a dense microstructure (relative density >96%). The thickness of electrolyte, anode, and cathode were 20, 30, and 40 μm, respectively, and the diameter of the continuous channels was 150 μm.

Original languageEnglish (US)
Pages (from-to)1921-1925
Number of pages5
JournalJournal of the American Ceramic Society
Volume90
Issue number6
DOIs
StatePublished - Jun 1 2007

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Materials Chemistry

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