Fabrication and fuel cell properties of Gd-doped CeO2 micro-tube ceramics reactors prepared by gel precursor

Yoshinobu Fujishiro, Kouich Hamamoto, Ramalinga V. Mangalaraja, Masanobu Awano

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

Micro-tube type Gd-doped CeO2(CGO) reactor were prepared by hydrolysis of metal acetate gel at room temperature. The size of anode tube was ca. 0.8mm in diameter, and length was 20mm after sintering at 1400°C. DC conductivity of the prepared dense CGO cell consisting of 500nm grains was about 10 Ohm-cm at 600°C. Electrical power density of the micro-tube fuel cell, which was coated both CGO electrolyte and CGO/La0.6Sr 0.4Co0.2Fe0.8O3 cathode on the surface of 40vol%NiO-CGO anode tube, was about 900mW/cm2 at 600°C under 30ml/min H2 gas flowing.

Original languageEnglish
Pages (from-to)909-912
Number of pages4
JournalKey Engineering Materials
Volume317-318
StatePublished - 2006
Externally publishedYes

Keywords

  • CGO
  • Low temperature SOFC
  • Sol-gel processing
  • Tube-type reactor

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