Steam electrolysis using a micro tubular ceramic reactor

Shinichi Hashimoto, Y. Liu, H. Kawamura, M. Mori, Y. Funahashi, Y. Fujishiro

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Steam electrolysis was carried out using a micro tubular ceramic reactor which has the cell configurations as follows; La 0.6Sr 0.4Co 0.2Fe 0.8O 3-d (LSCF) - Ce 0.8Gd 0.2O 1.9 (CGO) electrode / CGO buffer layer / (ZrO 2) 0.89(Sc 2O 3) 0.1 (CeO 2) 0.01 (ScSZ) electrolyte / Ni-ScSZ electrode supporting tube. 10%H 2-Ar mixture gas was used as steam carrier gas, and 18% steam was supplied to inside of the ceramic reactors. The cell voltage 1.43V at 0.1Acm -2 was observed at 650 °C. During the steam electrolysis, hydrogen production has proportionally increased with current density increasing, and heat generation from low current density was observed by electro-chemical technique. Voids and incursion of Zr were confirmed in CGO buffer layer. Such factors nearby surface probably caused increase in the ohmic resistance and electrode over potential.

Original languageEnglish
Title of host publication17th World Hydrogen Energy Conference 2008, WHEC 2008
Pages908-911
Number of pages4
Publication statusPublished - 2008 Dec 1
Event17th World Hydrogen Energy Conference 2008, WHEC 2008 - Brisbane, QLD, Australia
Duration: 2008 Jun 152008 Jun 19

Publication series

Name17th World Hydrogen Energy Conference 2008, WHEC 2008
Volume2

Other

Other17th World Hydrogen Energy Conference 2008, WHEC 2008
CountryAustralia
CityBrisbane, QLD
Period08/6/1508/6/19

ASJC Scopus subject areas

  • Forestry
  • Plant Science

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    Hashimoto, S., Liu, Y., Kawamura, H., Mori, M., Funahashi, Y., & Fujishiro, Y. (2008). Steam electrolysis using a micro tubular ceramic reactor. In 17th World Hydrogen Energy Conference 2008, WHEC 2008 (pp. 908-911). (17th World Hydrogen Energy Conference 2008, WHEC 2008; Vol. 2).