Development of micro-tubular SOFC with an improved performance via nano-Ag impregnation for intermediate temperature operation

Yu Liu, Shin Ichi Hashimoto, Hanako Nishino, Masashi Mori, Yoshihiro Funahashi, Yoshinobu Fijishiro, Atsushi Hirano, Nobuyuki Imanishi, Yasuo Takeda

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

1 Citation (Scopus)

Abstract

Electrochemically catalytic Ag particles in nano-range were in situ incorporated into the 15 μm thick cathode consisting of La 0 6Sr0 4Co0 2Fe0 8O3 8 and Ce0 8Gd0 2O1 9 (GDC) via a citrate infiltration method. The Ag-impregnation route ensures very homogeneous particle dispersion and good adhesion of Ag to the ceramic matrices. The functional cathode was successfully operated on the Ni-cermet-supported (ZrO 2)0 89(Sc2O3)0 1(CeO 2)0 01 electrolyte with a GDC buffer layer under a micro-tubular configuration, producing maximum power density of 1.06 W cm -2 (1.43 A cm-2,0.74 V), 0.98 W cm-2 (1.78 A cm-2,0.55 V), and 0.49 Wcm-2 (1.44 A cm-2,0.34 V) at 650,600, and 550°C, respectively.

Original languageEnglish
Title of host publicationECS Transactions - 10th International Symposium on Solid Oxide Fuel Cells, SOFC-X
Pages615-622
Number of pages8
Edition1 PART 1
DOIs
Publication statusPublished - 2007 Dec 1
Event10th International Symposium on Solid Oxide Fuel Cells, SOFC-X - , Japan
Duration: 2007 Jun 32007 Jun 8

Publication series

NameECS Transactions
Number1 PART 1
Volume7
ISSN (Print)1938-5862
ISSN (Electronic)1938-6737

Other

Other10th International Symposium on Solid Oxide Fuel Cells, SOFC-X
CountryJapan
Period07/6/307/6/8

ASJC Scopus subject areas

  • Engineering(all)

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