skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Modifying zirconia solid electrolyte surface property to enhance oxide transport

Abstract

Bismuth-strontium-calcium-copper oxide (Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub 8}, BSCCO) is known for its high T{sub c} superconducting behavior and mixed conducting property. The applicability of similar high T{sub c} cuprates for intermediate-temperature solid oxide fuel cell (SOFC) application has been studied recently. We investigated the electrochemical behavior of several Ag{vert_bar}BSCCO{vert_bar}10 mol% yttria-stabilized zirconia (YSZ){vert_bar}Ag and Ag{vert_bar}YSZ{vert_bar}Ag cells using complex impedance spectroscopy. A highly uniform and porous microstructure was observed at the interface of the YSZ and BSCCO. The ionic conductivity determined from the Nyquest plots in the temperature range of 200-700{degrees}C agrees with the values reported in the literature. The specific resistance of the BSCCO{vert_bar}YSZ interface was also determined to be lower than those of the conventional manganite electrode, suggesting that BSCCO seems attractive for cathode applications in SOFC.

Authors:
;  [1]
  1. Univ. of Hawaii, Honolulu, HI (United States)
Publication Date:
Research Org.:
Fuel Cell Seminar Organizing Committee (United States)
OSTI Identifier:
460197
Report Number(s):
CONF-961107-Absts.
ON: TI97001494; TRN: 97:001723-0049
Resource Type:
Technical Report
Resource Relation:
Conference: Fuel cell seminar, Kissimmee, FL (United States), 17-20 Nov 1996; Other Information: PBD: [1996]; Related Information: Is Part Of Fuel cells seminar; PB: 794 p.
Country of Publication:
United States
Language:
English
Subject:
30 DIRECT ENERGY CONVERSION; 36 MATERIALS SCIENCE; BISMUTH OXIDES; MICROSTRUCTURE; ELECTRIC CONDUCTIVITY; STRONTIUM OXIDES; CALCIUM OXIDES; COPPER OXIDES; SOLID ELECTROLYTE FUEL CELLS; ELECTRODES

Citation Formats

Liaw, B. Y., and Song, S. Y. Modifying zirconia solid electrolyte surface property to enhance oxide transport. United States: N. p., 1996. Web. doi:10.2172/460197.
Liaw, B. Y., & Song, S. Y. Modifying zirconia solid electrolyte surface property to enhance oxide transport. United States. https://doi.org/10.2172/460197
Liaw, B. Y., and Song, S. Y. 1996. "Modifying zirconia solid electrolyte surface property to enhance oxide transport". United States. https://doi.org/10.2172/460197. https://www.osti.gov/servlets/purl/460197.
@article{osti_460197,
title = {Modifying zirconia solid electrolyte surface property to enhance oxide transport},
author = {Liaw, B. Y. and Song, S. Y.},
abstractNote = {Bismuth-strontium-calcium-copper oxide (Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub 8}, BSCCO) is known for its high T{sub c} superconducting behavior and mixed conducting property. The applicability of similar high T{sub c} cuprates for intermediate-temperature solid oxide fuel cell (SOFC) application has been studied recently. We investigated the electrochemical behavior of several Ag{vert_bar}BSCCO{vert_bar}10 mol% yttria-stabilized zirconia (YSZ){vert_bar}Ag and Ag{vert_bar}YSZ{vert_bar}Ag cells using complex impedance spectroscopy. A highly uniform and porous microstructure was observed at the interface of the YSZ and BSCCO. The ionic conductivity determined from the Nyquest plots in the temperature range of 200-700{degrees}C agrees with the values reported in the literature. The specific resistance of the BSCCO{vert_bar}YSZ interface was also determined to be lower than those of the conventional manganite electrode, suggesting that BSCCO seems attractive for cathode applications in SOFC.},
doi = {10.2172/460197},
url = {https://www.osti.gov/biblio/460197}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Dec 31 00:00:00 EST 1996},
month = {Tue Dec 31 00:00:00 EST 1996}
}