Improving the performance of high temperature protonic conductor (HTPC) electrolytes for solid oxide fuel cell (SOFC) applications

Emiliana Fabbri*, Daniele Pergolesi, Alessandra D'Epifanio, Elisabetta Di Bartolomeo, Giuseppe Balestrino, Silvia Licoccia, Enrico Traversa

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

3 Scopus citations

Abstract

This work investigated the possibility of coupling the high conductivity of cerates and the good chemical stability of zirconates as proton conductor electrolytes for solid oxide fuel cells (SOFCs). Two different approaches are discussed: the synthesis of barium cerate and zirconate solid solutions, and the fabrication of a bilayer electrolyte made of a Y-doped barium cerate pellet covered by a thin protecting layer of Y-doped barium zirconate. The chemical stability of the tailored samples was tested exposing them to 100% CO 2 atmosphere at 700° C for 3 h. X-ray diffraction (XRD) analysis was used to investigate the phase composition of the specimens before and after the CO2 treatment. Electrochemical impedance spectroscopy (EIS) measurements were carried out in humidified H2. Hydrogen-air breathing fuel cell experiments were carried out at 700°C.

Original languageEnglish (US)
Title of host publicationAsian Ceramic Science for Electronics III and Electroceramics in Japan XII
Pages336-339
Number of pages4
Volume421-422
DOIs
StatePublished - 2010
Externally publishedYes
Event6th Asian Meeting on Electroceramics, AMEC-6, in conjunction with the Electronics Division Meeting of the Ceramic Society of Japan - Tsukuba, Japan
Duration: Oct 22 2008Oct 24 2008

Publication series

NameKey Engineering Materials
Volume421-422
ISSN (Print)1013-9826

Other

Other6th Asian Meeting on Electroceramics, AMEC-6, in conjunction with the Electronics Division Meeting of the Ceramic Society of Japan
CountryJapan
CityTsukuba
Period10/22/0810/24/08

Keywords

  • Chemical stability
  • IT-SOFCs
  • Proton conductors

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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