Synthesis and characterization of Y2Ru2O7 and Y2-xPrxRu2O7 for cathode application in intermediate temperature solid oxide fuel cells

Chiara Abate*, Keith Duncan, Vincenzo Esposito, Enrico Traversa, Eric D. Wachsman

*Corresponding author for this work

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

5 Scopus citations

Abstract

Nanocrystalline powders of Y2Ru2O7 and Y2-xPrxRu2O7 were prepared by a co-precipitation method. Pr was chosen as the Asite dopant in order to increase the electrical conductivity of Y2Ru2O7. Phase and morphology were studied by XRD and FE-SEM, which showed both systems exhibit a particle size of about 100 nm, and the doped powders were single pyrochlore phase. The electrical conductivity of a dense bar of Y2-x Pr xRu2O7 was measured at several temperatures by d.c. 4-probe method, while the electrochemical properties of Y2-x PrxRu2O7 pyrochlores were tested in contact to ESB electrolytes, using Electrochemical Impedance Spectroscopy (EIS) in air. The Y2-xPrxRu2O7 on ESB electrolyte solid-state cells presents a significant decrease of electrodes impedance. copyright The Electrochemical Society.

Original languageEnglish (US)
Title of host publicationSolid State Ionic Devices IV
Pages255-261
Number of pages7
Volume1
Edition7
DOIs
StatePublished - 2005
Externally publishedYes
Event4th International Symposium on Solid-State Ionic Devices - 208th Meeting of the Electrochemical Society - Los Angeles, CA, United States
Duration: Oct 16 2005Oct 21 2005

Other

Other4th International Symposium on Solid-State Ionic Devices - 208th Meeting of the Electrochemical Society
CountryUnited States
CityLos Angeles, CA
Period10/16/0510/21/05

ASJC Scopus subject areas

  • Engineering(all)

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