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

Research output: Contribution to journalConference articleResearchpeer-review

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- xPrxRu2O7 was measured at several temperatures by d.c. 4- probe method, while the electrochemical properties of Y2- xPrxRu2O7 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.
Original languageEnglish
JournalE C S Transactions
Volume1
Issue number7
Pages (from-to)255-261
ISSN1938-5862
DOIs
Publication statusPublished - 2006
Externally publishedYes
Event208th ECS Meeting - Los Angeles, California, United States
Duration: 16 Oct 200521 Oct 2005

Conference

Conference208th ECS Meeting
CountryUnited States
CityLos Angeles, California
Period16/10/200521/10/2005

Cite this

@inproceedings{078be714212a416ab17bb669f1c92d30,
title = "Synthesis and characterization of Y2Ru2O7 and Y2-xPrxRu2O7 for cathode application in intermediate temperature solid oxide fuel cells",
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- xPrxRu2O7 was measured at several temperatures by d.c. 4- probe method, while the electrochemical properties of Y2- xPrxRu2O7 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.",
author = "Chiara Abate and Keith Duncan and Vincenzo Esposito and Enrico Traversa and Wachsman, {Eric D.}",
year = "2006",
doi = "10.1149/1.2215560",
language = "English",
volume = "1",
pages = "255--261",
journal = "E C S Transactions",
issn = "1938-5862",
publisher = "The Electrochemical Society",
number = "7",

}

Synthesis and characterization of Y2Ru2O7 and Y2-xPrxRu2O7 for cathode application in intermediate temperature solid oxide fuel cells. / Abate, Chiara; Duncan, Keith; Esposito, Vincenzo; Traversa, Enrico; Wachsman, Eric D.

In: E C S Transactions, Vol. 1, No. 7, 2006, p. 255-261.

Research output: Contribution to journalConference articleResearchpeer-review

TY - GEN

T1 - Synthesis and characterization of Y2Ru2O7 and Y2-xPrxRu2O7 for cathode application in intermediate temperature solid oxide fuel cells

AU - Abate, Chiara

AU - Duncan, Keith

AU - Esposito, Vincenzo

AU - Traversa, Enrico

AU - Wachsman, Eric D.

PY - 2006

Y1 - 2006

N2 - 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- xPrxRu2O7 was measured at several temperatures by d.c. 4- probe method, while the electrochemical properties of Y2- xPrxRu2O7 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.

AB - 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- xPrxRu2O7 was measured at several temperatures by d.c. 4- probe method, while the electrochemical properties of Y2- xPrxRu2O7 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.

U2 - 10.1149/1.2215560

DO - 10.1149/1.2215560

M3 - Conference article

VL - 1

SP - 255

EP - 261

JO - E C S Transactions

JF - E C S Transactions

SN - 1938-5862

IS - 7

ER -