Fabrication of Ce1-xGdxO2-0.5x Electrolytes with Tunable Dense Microstructures for IT-SOFC Applications

Vincenzo Esposito, F.C. Fonseca, D. Z. de Florio, Milan Zunic, R. Muccillo, E. Traversa

Research output: Contribution to journalConference articleResearchpeer-review

Abstract

Nano-sized Ce1-xGdxO2-0.5x (0 < x < 0.3) powders, with a narrow particle size distribution in the 5-10 nm range, were synthesized via a soft chemical route. The obtained materials were highly sinteractive and their grain growth was strongly controlled by gadolinium dopant content. Selected fast firing and conventional sintering processes were used to tailor the dense microstructures of the electrolytes. The combined effects of grain size and dopant content on the electrical properties was evaluated taking into consideration the bulk and the grain boundary of the final microstructures. A careful control of the sintering parameters is crucial for the fabrication of tunable microstructures of nanoelectroceramics for IT-SOFC components.
Original languageEnglish
JournalE C S Transactions
Volume7
Issue number1
Pages (from-to)2093-2101
ISSN1938-5862
DOIs
Publication statusPublished - 2007
Externally publishedYes
Event10th International symposium on solid oxide fuel cells - Nara New Public Hall, Nara, Japan
Duration: 3 Jun 20078 Jun 2007
Conference number: 10

Conference

Conference10th International symposium on solid oxide fuel cells
Number10
LocationNara New Public Hall
CountryJapan
CityNara
Period03/06/200708/06/2007

Cite this

Esposito, Vincenzo ; Fonseca, F.C. ; Florio, D. Z. de ; Zunic, Milan ; Muccillo, R. ; Traversa, E. / Fabrication of Ce1-xGdxO2-0.5x Electrolytes with Tunable Dense Microstructures for IT-SOFC Applications. In: E C S Transactions. 2007 ; Vol. 7, No. 1. pp. 2093-2101.
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title = "Fabrication of Ce1-xGdxO2-0.5x Electrolytes with Tunable Dense Microstructures for IT-SOFC Applications",
abstract = "Nano-sized Ce1-xGdxO2-0.5x (0 < x < 0.3) powders, with a narrow particle size distribution in the 5-10 nm range, were synthesized via a soft chemical route. The obtained materials were highly sinteractive and their grain growth was strongly controlled by gadolinium dopant content. Selected fast firing and conventional sintering processes were used to tailor the dense microstructures of the electrolytes. The combined effects of grain size and dopant content on the electrical properties was evaluated taking into consideration the bulk and the grain boundary of the final microstructures. A careful control of the sintering parameters is crucial for the fabrication of tunable microstructures of nanoelectroceramics for IT-SOFC components.",
author = "Vincenzo Esposito and F.C. Fonseca and Florio, {D. Z. de} and Milan Zunic and R. Muccillo and E. Traversa",
year = "2007",
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language = "English",
volume = "7",
pages = "2093--2101",
journal = "E C S Transactions",
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Fabrication of Ce1-xGdxO2-0.5x Electrolytes with Tunable Dense Microstructures for IT-SOFC Applications. / Esposito, Vincenzo; Fonseca, F.C.; Florio, D. Z. de; Zunic, Milan; Muccillo, R.; Traversa, E.

In: E C S Transactions, Vol. 7, No. 1, 2007, p. 2093-2101.

Research output: Contribution to journalConference articleResearchpeer-review

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T1 - Fabrication of Ce1-xGdxO2-0.5x Electrolytes with Tunable Dense Microstructures for IT-SOFC Applications

AU - Esposito, Vincenzo

AU - Fonseca, F.C.

AU - Florio, D. Z. de

AU - Zunic, Milan

AU - Muccillo, R.

AU - Traversa, E.

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N2 - Nano-sized Ce1-xGdxO2-0.5x (0 < x < 0.3) powders, with a narrow particle size distribution in the 5-10 nm range, were synthesized via a soft chemical route. The obtained materials were highly sinteractive and their grain growth was strongly controlled by gadolinium dopant content. Selected fast firing and conventional sintering processes were used to tailor the dense microstructures of the electrolytes. The combined effects of grain size and dopant content on the electrical properties was evaluated taking into consideration the bulk and the grain boundary of the final microstructures. A careful control of the sintering parameters is crucial for the fabrication of tunable microstructures of nanoelectroceramics for IT-SOFC components.

AB - Nano-sized Ce1-xGdxO2-0.5x (0 < x < 0.3) powders, with a narrow particle size distribution in the 5-10 nm range, were synthesized via a soft chemical route. The obtained materials were highly sinteractive and their grain growth was strongly controlled by gadolinium dopant content. Selected fast firing and conventional sintering processes were used to tailor the dense microstructures of the electrolytes. The combined effects of grain size and dopant content on the electrical properties was evaluated taking into consideration the bulk and the grain boundary of the final microstructures. A careful control of the sintering parameters is crucial for the fabrication of tunable microstructures of nanoelectroceramics for IT-SOFC components.

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