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

doi:10.1149/1.2729323

Fabrication of Ce_1-xGd_xO_2-0.5x 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 journal › Conference article › Research › peer-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 language	English
Journal	E C S Transactions
Volume	7
Issue number	1
Pages (from-to)	2093-2101
ISSN	1938-5862
DOIs	https://doi.org/10.1149/1.2729323
Publication status	Published - 2007
Externally published	Yes
Event	10th International symposium on solid oxide fuel cells - Nara New Public Hall, Nara, Japan Duration: 3 Jun 2007 → 8 Jun 2007 Conference number: 10

Conference

Conference	10th International symposium on solid oxide fuel cells
Number	10
Location	Nara New Public Hall
Country/Territory	Japan
City	Nara
Period	03/06/2007 → 08/06/2007

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10.1149/1.2729323

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Cite this

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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",

doi = "10.1149/1.2729323",

language = "English",

volume = "7",

pages = "2093--2101",

journal = "E C S Transactions",

issn = "1938-5862",

publisher = "The Electrochemical Society",

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note = "10th International symposium on solid oxide fuel cells, SOFC X ; Conference date: 03-06-2007 Through 08-06-2007",

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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.

N1 - Conference code: 10

PY - 2007

Y1 - 2007

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.

U2 - 10.1149/1.2729323

DO - 10.1149/1.2729323

M3 - Conference article

SN - 1938-5862

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SP - 2093

EP - 2101

JO - E C S Transactions

JF - E C S Transactions

IS - 1

T2 - 10th International symposium on solid oxide fuel cells

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