Fabrication and characterization of a co-fired La0.6Sr0.4Co0.2Fe0.8O3-δ cathode-supported Ce0.9Gd0.1O1.95 thin-film for IT-SOFCs

Y. Liu; S. Hashimoto; H. Nishino; K. Takei; M. Mori

doi:10.1016/j.jpowsour.2006.10.093

Fabrication and characterization of a co-fired La_0.6Sr_0.4Co_0.2Fe_0.8O_3-δ cathode-supported Ce_0.9Gd_0.1O_1.95 thin-film for IT-SOFCs

Y. Liu, S. Hashimoto, H. Nishino, K. Takei, M. Mori

ENV - Environmental Studies for Advanced Society

Research output: Contribution to journal › Article › peer-review

46 Citations (Scopus)

Abstract

A dense membrane of Ce_0.9Gd_0.1O_1.95 on a porous cathode based on a mixed conducting La_0.6Sr_0.4Co_0.2Fe_0.8O_3-δ was fabricated via a slurry coating/co-firing process. With the purpose of matching of shrinkage between the support cathode and the supported membrane, nano-Ce_0.9Gd_0.1O_1.95 powder with specific surface area of 30 m² g^-1 was synthesized by a newly devised coprecipitation to make the low-temperature sinterable electrolyte, whereas 39 m² g^-1 nano-Ce_0.9Gd_0.1O_1.95 prepared from citrate method was added to the cathode to favor the shrinkage for the La_0.6Sr_0.4Co_0.2Fe_0.8O_3-δ. Bi-layers consisting of <20 μm dense ceria film on 2 mm thick porous cathode were successfully fabricated at 1200 °C. This was followed by co-firing with NiO-Ce_0.9Gd_0.1O_1.95 at 1100 °C to form a thin, porous, and well-adherent anode. The laboratory-sized cathode-supported cell was shown to operate below 600 °C, and the maximum power density obtained was 35 mW cm^-2 at 550 °C, 60 mW cm^-2 at 600 °C.

Original language	English
Pages (from-to)	56-64
Number of pages	9
Journal	Journal of Power Sources
Volume	164
Issue number	1
DOIs	https://doi.org/10.1016/j.jpowsour.2006.10.093
Publication status	Published - 2007 Jan 10

Keywords

Cathode-supported SOFC
Co-firing
Gadolinium-doped ceria oxide
LaSrCoFeO
Solid oxide fuel cells

ASJC Scopus subject areas

Renewable Energy, Sustainability and the Environment
Energy Engineering and Power Technology
Physical and Theoretical Chemistry
Electrical and Electronic Engineering

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1016/j.jpowsour.2006.10.093

Cite this

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title = "Fabrication and characterization of a co-fired La0.6Sr0.4Co0.2Fe0.8O3-δ cathode-supported Ce0.9Gd0.1O1.95 thin-film for IT-SOFCs",

abstract = "A dense membrane of Ce0.9Gd0.1O1.95 on a porous cathode based on a mixed conducting La0.6Sr0.4Co0.2Fe0.8O3-δ was fabricated via a slurry coating/co-firing process. With the purpose of matching of shrinkage between the support cathode and the supported membrane, nano-Ce0.9Gd0.1O1.95 powder with specific surface area of 30 m2 g-1 was synthesized by a newly devised coprecipitation to make the low-temperature sinterable electrolyte, whereas 39 m2 g-1 nano-Ce0.9Gd0.1O1.95 prepared from citrate method was added to the cathode to favor the shrinkage for the La0.6Sr0.4Co0.2Fe0.8O3-δ. Bi-layers consisting of <20 μm dense ceria film on 2 mm thick porous cathode were successfully fabricated at 1200 °C. This was followed by co-firing with NiO-Ce0.9Gd0.1O1.95 at 1100 °C to form a thin, porous, and well-adherent anode. The laboratory-sized cathode-supported cell was shown to operate below 600 °C, and the maximum power density obtained was 35 mW cm-2 at 550 °C, 60 mW cm-2 at 600 °C.",

keywords = "Cathode-supported SOFC, Co-firing, Gadolinium-doped ceria oxide, LaSrCoFeO, Solid oxide fuel cells",

author = "Y. Liu and S. Hashimoto and H. Nishino and K. Takei and M. Mori",

note = "Funding Information: This work has been supported by NEDO, Japan, as part of the Advanced Ceramic Reactor Project.",

year = "2007",

month = jan,

day = "10",

doi = "10.1016/j.jpowsour.2006.10.093",

language = "English",

volume = "164",

pages = "56--64",

journal = "Journal of Power Sources",

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T1 - Fabrication and characterization of a co-fired La0.6Sr0.4Co0.2Fe0.8O3-δ cathode-supported Ce0.9Gd0.1O1.95 thin-film for IT-SOFCs

AU - Liu, Y.

AU - Hashimoto, S.

AU - Nishino, H.

AU - Takei, K.

AU - Mori, M.

N1 - Funding Information: This work has been supported by NEDO, Japan, as part of the Advanced Ceramic Reactor Project.

PY - 2007/1/10

Y1 - 2007/1/10

N2 - A dense membrane of Ce0.9Gd0.1O1.95 on a porous cathode based on a mixed conducting La0.6Sr0.4Co0.2Fe0.8O3-δ was fabricated via a slurry coating/co-firing process. With the purpose of matching of shrinkage between the support cathode and the supported membrane, nano-Ce0.9Gd0.1O1.95 powder with specific surface area of 30 m2 g-1 was synthesized by a newly devised coprecipitation to make the low-temperature sinterable electrolyte, whereas 39 m2 g-1 nano-Ce0.9Gd0.1O1.95 prepared from citrate method was added to the cathode to favor the shrinkage for the La0.6Sr0.4Co0.2Fe0.8O3-δ. Bi-layers consisting of <20 μm dense ceria film on 2 mm thick porous cathode were successfully fabricated at 1200 °C. This was followed by co-firing with NiO-Ce0.9Gd0.1O1.95 at 1100 °C to form a thin, porous, and well-adherent anode. The laboratory-sized cathode-supported cell was shown to operate below 600 °C, and the maximum power density obtained was 35 mW cm-2 at 550 °C, 60 mW cm-2 at 600 °C.

AB - A dense membrane of Ce0.9Gd0.1O1.95 on a porous cathode based on a mixed conducting La0.6Sr0.4Co0.2Fe0.8O3-δ was fabricated via a slurry coating/co-firing process. With the purpose of matching of shrinkage between the support cathode and the supported membrane, nano-Ce0.9Gd0.1O1.95 powder with specific surface area of 30 m2 g-1 was synthesized by a newly devised coprecipitation to make the low-temperature sinterable electrolyte, whereas 39 m2 g-1 nano-Ce0.9Gd0.1O1.95 prepared from citrate method was added to the cathode to favor the shrinkage for the La0.6Sr0.4Co0.2Fe0.8O3-δ. Bi-layers consisting of <20 μm dense ceria film on 2 mm thick porous cathode were successfully fabricated at 1200 °C. This was followed by co-firing with NiO-Ce0.9Gd0.1O1.95 at 1100 °C to form a thin, porous, and well-adherent anode. The laboratory-sized cathode-supported cell was shown to operate below 600 °C, and the maximum power density obtained was 35 mW cm-2 at 550 °C, 60 mW cm-2 at 600 °C.

KW - Cathode-supported SOFC

KW - Co-firing

KW - Gadolinium-doped ceria oxide

KW - LaSrCoFeO

KW - Solid oxide fuel cells

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