Fabrication and characterization of micro-tubular cathode-supported SOFC for intermediate temperature operation

Yu Liu; Shin Ichi Hashimoto; Hanako Nishino; Katsuhito Takei; Masashi Mori; Toshio Suzuki; Yoshihiro Funahashi

doi:10.1016/j.jpowsour.2007.08.101

Fabrication and characterization of micro-tubular cathode-supported SOFC for intermediate temperature operation

Yu Liu, Shin Ichi Hashimoto, Hanako Nishino, Katsuhito Takei, Masashi Mori, Toshio Suzuki, Yoshihiro Funahashi

ENV - Environmental Studies for Advanced Society

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

60 Citations (Scopus)

Abstract

We report the fabrication and characterization of a micro-tubular cathode-supported cell consisting of a Ce_0.9Gd_0.1O_1.95 electrolyte with a Ni-cermet anode on a porous La_0.6Sr_0.4Co_0.2Fe_0.8O_3-δ/Ce_0.9Gd_0.1O_1.95 (60:40 volume) tube (460 μm wall thickness and 2.26 mm diameter). The cells were fabricated by a cost-effective technique involving extrusion molding and slurry coating through a co-firing process. Densification of the ceria film (thickness < 15 μm) was successful by co-firing the laminated electrolyte with the porous cathode at 1200 °C. NiO-Ce_0.9Gd_0.1O_1.95 (Ni: Ce_0.9Gd_0.1O_1.95 = 50:50 in volume after reduction) was subsequently sintered on the electrolyte at 1100 °C to construct a 10 μm thick, porous and well-adherent anode. The cell having 1.5 cm tube length fed with humidified 30 vol.% H₂-Ar (3% H₂O) yielded the maximum power densities of 0.16, 0.13 and 0.11 W cm^-2, at 600, 550 and 500 °C, respectively. It was found that the cell performance is strongly dominated by the tube length, due to a high substrate resistance from the cathode current collections.

Original language	English
Pages (from-to)	95-102
Number of pages	8
Journal	Journal of Power Sources
Volume	174
Issue number	1
DOIs	https://doi.org/10.1016/j.jpowsour.2007.08.101
Publication status	Published - 2007 Nov 22

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)

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10.1016/j.jpowsour.2007.08.101

Cite this

@article{042ea52cfb6a47409dceb8a73eb4a9ca,

title = "Fabrication and characterization of micro-tubular cathode-supported SOFC for intermediate temperature operation",

abstract = "We report the fabrication and characterization of a micro-tubular cathode-supported cell consisting of a Ce0.9Gd0.1O1.95 electrolyte with a Ni-cermet anode on a porous La0.6Sr0.4Co0.2Fe0.8O3-δ/Ce0.9Gd0.1O1.95 (60:40 volume) tube (460 μm wall thickness and 2.26 mm diameter). The cells were fabricated by a cost-effective technique involving extrusion molding and slurry coating through a co-firing process. Densification of the ceria film (thickness < 15 μm) was successful by co-firing the laminated electrolyte with the porous cathode at 1200 °C. NiO-Ce0.9Gd0.1O1.95 (Ni: Ce0.9Gd0.1O1.95 = 50:50 in volume after reduction) was subsequently sintered on the electrolyte at 1100 °C to construct a 10 μm thick, porous and well-adherent anode. The cell having 1.5 cm tube length fed with humidified 30 vol.% H2-Ar (3% H2O) yielded the maximum power densities of 0.16, 0.13 and 0.11 W cm-2, at 600, 550 and 500 °C, respectively. It was found that the cell performance is strongly dominated by the tube length, due to a high substrate resistance from the cathode current collections.",

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

author = "Yu Liu and Hashimoto, {Shin Ichi} and Hanako Nishino and Katsuhito Takei and Masashi Mori and Toshio Suzuki and Yoshihiro Funahashi",

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

year = "2007",

month = nov,

day = "22",

doi = "10.1016/j.jpowsour.2007.08.101",

language = "English",

volume = "174",

pages = "95--102",

journal = "Journal of Power Sources",

issn = "0378-7753",

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number = "1",

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TY - JOUR

T1 - Fabrication and characterization of micro-tubular cathode-supported SOFC for intermediate temperature operation

AU - Liu, Yu

AU - Hashimoto, Shin Ichi

AU - Nishino, Hanako

AU - Takei, Katsuhito

AU - Mori, Masashi

AU - Suzuki, Toshio

AU - Funahashi, Yoshihiro

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

PY - 2007/11/22

Y1 - 2007/11/22

N2 - We report the fabrication and characterization of a micro-tubular cathode-supported cell consisting of a Ce0.9Gd0.1O1.95 electrolyte with a Ni-cermet anode on a porous La0.6Sr0.4Co0.2Fe0.8O3-δ/Ce0.9Gd0.1O1.95 (60:40 volume) tube (460 μm wall thickness and 2.26 mm diameter). The cells were fabricated by a cost-effective technique involving extrusion molding and slurry coating through a co-firing process. Densification of the ceria film (thickness < 15 μm) was successful by co-firing the laminated electrolyte with the porous cathode at 1200 °C. NiO-Ce0.9Gd0.1O1.95 (Ni: Ce0.9Gd0.1O1.95 = 50:50 in volume after reduction) was subsequently sintered on the electrolyte at 1100 °C to construct a 10 μm thick, porous and well-adherent anode. The cell having 1.5 cm tube length fed with humidified 30 vol.% H2-Ar (3% H2O) yielded the maximum power densities of 0.16, 0.13 and 0.11 W cm-2, at 600, 550 and 500 °C, respectively. It was found that the cell performance is strongly dominated by the tube length, due to a high substrate resistance from the cathode current collections.

AB - We report the fabrication and characterization of a micro-tubular cathode-supported cell consisting of a Ce0.9Gd0.1O1.95 electrolyte with a Ni-cermet anode on a porous La0.6Sr0.4Co0.2Fe0.8O3-δ/Ce0.9Gd0.1O1.95 (60:40 volume) tube (460 μm wall thickness and 2.26 mm diameter). The cells were fabricated by a cost-effective technique involving extrusion molding and slurry coating through a co-firing process. Densification of the ceria film (thickness < 15 μm) was successful by co-firing the laminated electrolyte with the porous cathode at 1200 °C. NiO-Ce0.9Gd0.1O1.95 (Ni: Ce0.9Gd0.1O1.95 = 50:50 in volume after reduction) was subsequently sintered on the electrolyte at 1100 °C to construct a 10 μm thick, porous and well-adherent anode. The cell having 1.5 cm tube length fed with humidified 30 vol.% H2-Ar (3% H2O) yielded the maximum power densities of 0.16, 0.13 and 0.11 W cm-2, at 600, 550 and 500 °C, respectively. It was found that the cell performance is strongly dominated by the tube length, due to a high substrate resistance from the cathode current collections.

KW - Cathode-supported SOFC

KW - Co-firing

KW - Gadolinium-doped ceria oxide

KW - LaSrCoFeO

KW - Solid oxide fuel cells

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SN - 0378-7753

VL - 174

SP - 95

EP - 102

JO - Journal of Power Sources

JF - Journal of Power Sources

IS - 1

ER -

Fabrication and characterization of micro-tubular cathode-supported SOFC for intermediate temperature operation

Abstract

Keywords

ASJC Scopus subject areas

UN SDGs

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