• Journal of the Korean Ceramic Society
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• v.52 no.5
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• pp.344-349
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• 2015

An interconnect is the key component of solid oxide fuel cells that electrically connects unit cells and separates fuel from oxidant in the adjoining cells. To improve their surface stability in high-temperature oxidizing environments, metallic interconnects are usually coated with conductive oxides. In this study, lanthanum nickelates ($LaNiO_3$) with a perovskite structure are synthesized and applied as protective coatings on a metallic interconnect (Crofer 22 APU). The partial substitution of Co, Cu, and Fe for Ni improves electrical conductivity as well as thermal expansion match with the Crofer interconnect. The protective perovskite layers are fabricated on the interconnects by a slurry coating process combined with optimized heat-treatment. The perovskite-coated interconnects show area-specific resistances as low as $16.5-37.5m{\Omega}{\cdot}cm^2$ at $800^{\circ}C$.

• 한국신재생에너지학회:학술대회논문집
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• 2009.06a
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• pp.311-314
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• 2009

Recently by the development of the electronic engineering technology various mobile devices are developed. But their operation time need to be extended although capacity of the batteries are limited. We focused our attention to the portable SOFC system. Because SOFC has the high efficiency and a lot of strongness in comparison with other kinds of fuel cells, We evaluated hydrogen fed SOFC 50W system theoretically and got the results about the operating condition range from the comparison of the power efficiency, exhaust gas temperature, required heat for maintaining the operation temperature and operation time.

• Journal of the Korean Ceramic Society
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• v.43 no.11 s.294
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• pp.746-750
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• 2006

NiO films and Ru co-sputtered NiO films were deposited by reactive magnetron sputtering for micro-solid oxide fuel cell anode applications. The deposited films were reduced to form porous films. The reduction kinetics of the Ru doped NiO film was more sluggish than that of the NiO film, and the resulting microstructure of the former exhibited finer pore networks. The possibility of using the films for the anodes of single chamber micro-SOFCs was investigated using an air/fuel mixed environment. It was found that the abrupt increase in the resistance is suppressed in the Ru co-sputtered film, as compared to undoped film.

• 한국전기화학회:학술대회논문집
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• 2002.07a
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• pp.105-110
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• 2002

• 한국전기화학회:학술대회논문집
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• 2001.06a
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• pp.118-123
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• 2001

• 한국전기화학회:학술대회논문집
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• 1998.10a
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• pp.91-91
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• 1998

• 한국전기화학회:학술대회논문집
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• 1998.10a
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• pp.72-72
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• 1998

• Proceedings of the Korean Institute of Surface Engineering Conference
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• 1999.10a
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• pp.27-28
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• 1999

• 한국전기화학회:학술대회논문집
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• 2000.10a
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• pp.49-49
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• 2000

• 한국전기화학회:학술대회논문집
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• 2003.10a
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• pp.61-61
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• 2003