Characteristics of La0.8Sr0.05Ca0.15CrO3 Interconnect Material for SOFC Synthesized by a Modified Pechini Method, USP, and GNP

Tak Hyoung Lim; Gil Yong Lee; Dong Hyun Peck; Rak Hyun Song; Dong Ryul Shin

doi:10.4028/www.scientific.net/SSP.124-126.799

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HomeSolid State PhenomenaSolid State Phenomena Vols. 124-126Characteristics of La0.8Sr0.05Ca0.15CrO3...

Characteristics of La_0.8Sr_0.05Ca_0.15CrO₃ Interconnect Material for SOFC Synthesized by a Modified Pechini Method, USP, and GNP

Abstract:

The characteristics of La0.8Sr0.05Ca0.15CrO3 interconnect material synthesized by modified pechini method, USP, and GNP was investigated. The powder synthesized by Pechini method exhibited somewhat aggregated shape. The precursor synthesized by USP had spherical shape and their particle size decreased somewhat after calcining procedure at 1000oC. In the case of GNP, the precursor formed agglomerated particles. The average particle size of powders synthesized by Pechini method, USP, and GNP were 0.4+m, 0.6+m, and below 10nm, respectively. The La0.8Sr0.05Ca0.15CrO3 powder had a single perovskite phase and orthorhombic structure. After sintering at 1400oC and 1500oC, the relative density of samples synthesized by pechini method was approximately 95% and that of samples synthesized by USP was slightly small. However, that of the samples synthesized by GNP was approximately 92%.

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Periodical:

Solid State Phenomena (Volumes 124-126)

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799-802

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https://doi.org/10.4028/www.scientific.net/SSP.124-126.799

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Online since:

June 2007

Authors:

Tak Hyoung Lim, Gil Yong Lee, Dong Hyun Peck, Rak Hyun Song, Dong Ryul Shin

Keywords:

Ceramic Interconnect, GNP, Lanthanum Chromite, Pechini Method, Solid Oxide Fuel Cell (SOFC), USP

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