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Metallurgy, Vol. 55 No. 4, 2016.

Preliminary communication

Synthesis and characterization hollow spherical La0.7Sr0.2Ca0.1Co0.9Fe0.1O3–δ (LSCCT) for cathode of solid oxide fuel cell (SOFC)

H. H. Yu ; School of Material Science and Engineering, Shenyang Ligong University, Shenyang, China
X. Li ; School of Material Science and Engineering, Shenyang Ligong University, Shenyang, China
Z. G. Yuan ; School of Material Science and Engineering, Shenyang Ligong University, Shenyang, China

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Abstract

Hollow spheres structures of La0.7Sr0.2Ca0.1Co0.9Fe0.1O3–δ (LSCCT) have been synthesized via hydrothermal method using carbon spheres as template. The structure and electrical conductivity of obtained samples are characterized by X-ray diffraction (XRD), scanning electron microscope (SEM), transmission electron microscope (TEM) and direct current (DC) four-probe method respectively. The results show that hollow spheres structures of LSCCT with the mean particle size of 0,9 - 1,2 μm is single perovskite. The electrical conductivity of the samples is higher than 100 S/cm from 600 to 800 ℃ and can meet the demand of the electrical properties for the cathode materials.

Keywords

synthesis; La<sub>0.7</sub>Sr<sub>0.2</sub>Ca<sub>0.1</sub>Co<sub>0.9</sub>Fe<sub>0.1</sub>O<sub>3–δ </sub>; hollow spheres; structures; electrical conductivity

Hrčak ID:

157466

URI

https://hrcak.srce.hr/157466

Publication date:

1.10.2016.

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