| Glycine-Nitrate Process를 이용한 산화물 출발물질로부터 $(La, Sr)MnO_3$ 분말의 제조 |
| 김재동, 문지웅, 김구대1, 김창은 |
연세대학교 세라믹공학과
1한국과학기술연구원 세라믹공정센터 |
| Preparation of $(La, Sr)MnO_3$ Powder by Glycine-Nitrate Process Using Oxide as Starting Materials |
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| ABSTRACT |
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The (La, Sr)MnO3 powder used as air-electrode material of Solid Oxide Cell (SOFC) was synthesized by Modified-GNP(Modified-Glycine Nitrate Process). The powders were prepared using oxide and carbonate stable in atmosphere and nitric acid was used as a solvent of starting material as well as an oxidant for combustion. The (La, Sr)MnO3 powders were synthesized with 0.5, 1, 2, 3, 4 of glycine/cation molar ratio. The ICP (Inductively Coupled Plasma Mass Spectrometer) result represented compositional equality between synthesized and desired powders. In case of 2 molar ratio, the as-synthesized powder showed perovskite phase and specific surface area were 19 $m^2$/g. After calcination of 85$0^{circ}C$, the calcined powder except 0.5, 1 molar ratio of glycine to cation showed perovskite phase. |
| Key words:
Modified-GNP, Glycine, $(La, Sr)MnO_3$, Perovskite |
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