Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
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Preparation of $(La, Sr)MnO_3$ Powder by Glycine-Nitrate Process Using Oxide as Starting Materials

Glycine-Nitrate Process를 이용한 산화물 출발물질로부터 $(La, Sr)MnO_3$ 분말의 제조

  • 김재동 (연세대학교 세라믹공학과) ;
  • 문지웅 (연세대학교 세라믹공학과) ;
  • 김구대 (한국과학기술연구원 세라믹공정센터) ;
  • 김창은 (연세대학교 세라믹공학과)
  • Published : 1997.10.01
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Abstract

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.

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References

  1. Science and Technology of Ceramic Fuel Cell N. Q. Minh;Takehiko Takahashi
  2. GRI Report N. Q. Minh(et al.)
  3. J. Am. Ceram. Soc. v.76 no.3 Ceramic Fuel Cell N. Q. Minh
  4. Mater. Res. Bull. v.24 Crystallographic, Thermal and Electrochemical Properties of the System Lai-xSrx for High Temperature Solid Electrolyte Fuel Cell A Hammouche;E. Siebert;A. Hammou
  5. US. Patent v.3 no.330 Method of Preparing Lead and Alkaline Earth Titanates and Niobates and Coating Method Using the Some to Form a Capacitor M. P. Pechini
  6. Materials Letters v.10 Glycine-Nitrate combustion synthesis of oxide ceramic powders L. A. Chick;L. R. Pederson;G.D. Maupin
  7. Solid State Ionics v.52 Chemical Reactivity and Interdiffusion of (La, Sr) MnO₃and (Zr,Y)O₃ J. A. M. van Roosmalen;E. P. H Cordfunke
  8. Solid State Ionics v.52 Synthesis, air sintering and properties of lanthanum and yttrium chromites and manganites J. Lambert Bates;L. A. Chick;W. J. Weber