Preparation of La0.9K0.1 CoO3 perovskite composite oxide

Wang Wei; Du Chuanjin; Xu Xiang; Qiu Xiaojin

doi:10.1007/BF02841277

Journal of Wuhan University of Technology Materials Science Edition ›› 2005, Vol. 20 ›› Issue (4) : 32 -34. DOI: 10.1007/BF02841277

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Preparation of La_0.9K_0.1 CoO₃ perovskite composite oxide

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Abstract

Two methods for preparing la_2.9K₀: CoO₃ perovskite composite oxides, traditional solid state reaction method and sol-gel method, were compared. The characteristics of the powders, such as purity, particle diameter, BET surface area, pore diameter, were investigated by using TG-DTA, XRD, SEM and BET methods. The experimental results show that La_0.9K_0.1 CoO₃ perovskite composite oxide can be obtained by using the two methods. The purity of La_0.9K₀: CoO₃ powders can be increased by raising the calcining temperature while the particle diameter increased and BET surface area decreased. At the same calcining temperature, the properties of the La_0.9K₀: CoO₃ powders synthesized by the sol-gel method are superior to those synthesized by the solid state reaction method, such as purer phase, smaller particle diameter, which can be used as a satisfactory catalyst in diesel waste gas cleaning.

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La_0.9K₀: CoO₃ / perovskite composite oxides / Sol-gel method / diesel waste gas cleaning

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Wang Wei, Du Chuanjin, Xu Xiang, Qiu Xiaojin. Preparation of La_0.9K_0.1 CoO₃ perovskite composite oxide. Journal of Wuhan University of Technology Materials Science Edition, 2005, 20(4): 32-34 DOI:10.1007/BF02841277

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References

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[1]	Teraoka Y, Nakano K, Kagawa K, . Simultaneous Removal of Nitrogen Oxides and Diesel Soot Particulates Catalyzed by Perovskite Type Oxides. Appl. Catal. B, 1995, 5: 181-185.

[2]	Teraoka Y, Nakano K, Shangguan W F, . Simultaneous Catalytic Removal of Nitrogen Oxide and Diesel Soot Particulate over Perovskite Related Oxides. Catal. Today, 1996, 27: 107-113.

[3]	Shangguan W F, Teraoka Y, Kagawa S. Simultaneous Catalytic Removal of NO_x and Diesel Soot Particulates over Temary AB₂O₄ Spinel-type Oxides. Appl Catal B, 1996, 8: 217-227.

[4]	Shangguan W F, Teraoka Y, Kagawa S. Promotion Effect of Potassium on the Catalytic Property of CuFe₂O₄ for the Simultaneous Removal of NO_x and Diesel Soot Particulate. Appl Catal B, 1998, 16: 149-154.

[5]	Teraoka Y, Shangguan W F, Kagawa S. Reaction Mechanism of Simultaneous Catalytic removal of NO_x and Diesel Soot Particulates Research. Chem. Inter., 2000, 26: 201-206.

[6]	Guanghui LIU, Zhen Huang, Wenfeng Shangguan, . Investigation on Simultaneously Catalytic Removal of Diesel Particulate Matter and NO_x(l). Transactions of CSICE, 2003, 1: 40-44.