Hydrothermal Synthesis and Characterization of LaSrCo Composite Oxide AITranslate

1Wilson J R,Sase M, Kawada T,et al. Measurement of oxygen exchange kinetics on thin-film La0.6 Sr0.4 CoO3-δ using nonlinear electrochemical impedance spectroscopy [J]. Electrochem Solid-State Lett, 2007, 10 (5) : BS1- B86.

3Tang Y H,Pei L Z,Lin L W,et al. Preparation of silicon nanowires by hydrothermal deposition in silicon sub- strates[J]. J Appl Phys, 2009,105(4):044 301 (1)- 044 301(4).

4Shuk P,Greenblatt M,Croft M. Hydrothermal synthesis and properties of Ce1-x EuxO2-δ solid solutions[J]. J Al- loy Comp, 2000,303 : 465-471.

5Tan L,Gu X H,Yang L,et al. Influence of powder syn- thesis methods on microstructure and oxygen permeation performance of Ba0. 5 Sr0. 5 Co0.8 Fe0.2 O3-δ perovskite-type membrances[J]. J Membr Sci, 2003,212 : 157-165.

6Gu H X,Zheng Y, Ran R,et al. Synthesis and assess ment of La0.8 Sr0.2 ScyMn1-yO3-δ as cathodes for solid oxide fuel cells on scandium-stabilized zirconia electro lyte[J]. J Power Sources, 2008,183 : 471-478.

7Stemmer S,Jacobson A J,Chen X. Oxygen vacancy orde- ring in epitaxial La0.5 Sr0.5 CoO3-δ thin films on (001) LaAlO3[J]. J Appl Phys,2001,90:3 319(1)-3 319(6).

8Ovenstone J,White J S, Misture S T. Phase transitions and phase decomposition of La1-xSrxCoO3-δ in low oxy gen partial pressures[J]. J Power Sources, 2008,181 ( 1 ) : 56-61.

10Li J,Pan Y B,Xiang C S, et al. Low temperature syn- thesis of ultrafine α-Al2O3 powder by a simple aqueous sol-gel process[J]. Ceram Int, 2006,32 : 587-591.

4A.Chuchmaa,R.J.Wiglusz,B.Macalik,P.Guchowski,B.Mazurek,W.Strek.Electric properties of La_(0.8)Sr_(0.2)CoO_3 nanoceramics[J].稀土学报：英文版,2009,27(4):646-650.

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Chinese Library Classification Number:TQ133.3[化学工程—无机化工]

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LaSrCo composite oxide was synthesized by hydrothermal process at 180 ℃ for 24 h,using lan-thanum nitrate,strontium nitrate and cobalt nitrate as the metal starting materials and citrate as the complexing agent. XRD patterns show that the product is composed of the La0.8Sr0.2CoO3-δ phase with orthorhombic hexahedral perovskite structure. SEM images show that the product is composed of 0.5 ~ 1um pherical particles. And infrared absorption spectra demonstrate that the product is composed of the main Lao.sSro.2CoO^-e component and a little residual citrate acid and adsorbed water. There are two small absorption peaks at 326 nm and 385 nm in ultraviolet absorption spectra of the product, which may be caused by the grain-boundary defects of La0.8Sr0.2CoO3-δ phase.