Chem. J. Chinese Universities ›› 2004, Vol. 25 ›› Issue (12): 2199.

• Articles • Previous Articles     Next Articles

Hydrothermal Synthesis and Structure Characterization of Double Perovskite-type Oxide, Ba2SmSbO6

ZHENG Wen-Jun1, HUANG Hong-Bo2, WU Li-Yan1, XIA Yuan-Fu2   

  1. 1. Department of Chemistry, Nankai University, Tianjin 300071;
    2. Department of Physics, Nanjing University, Nanjing 210093
  • Received:2004-06-29 Online:2004-12-24 Published:2004-12-24

Abstract: Hydrothermal technique was used for the synthesis of double perovskite-type oxide Ba2SmSbO6 and the crystal structure was refined by Rietveld using GSAS software. The Ba2SmSbO6 compound has a cubic symmetry(space group Fm3m) with cell parameters a= 0.850 97(20) nm and V= 0.616 23(25) nm3, and it shows an ordered arrangement of Sm and Sb ions. The synthesized Ba2SmSbO6 was characterized by XRD, IR, ICP, XPS and 121Sb Mössbauer spectrum methods. The results indicated that the molar ratio of n(Ba):n(Sm):n(Sb) is closing to 2:1:1, and the antimony valence state is +5.

Key words: Double perovskite-type oxide, Hydrothermal synthesis, Ordered B-site ions

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