Acta Phys. -Chim. Sin. ›› 2007, Vol. 23 ›› Issue (06): 959-963.doi: 10.3866/PKU.WHXB20070633

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Solvothermal Synthesis of Mesoporous SnO2 with Spongy Structure

ZHAO Hai-Jun; HOU Hai-Tao; CAO Jie-Ming ZHENG Ming-Bo; LIU Jing-Song; ZHANG Fang   

  1. Nanomaterials Research Institute, College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, P. R. China

  • Received:2006-10-31 Revised:2006-12-27 Published:2007-06-04
  • Contact: CAO Jie-Ming E-mail:jmcao@nuaa.edu.cn

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Abstract: Mesoporous tin dioxide (SnO2) was synthesized by thermal decomposition of the precursor obtained via a solvothermal method in the presence of SnCl4·5H2O, urea and ethanol. The calcined sample was characterized in detail by X-ray diffraction (XRD), Fourier transform infrared (FT-IR) techniques, transmission electron microscopy(TEM), thermal analysis (TG-DTA) and nitrogen adsorption-desorption measurements. The characterization results showed that the calcined sample in 300 ℃ was spongy structure tin dioxide with meso-porosity which was formed by accumulating nanoparticles (particle size: ca 5 nm). The pore size ranged from 2 to 8 nm, and the BET surface area increased to 134 m2·g-1.

Key words: Tin dioxide, Solvothermal synthesis, Mesoporous, Nanoparticle, Heat treatment