• A convenient thermal decomposition-co-reduction synthesis of nanocrystalline tungsten disilicide

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    • Keywords


      Nanostructures; tungsten disilicide; chemical synthesis; X-ray diffraction; thermal analysis.

    • Abstract


      Nanocrystalline WSi2 was synthesized by a thermal decomposition-co-reduction route via the reaction of anhydrous tungsten hexachloride and sodium fluorosilicate with metallic potassium in an autoclave at 650°C. X-ray powder diffraction pattern indicated that it was tetragonal WSi2. Transmission electron microscope image showed that it consisted of particles with an average diameter of about 50 nm. TGA and DTA indicated that it had good thermal stability below 600°C in air.

    • Author Affiliations


      Jianhua Ma1 Yihong Du1 Yitai Qian2

      1. Department of Chemistry, Wenzhou University, Wenzhou, Zhejiang 325035, P.R. China
      2. Structure Research Laboratory and Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, P.R. China
    • Dates

  • Bulletin of Materials Science | News

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      Posted on July 25, 2019

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