Synthesis and Characterization of WO3/S Core/Shell Nanoparticles by Thermal Evaporation

Jing Wen Qian; Zhi Jian Peng; Dian Zhong Wu; Xiu Li Fu

doi:10.4028/www.scientific.net/KEM.602-603.51

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HomeKey Engineering MaterialsKey Engineering Materials Vols. 602-603Synthesis and Characterization of WO3/S Core/Shell...

Synthesis and Characterization of WO₃/S Core/Shell Nanoparticles by Thermal Evaporation

Abstract:

WO₃ has been widely applied in many fields such as electrochromic window, photocatalyst, and gas-senor. In this paper, WO₃/S core/shell nanoparticles were synthesized in high density and large scale on silicon substrates via simple thermal evaporation of WO₃ and S powders at 950 °C in a tube furnace. The morphology, composition and structure of the nanoparticles were characterized by scanning electron microscopy, transmission electron microscopy, high-resolution transmission electron microscopy, and energy dispersive X-ray spectroscopy. The results indicate that the nano-particles have a uniform morphology with a diameter in the range of 150-250 nm and well crystalline structure. The growth mechanism of the nanoparticles was also proposed.

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Periodical:

Key Engineering Materials (Volumes 602-603)

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51-54

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.602-603.51

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Online since:

March 2014

Authors:

Jing Wen Qian, Zhi Jian Peng*, Dian Zhong Wu, Xiu Li Fu

Keywords:

Nanoparticle, Synthesis, Thermal Evaporation, WO₃/S Core/Shell Structure

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