Preparation and Characterization of W@SiO2 Shielding Composite Microsphere

Zuo Sheng li; Yan Zhang; Yu Jian Liu; Jun Fang; Wei Ling Luan

doi:10.4028/www.scientific.net/AMR.1120-1121.260

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 1120-1121Preparation and Characterization of W@SiO2...

Preparation and Characterization of W@SiO₂ Shielding Composite Microsphere

Abstract:

W@SiO₂ shielding composite microspheres were prepared by Sol-gel method for the first time. The component and morphology were investigated by Fourier transform infrared (FT-IR) spectra, Transmission electron microscopy (TEM) and Energy dispersive X-ray spectroscopy (EDX). The results reveal that polyvinylpyrrolidone (PVP) was introduced to the surface of tungsten nanoparticle successfully, and tungsten nanoparticle had been coated with silica. The appropriate hydrolysis reaction time is 3h, core-shell structure W@SiO₂ shielding composite microsphere can be synthesized and free silica decrease sharply. Core element and shell element of W@SiO₂ shielding composite microspheres were proved to be tungsten and silica respectively.

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Periodical:

Advanced Materials Research (Volumes 1120-1121)

Pages:

260-263

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.1120-1121.260

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Online since:

July 2015

Authors:

Zuo Sheng li, Yan Zhang, Yu Jian Liu*, Jun Fang, Wei Ling Luan

Keywords:

Core-Shell, Nanoparticle, Shielding, W@SiO₂

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* - Corresponding Author

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