Synthesis of Spherical Titanium Dioxide Nanocrystals by O2+Ar Arc Plasma Method

Journal of Inorganic Materials

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Synthesis of Spherical Titanium Dioxide Nanocrystals by O₂+Ar Arc Plasma Method

WANG Yi; CUI Zuo-Lin; ZHANG Zhi-Kun

Shandong Key Laboratory of Nanostructured Materials Engineering; Qingdao University of Science and Technology; Qingdao 266042; China

Received:2003-06-19 Revised:2003-09-08 Published:2004-07-20 Online:2004-07-20

Abstract

Abstract: Spherical nanocrystals of titanium dioxide (TiO₂) were synthesized by inflight oxidation of titanium (Ti) metal-atoms in argon-oxygen thermal plasma. Morphology investigation shows that these nanoparticles obtained are perfectly spherical and dispersible. Their average grain sizes are about 20nm. XRD analysis reveals that these spherical nanoparticles are totally crystalline, comprised of anatase and rutile or their composite.

Key words: titanium dioxide, anatase, rutile, superfine particles, arc plasma method

CLC Number:

TF123

WANG Yi,CUI Zuo-Lin,ZHANG Zhi-Kun. Synthesis of Spherical Titanium Dioxide Nanocrystals by O₂+Ar Arc Plasma Method[J]. Journal of Inorganic Materials.

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Synthesis of Spherical Titanium Dioxide Nanocrystals by O₂+Ar Arc Plasma Method

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