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http://dx.doi.org/10.3795/KSME-B.2009.33.3.186

Effect of Silica Addition on Phase Transformation Characteristics of Heat-Treated Combustion-Synthesized TiO2 Nanoparticles  

Kim, Min-Su (전북대학교 대학원 기계설계공학부)
Lee, Gyo-Woo (전북대학교 기계설계공학부)
Publication Information
Transactions of the Korean Society of Mechanical Engineers B / v.33, no.3, 2009 , pp. 186-193 More about this Journal
Abstract
In this article, the effect of silica addition on the phase transformation characteristics of $TiO_2$ nanoparticles synthesized by using an $O_2$-enriched coflow, hydrogen, diffusion flame was investigated. TTIP(titanium tetra-isopropoxide) and TEOS(tetraethyl-orthosilicate) were used as precursors for $TiO_2$ and $SiO_2$ nanoparticles, respectively. Based on the results from TEM and XRD analysis, it is believed that the silica addition on the flame synthesis of $TiO_2$ nanoparticles reduces the particle size distribution and raises the temperature of the phase transition from anatase to rutile. But the reduced sizes of the synthesized particles due to the silica addition made the sintering and phase transformation of particles more easily.
Keywords
Combution Synthesis; $TiO_2$ Nanoparticles; Silica($SiO_2$) Crystalline Structure; Phase Transformation; Heat Treatment;
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Times Cited By KSCI : 2  (Citation Analysis)
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