Preparation of Fe Oxide and Composite Ti-Fe Oxide Ultrafine Particles in Reverse Micellar Systems.
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概要
- 論文の詳細を見る
Fe oxide and composite Ti-Fe oxide ultrafine particles have been prepared using sodium big (2-ethylhexyl) suffosoccinate (Aerosol OT; AOT)/isooctane reverse micellar solutions. Fe<SUB>2</SUB>O<SUB>3</SUB> particles were prepared by mixing a miceller solution containing sulfuric acid solution of ammonium irom (III) sulfate with an "alkaline" or a "neutral" micellar solution containing NaOH solution or distilled water, respectively. The formation of TiO<SUB>2</SUB> particles by adding titanium tetrabutoxide (TTB) to a micellar solution was also facilitated by NaOH. Simultaneous feeding of both TTB and Fe<SUP>3+</SUP> solutions did not form composite particles but only Fe<SUB>2</SUB>O<SUB>3</SUB> particles, indicating that the presence of Fe<SUP>3+</SUP> prevented the formation of cores of TiO<SUB>2</SUB>. The TiO<SUB>2</SUB> particles were thus prepared at first in the micellar solution, to which Fe<SUP>3+</SUP>-containing micellar solution was fed. The resulting particles possibly have a structure in which TiO<SUB>2</SUB> particles are coated by Fe<SUB>2</SUB>O<SUB>3</SUB> thin layer.
- The Society of Chemical Engineers, Japanの論文
著者
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Hirai Takayuki
Department Of Chemical Engineering Faculty Of Engineering Science Osaka University
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Komasawa Isao
Department Of Chemical Engineering Faculty Of Engineering Science Osaka University
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Shiojiri Susumu
Department of Chemical Engineering, Osaka University
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Mizumoto Jun-ya
Department of Chemical Science and Engineering, Graduate School of Engineering Science, Osaka University
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Shiojiri Susumu
Department of Chemical Science and Engineering, Graduate School of Engineering Science, Osaka University
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