Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
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Fabrication and Characterization of Silica Coated Fe3O4 Nanoparticles in Reverse Micro Emulsion

마이크로에멀젼법을 이용하여 실리카 코팅된 나노 Fe3O4 분말의 합성과 분석연구

  • Yu, Ri (Engineering Ceramic Center, Korea Institute of Ceramic Engineering & Technology (KICET)) ;
  • Kim, Yoo-Jin (Engineering Ceramic Center, Korea Institute of Ceramic Engineering & Technology (KICET)) ;
  • Pee, Jae-Hwan (Ceramicware Technology Center, Korea Institute of Ceramic Engineering & Technology (KICET)) ;
  • Hwang, Kwang-Taek (Ceramicware Technology Center, Korea Institute of Ceramic Engineering & Technology (KICET)) ;
  • Yang, Hee-Seung (Engineering Ceramic Center, Korea Institute of Ceramic Engineering & Technology (KICET)) ;
  • Kim, Kyung-Ja (Engineering Ceramic Center, Korea Institute of Ceramic Engineering & Technology (KICET))
  • 유리 (한국세라믹기술원 엔지니어링세라믹센터) ;
  • 김유진 (한국세라믹기술원 엔지니어링세라믹센터) ;
  • 피재환 (한국세라믹기술원 도자세라믹센터) ;
  • 황광택 (한국세라믹기술원 도자세라믹센터) ;
  • 양희승 (한국세라믹기술원 엔지니어링세라믹센터) ;
  • 김경자 (한국세라믹기술원 엔지니어링세라믹센터)
  • Published : 2010.03.31
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Abstract

The silica coated $Fe_3O_4$ nanoparticles have been synthesized using a micro-emulsion method. The $Fe_3O_4$ nanoparticles with the sizes 6 nm in diameter were synthesized by thermal decomposition method. Hydrophobic $Fe_3O_4$ nanoparticles were coated silica using surfactant and tetraethyl orthosilicated (TEOS) as a $SiO_2$ precursor. Shell thickness of silica coated $Fe_3O_4$ can be controlled (11~20 nm) through our synthetic conditions. The $Fe_3O_4$ and silica coated $Fe_3O_4$ nano powders were characterized by transmission electron microscopy (TEM), x-ray diffraction (XRD) and vortex magnetic separation (VMS).

Keywords

References

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