Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
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Silica Coating of Nanosized CoFe2O4 Particles by Micro-emulsion Method

마이크로에멀젼법을 이용한 나노 CoFe2O4 분말의 실리카 코팅

  • Kim, Yoo-Jin (Advanced Industrial Ceramic Team, Korea Institute of Ceramic Engineering & Technology (KICET)) ;
  • Yu, Ri (Advanced Industrial Ceramic Team, Korea Institute of Ceramic Engineering & Technology (KICET)) ;
  • Park, Eun-Young (Advanced Industrial Ceramic Team, Korea Institute of Ceramic Engineering & Technology (KICET)) ;
  • Pee, Jae-Hwan (Advanced Industrial Ceramic Team, Korea Institute of Ceramic Engineering & Technology (KICET)) ;
  • Choi, Eui-Seok (Advanced Industrial Ceramic Team, Korea Institute of Ceramic Engineering & Technology (KICET))
  • 김유진 (요업(세라믹)기술원 산업도자실) ;
  • 유리 (요업(세라믹)기술원 산업도자실) ;
  • 박은영 (요업(세라믹)기술원 산업도자실) ;
  • 피재환 (요업(세라믹)기술원 산업도자실) ;
  • 최의석 (요업(세라믹)기술원 산업도자실)
  • Published : 2009.01.31
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Abstract

We report the preparation of nanocrystalline cobalt ferrite, $CoFe_2O_4$ particles and their surface coating with silica layers using micro emulsion method. The cobalt ferrite nanoparticles with the size 7nm are firstly prepared by thermal decomposition method. Hydrophobic nanoparticles were coated with silica using micro-emulsion method with surfactant, $NH_4OH$, and tetraethylorthosilicate (TEOS). Monodispersed and spherical silica coated cobalt ferrite nanoparticles have average particle diameter of 38 nm and narrow sized distribution.

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References

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