한국재료학회지 (Korean Journal of Materials Research)

  • 제22권10호
  • /
  • Pages.526-530
  • /
  • 2012
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  • 1225-0562(pISSN)
  • /
  • 2287-7258(eISSN)
한국재료학회 (Materials Research Society of Korea)
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Preparation of SiO2-CuO-CeO2 Composite Powders and Its Thin Film Templated with Oxalic Acid

  • Son, Boyoung (School of Biological Sciences and Chemistry/Institute of Basic Science, Sungshin Women's University) ;
  • Jung, Miewon (School of Biological Sciences and Chemistry/Institute of Basic Science, Sungshin Women's University)
  • 투고 : 2012.08.17
  • 심사 : 2012.09.19
  • 발행 : 2012.10.27
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초록

Silica-based ceramic-matrix composites have shown promise as advanced materials for many applications such as chemical catalysts, ceramics, pharmaceuticals, and electronics. $SiO_2$-CuO-$CeO_2$ multi-component powders and their thin film, using an oxalic acid template as a chelating agent, have larger surface areas and more uniform pore size distribution than those of inorganic acid catalysts. $SiO_2$-CuO-$CeO_2$ composite powders were synthesized using tetraethylorthosilicate, copper (II) nitrate hemi (pentahydrate), and cerium (III) nitrate hexahydrate with oxalic acid as template or pore-forming agent. The process of thermal evolution, the phase composition, and the surface morphology of these powders were monitored by thermogravimetry-differential thermal analysis (TG-DTA), X-ray diffractometry (XRD), field-emission scanning electron microscopy (FE-SEM), and energy dispersive X-ray spectrometry (EDXS). The mesoporous property of the powders was observed by Brunner-Emmett-Teller surface (BET) analysis. The improved surface area of this powder template with oxalic acid was $371.4m^2/g$. This multi-component thin film on stainless-steel was prepared by sol-gel dip coating with no cracks.

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참고문헌

  1. Y. L. Yun and W. H. Ju, Chem. Ind. Technol., 16(2), 98 (1998) (in Korean).
  2. K. Hwang, H. Ko and T. Yeu, J. Korean Ind. Eng. Chem., 11(5), 495 (2000) (in Korean).
  3. H. H. Kim, H. Park and K. N. Kim, Kor. J. Mater. Res., 20(5), 252 (2010) (in Korean). https://doi.org/10.3740/MRSK.2010.20.5.252
  4. Y. H. Deng, C. C. Wang, J. H. Hu, W. L. Yang and S. K. Fu, Colloid. Surface. Physicochem. Eng. Aspect., 262, 87 (2005). https://doi.org/10.1016/j.colsurfa.2005.04.009
  5. A. Dupont, C. Parent, B. Le Garrec and J. M. Heintz, J. Solid State Chem., 171, 152 (2003). https://doi.org/10.1016/S0022-4596(02)00202-5
  6. M. P. Pileni, J. Phys. Chem. B, 105, 3358 (2001). https://doi.org/10.1021/jp0039520
  7. K. Khoabane, E. M. Mokoena and N. J. Coville, Microporous Mesoporous Mater., 83, 67 (2005). https://doi.org/10.1016/j.micromeso.2005.04.002