Synthesis of Spherical Silica by Sol-Gel Method and Its Application as Catalyst Support

https://doi.org/10.22146/ajche.50086

Anirut Leksomboon(1*), Bunjerd Jongsomjit(2)

(1) Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok, 10330, Thailand
(2) Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok, 10330, Thailand
(*) Corresponding Author

Abstract


In this present study, the spherical silica support was synthesized from tetraethyloxysilane (TEOS), water, sodium hydroxide, ethylene glycol and n-dodecyltrimethyl ammonium bromide (C12TMABr). The particle size was controlled by variation of the ethylene glycol co-solvent weight ratio of a sol-gel method preparation in the range of 0.10 to 0.50. In addition, the particle size apparently increases with high weight ratio of co-solvent, but the particle size distribution was broader. The standard deviation of particle diameter is large when the co-solvent weight ratio is more than 0.35 and less than 0.15. However, the specific surface area was similar for all weight ratios ranging from 1000 to 1300 m2/g. The synthesized silica was spherical and has high specific surface area. The cobalt was impregnated onto the obtained silica to produce the cobalt catalyst used for CO2 hydrogenation.</

Keywords


Spherical silica, Sol-gel Method, Carbon dioxide hydrogenation

Full Text:

PDF


References

  1. L.M. Yang, Y.J. Wang, Y.W. Sun, G.S. Luo, and Y.Y. Dai: J. Colloid Interface Sci., 299 (2006) 823.
  2. Y. Yamada, K. Yano: Micropor. Mesopor. Mater.93 (2006) 190.
  3. Z. Zhang, L.Yang, Y.Wang, G. Luo, and Y. Dai:Micropor. Mesopor. Mater. 115 (2006) 447.
  4. W. Stöber, A. Fink: J. Colloid Interface Sci., 26(1968) 62.
  5. Y. Borodko, G.A. Somorjai: Appl. Cat. A 186(1999) 355.
  6. H. Li, J. Li, H. Ni, and D. Song: Catalysis letters110 (2006) 71



DOI: https://doi.org/10.22146/ajche.50086

Article Metrics

Abstract views : 37 | views : 0

Refbacks

  • There are currently no refbacks.