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Matematika dan Ilmu Pengetahuan Alam

ISSN 0852-4556

Vol. 9 / No. 2 / Published : 2005-07

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Original Article :

Sintesis dan karakterisasi campuran oksidasuperasam sio2 zro2

Author :

  1. Endang Dwi Siswani*1
  2. Hari Sutrisno*2
  3. Suharto*3
  4. Susila Kristianingrum*4
  1. Jurdik Kimia, FMIPA, Universitas Negeri Yogyakarta (UNY)
  2. Jurdik Kimia, FMIPA, Universitas Negeri Yogyakarta (UNY)
  3. Jurdik Kimia, FMIPA, Universitas Negeri Yogyakarta (UNY)
  4. Jurdik Kimia, FMIPA, Universitas Negeri Yogyakarta (UNY)

Abstract :

The aims of this research are to prepare and to study of mixed oxide SiO2-ZrO2. Its have been obtained via hydrolysis and condensation of tetraethyl orthosilicate (TEOS), ZrOCl2.8H2O and mixed tetrapropil ammonium bromide (TPABr)-NH4OH in water or ethylen glicol by hydrothermal or solvothermal method. The SiO2-ZrO2 mixed oxide system contains strong acid sites and shows mixing of SiO2 and ZrO2 on an atomic scale in the amorphous coprecipitate. The acidity of mixed oxide SiO2-ZrO2 adopt model Thomas on the Si-rich side and model Tanabe on the Si-rich side

Keyword :

Mixed Oxides, Super acid, Heterogeneous acid catalyst,


References :

  1. Bosman HJM, (1995). Characterization of the Acidity of SiO2-ZrO2 Mixed Oxides
    . Technische UniV. Eindhoven : Disertation
  2. Sutrisno H, (2003). Titanium oxide-based sol-gel polymer. . : World Intellectual Patent Organization (WIPO)
  3. Brohan L, (2003). Titanium oxide-based sol-gel polymer. . : World Intellectual Patent Organization (WIPO)
  4. Joubert O, (2003). Titanium oxide-based sol-gel polymer. . : World Intellectual Patent Organization (WIPO)
  5. Caldes Rouillon, M.T., (2003). Titanium oxide-based sol-gel polymer. . : World Intellectual Patent Organization (WIPO)
  6. Puzenat E, (2003). Titanium oxide-based sol-gel polymer. . : World Intellectual Patent Organization (WIPO)
  7. Rouet A, (2003). Titanium oxide-based sol-gel polymer. . : World Intellectual Patent Organization (WIPO)
  8. Piffard Y, (2003). Titanium oxide-based sol-gel polymer. . : World Intellectual Patent Organization (WIPO)


   


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