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Synthesis and Characterization of Alumina-Zirconia Powders Obtained by Sol-Gel Method: Effect of Solvent and Water Addition Rate
Department of Chemical Engineering, University of Guanajuato, Guanajuato, Mexico
Department of Chemical Engineering, University of Guanajuato, Guanajuato, Mexico
Department of Chemical Engineering, University of Guanajuato, Guanajuato, Mexico
Department of Chemistry, University of Guanajuato, Guanajuato, Mexico
Department of Chemical Engineering, Metropolitan Autonomous University, Mexico city, Mexico
- 1 Department of Chemical Engineering, University of Guanajuato, Guanajuato, Mexico
- 2 Department of Chemical Engineering, University of Guanajuato, Guanajuato, Mexico
- 3 Department of Chemical Engineering, University of Guanajuato, Guanajuato, Mexico
- 4 Department of Chemistry, University of Guanajuato, Guanajuato, Mexico
- 5 Department of Chemical Engineering, Metropolitan Autonomous University, Mexico city, Mexico
Materials Sciences and Applications·Volume 03 (2012)·Pages 650–657·Published 26 September 2012·DOI10.4236/msa.2012.39095
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Abstract
The influence of solvent and the rate of addition of water on the characteristics of alumina-zirconia powders obtained by sol-gel method were investigated. The Al 2 O 3 -ZrO 2 powders (1:1 molar ratio) were prepared using aluminum tri-sec-butoxide and zirconium n-propoxide as precursors. Ethanol (EtOH), isopropanol (iPrOH) and isobutanol (iBuOH) were used as solvents. The Al 2 O 3 -ZrO 2 powders were characterized by nitrogen physisorption (S BET ), Fourier transformed infrared spectroscopy (FT-IR), thermogravimetric analysis (TGA), differential thermal analysis (DTA), X-ray diffraction (XRD) and scanning electron microscopy (SEM). Prepared oxides calcined at 700℃ showed high specific surface area (200 - 240 m2/g). Obtained results suggest that the homogeneity of the mixed oxides is favored by using a water addition rate of 0.06 and 0.10 mL/min with ethanol as solvent.
KeywordsAlumina-ZirconiaMixed OxidesSol Gel MethodEffect of SolventWater Addition Rate
- J. G. Seo, M. H. Youn and K. M. Cho, “Effect of Al2O3-ZrO2 Xerogel Support on Hydrogen Production by Steam Reforming of LNG over Ni/Al2O3-ZrO2 Catalyst,” Korean Journal of Chemical Engineering, Vol. 25, No. 1, 2008, pp. 41-45. doi:10.1007/s11814-008-0007-4
- J. G. Seo, M. H. Youn, K. M. Cho, S. Park and I. K. Song, “Preparation of Ni/Al2O3-ZrO2 Catalysts and Their Application to Hydrogen Production by Steam Reforming of LNG: Effect of ZrO2 Content Grafted on Al2O3,” Catalysis Today, Vol. 138, No. 3-4, 2008, pp. 130-134.doi:10.1016/j.cattod.2008.05.006
- P. Jasso, M. Torres, F. Tzompanzi and M. Asomoza, “Nanostructured Carbon on Steam Reforming Catalysts,” Journal of New Materials for Electrochemical Systems, Vol. 11, No. 2, 2008, pp. 95-98.
- Q. Liu, A. Wang, X. Wang, P. Gao, X. Wang and T. Zhang, “Synthesis, Characterization and Catalytic Applications of Mesoporous ?-Alumina from Boehmite Sol,” Microporous and Mesoporous Materials, Vol. 111, No. 1-3, 2008, pp. 323-333.doi:10.1016/j.micromeso.2007.08.007
- P. D. L. Mercera, J. G. Van Ommen, E. B. M. Doesburg, A. J. Burggraaf and J. R. H. Ross, “Stabilized Tetragonal Zirconium Oxide as a Support for Catalysts,” Applied Catalysis, Vol. 78, No. 1, 1991, pp. 79-96. doi:10.1016/0166-9834(91)80090-J
- M. G. Cutrufello, I. Ferino, R. Monaci, E. Rombi and V. Solin, “Acid-Base Properties of Zirconium, Cerium and Lanthanum Oxides by Calorimetric and Catalytic Investigation,” Topics in Catalysis, Vol. 19, No. 3-4, 2002, pp. 225-240. doi:10.1023/A:1015376409863
- C. Bozo, N. Guilhaume, E. Garbowski and M. Primet, “Combustion of Methane on CeO2-ZrO2 Based Catalysts,” Catalysis Today, Vol. 59, No. 1-2, 2000, pp. 33-45. doi:10.1016/S0920-5861(00)00270-4
- A. Haryanto, S. Fernando, N. Murali and S. Adhikari, “Current Status of Hydrogen Production Techniques by Steam Reforming of Ethanol: A Review,” Energy & Fuels, Vol. 19, No. 5, 2005, pp. 2098-2106. doi:10.1021/ef0500538
- A. Srivastava and M. K. Dongare, “Low-Temperature Preparation of Tetragonal Zirconia,” Materials Letters, Vol. 5, No. 3, 1987, pp. 111-115.doi:10.1016/0167-577X(87)90086-3
- P. D. L. Mercera, J. G. Van Ommen, E. B. M. Doesburg, A. J. Burggraaf and J. R. H. Ross, “Zirconia as a Support for Catalysts: Evolution of the Texture and Structure on Calcination in Air,” Applied Catalysis, Vol. 57, No. 1, 1990, 127-148. doi:10.1016/S0166-9834(00)80728-9
- W. Zhang and F. P. Glasser. “Condensation and Gelation of Inorganic ZrO2-Al2O3 Sols,” Journal of Materials Science, Vol. 28, No. 4, 1993, pp. 1129-1135.doi:10.1007/BF00400902