Synthesis and characterization of nanocrystalline -Al2O3 by template free sol-gel method and optimizing the main parameters
Publish place: 1st Conference on Nano Technology Application in the petroleum and Petromical Industries
Publish Year: 1391
Type: Conference paper
Language: English
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MUBNANO01_058
Index date: 8 January 2013
Synthesis and characterization of nanocrystalline -Al2O3 by template free sol-gel method and optimizing the main parameters abstract
Template-free sol-gel method was employed to prepare mesoporous nanocrystalline g-Al2O3. The prepared alumina was characterized by powder XRD, N2 adsorption-desorption. Starting with aluminum ethoxide in an alcoholic solvent, where colloidal solution were initially obtained, resulted in mesoporous g-alumina with relatively high surface areas, 469.77 m2/g, and large total pore volumes, 0.9013 cc/g. In this study, the Taguchi method was applied for optimizing the most significant sol-gel parameters to achieve the largest pore diameter and the highest pore volume. The effects of three variables, pH of the solution, water/Al(Eto) molar ratio, aging time and temperature, at three levels were investigated. The optimization results showed that aging time have a great importance on crystal size of gamma alumina.
Synthesis and characterization of nanocrystalline -Al2O3 by template free sol-gel method and optimizing the main parameters Keywords:
Synthesis and characterization of nanocrystalline -Al2O3 by template free sol-gel method and optimizing the main parameters authors
Niloufar Ghavami
Chemical Engineering Department, Babol University of Technology, P.O. Box ۴۸۴, ۴۷۱۴۸۷۱۱۶۷ Babol, Iran
Majid Taghizadeh
Chemical Engineering Department, Babol University of Technology, P.O. Box ۴۸۴, ۴۷۱۴۸۷۱۱۶۷ Babol, Iran
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