Effect of Synthetic Parameters on Structural, Textural, and Catalytic Properties of Nanocrystalline Sulfated Zirconia Prepared by Sol−Gel Technique

A series of sulfated zirconia samples were synthesized by a two-step sol−gel technique using zirconium propoxide as a precursor having two different concentrations, hydrolyzed with aqueous ammonia at pH 9−10 and sulfated with sulfuric acid. Effects of various synthetic parameters were studied on the...

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Bibliographic Details
Published in:Industrial & engineering chemistry research 2003-11, Vol.42 (23), p.5727-5736
Main Authors: Mishra, Manish. K, Tyagi, Beena, Jasra, Raksh. V
Format: Article
Language:English
Subjects:
Catalysis
Catalysts: preparations and properties
Chemistry
Exact sciences and technology
General and physical chemistry
Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry
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Summary:A series of sulfated zirconia samples were synthesized by a two-step sol−gel technique using zirconium propoxide as a precursor having two different concentrations, hydrolyzed with aqueous ammonia at pH 9−10 and sulfated with sulfuric acid. Effects of various synthetic parameters were studied on the structural, textural, and catalytic properties, which were determined using XRD, FT-IR, DRIFT, N2 adsorption−desorption isotherms, and benzylation of toluene. The sol−gel technique resulted in the formation of nanocrystalline sulfated zirconia having a low crystallite size (
ISSN:0888-5885
1520-5045
DOI:10.1021/ie030099t