Hydrothermal saline promoted grafting: a route to sulfonic acid SBA-15 silica with ultra-high acid site loading for biodiesel synthesis
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چکیده
منابع مشابه
Pore-expanded SBA-15 sulfonic acid silicas for biodiesel synthesis.
Here we present the first application of pore-expanded SBA-15 in heterogeneous catalysis. Pore expansion over the range 6-14 nm confers a striking activity enhancement towards fatty acid methyl ester (FAME) synthesis from triglycerides (TAG), and free fatty acid (FFA), attributed to improved mass transport and acid site accessibility.
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Sulfonic acid functionalized SBA-15 as a nanoporous acid catalyst was used in the synthesis of 2-Aryl benzoxazoles 4 by the condensation of 2-aminophenol 1 and benzoyl chlorides 2 under microwave irradiation in solvent free reaction conditions. The advantages of this methodology are good product yields (60-98%), being environmentally benign, short reaction times and easy work up.
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Acid-Functionalized SBA-15-Type Silica Catalysts for Carbohydrate Dehydration Anthony J. Crisci, Mark H. Tucker, Ming-Yung Lee, Se Gyu Jang, James A. Dumesic,* and Susannah L. Scott* Department of Chemistry & Biochemistry, Department of Chemical Engineering, and Materials Research Laboratory, University of California, Santa Barbara, California 93106, United States Department of Chemical Enginee...
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In this study, the mesoporous silica SBA-15 materials containing carboxylic acid groups were used as an effective support to synthesize Cu nanoparticles. Various Cu loading levels from 4% to 13% on SBA-15 catalysts produced an average particle size of 2.8 to 3.1 nm, regardless of the Cu content.
متن کاملAn Efficient Green Approach for the Synthesis of Structurally Diversified Spirooxindoles Using Sulfonic Acid Functionalized Nanoporous Silica (SBA-Pr-SO3H)
One-pot multicomponent reaction between isatin, barbituric acid, and 6-amino-1,3-dimethyl uracil was investigated <span style="font-size: 10.0pt; ...
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ژورنال
عنوان ژورنال: Green Chem.
سال: 2014
ISSN: 1463-9262,1463-9270
DOI: 10.1039/c4gc01139b