@article { ISI:000249091400025,
	title = {Sulfonic acid functionalized mesoporous silicas and organosilicas: synthesis, characterization and catalytic applications},
	journal = {Journal of Molecular Catalysis A-Chemical},
	volume = {274},
	number = {1-2},
	year = {2007},
	month = {SEP},
	pages = {153-158},
	publisher = {ELSEVIER SCIENCE BV},
	type = {Article},
	address = {PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS},
	abstract = {<p>Ethane bridged mesoporous organosilicas and MCM-41 having sulfonic acid groups in the pore channels were prepared by co-condensation method as well as grafting method, using 3-mercaptopropyltriethoxysilane (3-MPTS) as the sulfur precursor. TEM and N-2 sorption isotherm analysis revealed that the mesoporous structural ordering is retained after the functionalization and modifications of organic groups while FT-IR, Raman, XPS and solid-state C-13 CP MAS NMR shows the presence of sulfonic acid groups and the stability of the mesoporous framework. The catalytic activity of the developed materials was evaluated in the liquid phase Claisen-Schmidt condensation reaction of acetophenone with benzaldehyde, to probe the effect of mesoporous support surfaces as well as the role of preparation methods. Results showed that sulfonic acid functionalized ethane-silica samples were more active, selective and stable than the conventional sulfonic acid containing mesoporous catalysts. (c) 2007 Elsevier B.V. All rights reserved.</p>},
	keywords = {condensation, ethane-silica, heterogeneity, sulfonic acids},
	issn = {1381-1169},
	doi = {10.1016/j.molcata.2007.04.040},
	author = {Shylesh, S. and Samuel, Prinson P. and Srilakshmi, Ch. and Parischa, Renu and Singh, A. P.}
}
