@article { ISI:000239224100005,
	title = {Silica-supported bis(imino)pyridyl iron(II) catalyst: nature of the support-catalyst interactions},
	journal = {Polymer International},
	volume = {55},
	number = {8},
	year = {2006},
	month = {AUG},
	pages = {854-861},
	publisher = {JOHN WILEY \& SONS LTD},
	type = {Article},
	address = {THE ATRIUM, SOUTHERN GATE, CHICHESTER PO19 8SQ, W SUSSEX, ENGLAND},
	abstract = {<p>Ethylene polymerizations were performed using silica-supported 2,6-bis[1-(2,6-diisopropylphenylimino) ethyl] pyridine iron(II) dichloride with methylaluminoxane (MAO) as co-catalyst. Silica was calcined at 600, 400 and 200 degrees C under vacuum for 8 h. The effect of calcination temperature of silica on the polymerization activity and the properties of the polymers obtained were examined. Catalyst-support interactions were examined by both a chemical method and XPS. It was observed that upon supporting the catalyst on the surface of silica, there is an increase in the binding energy of the metal center. However, no change in the metal binding energy was observed on supporting the catalyst to silica calcined at different temperatures. Ethylene polymerizations were performed using MAO as co-catalyst. Catalysts were also prepared by first pretreating silica with NIAO, followed by addition of the Fe(II) catalyst and contacting a complex of Fe(II) catalyst-MAO with silica previously calcined at 400 degrees C for 8 h. The results indicate that there is no chemical bonding between the support and the catalyst. (C). 2006 Society of Chemical Industry.</p>},
	keywords = {bis(imino) pyridyl iron(II) complex, Polyethylene, silica, supported catalyst, XPS},
	issn = {0959-8103},
	doi = {10.1002/pi.2020},
	author = {Ray, Saptarshi and Sivaram, Swaminathan}
}
@article { ISI:000282663700004,
	title = {Synthesis of acrolein by gas-phase dehydration of glycerol over silica supported bronsted acidic ionic liquid catalysts},
	journal = {Journal of Chemical Technology and Biotechnology},
	volume = {85},
	number = {10},
	year = {2010},
	month = {OCT},
	pages = {1319-1324},
	publisher = {JOHN WILEY \& SONS LTD},
	address = {THE ATRIUM, SOUTHERN GATE, CHICHESTER PO19 8SQ, W SUSSEX, ENGLAND},
	abstract = {<p>BACKGROUND: Glycerol has become readily available as a byproduct from the biodiesel industry. High functionality and relatively low price make it a potential building block to produce value-added derivatives such as acrolein. RESULTS: Dehydration of glycerol to acrolein was performed over several silica supported Bronsted acidic ionic liquids as catalysts. All the catalysts prepared were active for the synthesis of acrolein (conversion of glycerol was observed in the range 35-90\% with selectivity to acrolein in the range 29-58\%). CONCLUSIONS: Catalyst prepared from triphenyl (3-sulfopropyl) phosphonium 4-methylbenzenesulfonate gave good activity and selectivity at 4 h reaction time. The conversion of glycerol decreased with increase in glycerol concentration. Higher temperature (325 degrees C) resulted in significantly lower conversion as well as selectivity to acrolein. With the use of two additional traps cooled to -7 degrees C, the selectivity to acrolein increased significantly for good catalysts. (C) 2010 Society of Chemical Industry</p>},
	keywords = {acidic ionic liquids, acrolein, glycerol dehydration, supported catalyst},
	issn = {0268-2575},
	doi = {10.1002/jctb.2434},
	author = {Munshi, Mudassir K. and Lomate, Samadhan T. and Deshpande, Raj Madhukar and Rane, Vilas H. and Kelkar, Ashutosh A.}
}
