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Effect of Preparation Conditions on the Characteristics of Fe3+-K10 Clay Catalysts |
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| Authors: | A Sathyamoorthy P Raj NM Gupta SD Samant |
| Affiliation: | (1) Novel Materials and Structural Chemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India;(2) Applied Chemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India;(3) Organic Chemistry Research Laboratory, Department of Chemical Technology, University of Mumbai, Matunga, Mumbai, 400019, India |
| Abstract: | Mössbauer spectroscopy and IR techniques were employed to characterize the iron-impregnated montmorillonite K10 clay catalysts, prepared by using acetonitrile or water solutions of iron(III) chloride. Samples prepared in a non-aqueous medium consisted of comparable amounts of  -Fe2O3 and FeOOH, whereas those prepared in an aqueous medium showed only FeOOH-type species. The higher catalytic activity obtained using a non-aqueous medium for alkylation of arenes with benzyl chloride is attributed to the additional Lewis-type acidic sites associated with iron oxide. |
| Keywords: | Fe3+-K10 clay catalyst nature of active sites Mö ssbauer and IR spectroscopy |
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