Sn-ZSM- 12, a new, large pore MTW type tin-silicate molecular sieve: synthesis, characterization and catalytic properties in oxidation reactions

N K, Mal and A, Bhaumik and R. , Kumar and A.V., Ramaswamy (1995) Sn-ZSM- 12, a new, large pore MTW type tin-silicate molecular sieve: synthesis, characterization and catalytic properties in oxidation reactions. Catalysis Letters, 33 . pp. 387-394.

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Abstract

A new large pore tin-silicate analogue of zeolite ZSM- 12 (MTW topology) with Si/Sn molar ratio > 70 has been synthesized hydrothermally using a new template, hexamethylene bis(benzyl dimethyl ammonium hydroxide). This material exhibits an expansion in unit cell volume (XRD), an IR band at 970 cm -1 and a charge transfer band at 205 nm in the UV-Vis region indicating the presence of Si-O-Sn units with Sn 4+ centers in Td configuration. Sn-ZSM-12 catalyzes the oxidation of phenol, m-cresol and m-xylene using dilute H202 as an oxidizing agent.

Item Type:	Article
Subjects:	Science > Chemistry
ID Code:	456
Deposited By:	Dr S Navaladian
Deposited On:	27 Mar 2007 11:52
Last Modified:	27 Mar 2007 11:52

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