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Synthesis of a Novel Redox Material UDCaT‐3: An Efficient and Versatile Catalyst for Selective Oxidation, Hydroxylation and Hydrogenation Reactions
Author(s) -
Yadav Ganapati D.,
Manyar Haresh G.
Publication year - 2008
Publication title -
advanced synthesis and catalysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.541
H-Index - 155
eISSN - 1615-4169
pISSN - 1615-4150
DOI - 10.1002/adsc.200800313
Subject(s) - chemistry , catalysis , redox , oxidizing agent , selectivity , acetophenone , cryptomelane , hydroxylation , manganese , inorganic chemistry , vanadium , photochemistry , organic chemistry , manganese oxide , enzyme
A novel, highly efficient and versatile redox catalyst, named UDCaT‐3 (the acronym derived from U niversity D epartment of C hemical T echnology series catalyst # 3 ) was developed by synthesizing manganese‐vanadium ternary oxide within the framework of manganese oxide octahedral molecular sieve. This new composite material was characterized by elemental, X‐ray diffraction, volumetric (N 2 adsorption‐desorption) and transmission electron microscopic analyses as well as by electron spin resonance and framework infrared spectroscopy. In order to study its activity and selectivity, UDCaT‐3 was used in the oxidation of alcohols to aldehydes, hydroxylation of phenol and acetophenone; and hydrogenation of p ‐nitroanisole to p ‐anisidine. It exhibited excellent activity and high selectivity towards the desired products. The active sites in UDCaT‐3 are the lattice oxygens which get depleted during reaction followed by regeneration with the help of the oxidizing agent. UDCaT‐3 is a stable, reusable and versatile catalyst.