Kochurani, George; Dr.Sugunan, S; Dr.Mohanan, P V(Cochin University of Science and Technology, December , 2006)
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Abstract:
The prime intension of the present work was a synthetic investigation of the
preparation, surface properties and catalytic activity of some transition metal
substituted copper chromite catalysts. Homogeneous co-precipitation method is
employed for the preparation of catalysts. Since the knowledge about the structure and
composition of the surface is critical in explaining the reactivity and selectivity of a
solid catalyst. a systematic investigation of the physico-chemical properties of the
prepared systems was carried out. The catalytic activity of these systems has also been
measured in several oxidation reactions of industrial as well as environmental
relevance. The thesis is dedicated to several aspects of chromite spinels giving
emphasis to its preparation, characterization and catalytic performance towards
oxidation reactions.
Description:
Department of Applied Chemistry,
Cochin University of Science and Technology
Ramankutty, C G; Dr.Sugunan, S(Cochin University of Science & Technology, November , 2000)
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Abstract:
The present study describes the surface properties and catalytic activities of
ferrospinels containing Co, Ni and Cu prepared by the low temperature route. Various
physico-chemical methods have been adopted to characterise the systems. The reactions
carried out are the Friedel-Crafts benzoylation of aromatics and the cyclohexanol
decomposition. We have attempted the sulphate modification of the ferrites and have
studied the surface and catalytic properties of the sulphated analogues.The work is presented in six chapters, the last chapter giving the summary and
conclusions of the results presented earlier. Our samples prove as potential catalysts for
the benzoylation of aromatics , for which truly heterogeneous catalysts are rare. Again ,
the materials show remarkable dehydration/dehydrogenation activities during
cyclohexanol decomposition. There is plenty of scope for research in this field, especially
in the development of environmentally benign catalysts for acylation reactions.
Description:
Department of Applied Chemistry,
Cochin University of Science and Technology