Acknowledgement

I am thankful to my PhD mentor Dr. HABIL. ANGELIKA BRÜCKNER for the opportunity to work with her, for her guidance and encouragement.

My sincere thanks to Prof. Dr. W. GRÜNERT and Prof. Dr. JAVIER PÉREZ-RAMÍREZ as well as to Dr. M. SCHWIDDER for providing the samples for the most part of the investigations carried out in this thesis, catalytic data and fruitful discussion.

I also thank Prof. Dr. R. STÖSSER for clarifying the doubts concerning the spectroscopy.

I am grateful to Dr. P. S. SAI PRASAD, Dr. HABIL. A. MARTIN und Prof. Dr. B. LÜCKE for encouraging me to do my Ph.D here in the Institut für Angwandte Chemie Berlin-Adlershof e.V.

I would like to thank my co-workers in the Institute for helping me during my course of study.

Dr. U. BENTRUP for her help with the FT-IR and helpful discussion.

Mr. U. MARX for his help with the EPR Experiments.

Mrs. UTE WOLF for her help with the FT-IR Experiments.

Mr. GERT-ULRICH WOLF for his help with the preparation of catalysts.

Dr. H. KOSSLICK for providing SBA-15 und MCM-41 materials.

Ms. CARLOTTA CORTELLI, Dr. EVGUENII KONDRATENKO, Dr. KALEVARU NARAYANA and Mr. R. KRÄHNERT for the help and Discussion.

I extend my thanks to Mr. LOTHAR MADER, Mrs. HEIDI FRENCH and Mrs. JUTTA KUBIAS for making my stay easier and enjoyable.

My special thanks go to Mrs. SMITHA PILLAI who helped me throughout my Ph.D with her constant support and encouragement.

Last but not least, I thank my parents and my sisters and their family, who encourage me always to do my work what I wish for. Their innumerable support and blessings always motivate me to go further into the pinnacle of success.

I dedicate this work to my PARENTS and GURUS


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