Strong metal support interaction state in the Fe/TiO2 system — an XPS study
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Strong metal support interaction with supported group VIII metals is associated with the phase transformation of the support employed. The reduced uptake of hydrogen and the enhanced reactivity in CO hydrogenation in these systems are associated with the geometrical dispersion of the metal species, which is identified to have arisen from the formation of a ternary oxide phase and its subsequent reorganization under high temperature reduction conditions. XPS experimental evidence is provided for this postulate.
KeywordsOxide Hydrogen Polymer Phase Transformation Experimental Evidence
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- 1.P. Madhusudhan Rao, V. Sudarsan andR. P. Viswanath,Indian J. Tech. (in press).Google Scholar
- 2.G. S. Lane andE. E. Wolf,J. Catal 105 (1989) 183.Google Scholar
- 4.R. I. Bickley, T. Gonzalez-Carreno andL. Palmisano, in “Preparation of catalysts IV”, edited by B. Delmon, P. Grange, P. A. Jacobs and G. Poncelet (Elsevier, Amsterdam, 1987) p. 297.Google Scholar
- 10.B. Viswanathan, T. Lakshmi andU. D. Mary,Indian J. Chem. 30 (1992) 99.Google Scholar
- 11.T. Lakshmi, PhD thesis, IIT Madras (1990).Google Scholar
- 13.C. N. R. Rao, in “Advances in solid state chemistry”, edited by C. N. R. Rao (INSA, New Delhi, 1986) p. 10.Google Scholar