Abstract
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.
Similar content being viewed by others
References
P. Madhusudhan Rao, V. Sudarsan andR. P. Viswanath,Indian J. Tech. (in press).
G. S. Lane andE. E. Wolf,J. Catal 105 (1989) 183.
G. Sankar, K. R. Kannan andC. N. R. Rao,Catal. Lett. 8 (1991) 27.
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.
R. I. Bickley, T. Gonzalez-Carreno, A. R. Gonzalez-Elipe, G. Munuera andL. Palmisano,J. Chem. Soc., Faraday Trans. 90 (1994) 2257.
M. Rameswaran andC. H. Bartholomew,J. Catal. 117 (1989) 218.
S. R. Yoganarasimhan andC. N. R. Rao,Trans. Faraday Soc. 58 (1962) 1579.
R. I. Bickley, J. S. Lees, R. J. D. Tilley, L. Palmisano andM. Schiavello,J. Chem. Soc., Faraday Trans. 88 (1992) 377.
S. Matsuda andA. Kato,Appl. Catal. 8 (1983) 149;S. Takasaki, H. Suzuki, K. Takahashi, S. Tanabe, A. Ueno andY. Kotera,J. Chem. Soc., Faraday Trans. I80 (1984) 803;R. D. Shannon,J. Appl. Phys. 35 (1964) 3414.
B. Viswanathan, T. Lakshmi andU. D. Mary,Indian J. Chem. 30 (1992) 99.
T. Lakshmi, PhD thesis, IIT Madras (1990).
H. Berthou, C. K. Jorgensen andC. Bounelle,Chem. Phys. Lett. 38 (1976) 199.
C. N. R. Rao, in “Advances in solid state chemistry”, edited by C. N. R. Rao (INSA, New Delhi, 1986) p. 10.
C. N. Sayers andN. R. Armstrong,Surf. Sci. 77 (1978) 301.
C. R. Brundle, T. J. Chuang andK. Wandelt,ibid. 68 (1977) 459.
K. Yabe, K. Arata andI. Toyoshima,J. Catal. 57 (1979) 231.
J. Santos, S. J. Phillips andJ. A. Dumesic,ibid. 81 (1983) 147.
A. Nobile andM. W. Davis Jr,ibid. 116 (1989) 383.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Madhusudhan Rao, P., Viswanathan, B. & Viswanath, R.P. Strong metal support interaction state in the Fe/TiO2 system — an XPS study. J Mater Sci 30, 4980–4985 (1995). https://doi.org/10.1007/BF01154512
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/BF01154512