Abstract
Several commercial silica samples showing different catalytic activities in the partial oxidation of methane (MPO) to formaldehyde have been investigated using FTIR technique. Two IR absorption bands at 893 and 909 cm−1, observed upon dehydroxylation of the silica catalysts and assigned to reactive siloxane sites on the surface (“strained siloxane bridges”), were found to disappear upon heating in methane at high temperature. The catalytic activity increases together with the intensity of the bands due to such “strained” sites in the different SiO2 samples.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
A. Parmaliana, F. Frusteri, D. Miceli, A. Mezzapica, M.S. Scurrell and N. Giordano, Appl. Catal. 78 (1991) L7.
A. Parmaliana, F. Frusteri, A. Mezzapica, D. Miceli, M.S. Scurrell and N. Giordano, J. Catal. 143 (1993) 262.
Q. Sun, R.G. Herman and K. Klier, Catal. Lett. 16 (1992) 251.
A. Parmaliana, V. Sokolovskii, D. Miceli, F. Arena and N. Giordano, J. Catal. 148 (1994) 514.
V.I. Lygin, Kinet. Catal. 35 (1994) 480.
A. Parmaliana, V. Sokolovskii, D. Miceli, F. Arena and N. Giordano, in:Catalytic Selective Oxidation, ACS Symp. Series 523, eds. S.T. Oyama and J.W. Hightower (Am. Chem. Soc., Washington, 1993) p. 23.
D. Pinelli, F. Trifirò, A. Vaccari, E. Giamello and G. Pedulli, Catal. Lett. 13 (1992) 21.
Y. Matsumura, J.B. Moffat and K. Hashimoto, J. Chem. Soc. Faraday Trans. 90 (1994) 1177.
V. Bolis, L. Marchese, S. Coluccia and B. Fubini, Adsorption Sci. Technol. 5 (1988) 238.
B.A. Morrow and A.J. McFarlan, Langmuir 7 (1991) 1695.
B.A. Morrow and A.J. McFarlan, J. Phys. Chem. 96 (1992) 1395.
B.A. Morrow and A. Devi, J. Chem. Soc. Faraday Trans. I 68 (1972) 403.
B.A. Morrow and I.A. Cody, J. Phys. Chem. 79 (1975) 761.
B.A. Morrow and L.A. Cody, J. Phys. Chem. 80 (1976) 1995.
B.A. Morrow and I.A. Cody, J. Phys. Chem. 80 (1976) 1998.
B.A. Morrow, I.A. Cody and L.S.M. Lee, J. Phys. Chem. 80 (1976) 2761.
B.C. Bunker, D.M. Haaland, K.J. Ward, T.A. Michalske, W.L. Smith, J.C. Binkley, C.F. Melius and C.A. Balfe, Surf. Sci. 210 (1989) 406.
C. Morterra and M.J.D. Low, J. Phys. Chem. 73 (1969) 327.
A. Burneau, O. Barrès, J.P. Gallas and J.C. Lavalley, Langmuir 6 (1990) 1364.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Vikulov, K., Martra, G., Coluccia, S. et al. FTIR spectroscopic investigation of the active sites on different types of silica catalysts for methane partial oxidation to formaldehyde. Catal Lett 37, 235–239 (1996). https://doi.org/10.1007/BF00807760
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF00807760