Abstract
The interactions of CO with a high specific surface area tin dioxide was investigated by FTIR spectroscopy and thermogravimetric analysis. FTIR study of CO interactions have shown that CO can adsorb on cus (coordinatively unsaturated sites) Sn4+ cation sites (band at 2201 cm-1). In addition, CO reacts with surface oxygen atoms. This leads to the partial reduction of SnO2 surface and to the formation of ionised oxygen vacancies together with the release of free electrons, which are responsible for the loss of transmission. Formed CO2 can chemisorb on specific surface sites: on basic sites to form carbonates species and on acidic sites (Sn4+-CO2 species) which is in competition with the formation of Sn4+-CO species. TG experiment have shown that the reduction of SnO2 by CO at 400°C occurs in two steps. First, the reduction of SnO2 surface, which is a quick phenomenon. This has allowed to evaluate that more than 12% of reducible surface oxygens can react with CO, essentially because of the presence of a large amount of surface hydroxyl groups. The second step of the reduction of SnO2 would be the progressive reduction of SnO2 bulk by the slow diffusion of oxygen atoms from the bulk to the surface.
Similar content being viewed by others
Références
M. Labeau, B. Gautheron, F. Cellier, M. Vallet-Regi, E. Garcia and J. M. Gonzalez Calbet, J. Solid State Chem., 102 (1993) 434.
Y. Teraoka, T. Harada, T. Iwasaki, T. Ikeda, and S. Kagawa, Chem. Lett., (1993) 773.
N. D. Gangal, N. M. Gupta, and R. M. Iyer, J. Catal., 126 (1990) 13.
A. Chiorino, G. Ghiotti, F. Prinetto, M. C. Carotta, G. Martinelli and M. Merli, Sensors and Actuators B, 44 (1997) 474.
S. H. Hahn, N. Barsan and U. Weimar, Sensors and Actuators B, 78 (2001) 64.
G. J. Li and S. Kawi, Mater. Lett., 34 (1998) 99.
K. C. Song and Y. Kang, Materials Letters, 42 (2000) 283.
K. C. Song and J. H. Kim, Powder Technol., 107 (2000) 268.
D. Amalric-Popescu and F. Bozon-Verduraz, Catal. Lett., 64 (2000) 125.
P. G. Harrison and A. Guest, J. Chem. Soc., Faraday Trans. 1, 83 (1987) 3383.
E. W. Thornton and P. G. Harrison, J. Chem. Soc., Faraday Trans. 1, 71 (1975) 461.
S. Emiroglu, N. Barsan, U. Weimar and V. Hoffmann, Thin Solid Films, 391 (2001) 176.
M. Niwa, T. Minami, H. Kodama, T. Hattori and Y. Murakami, J. Catal., 53 (1978) 198.
A. Chiorino, F. Boccuzzi and G. Ghiotti, Sensors and Actuators B, 5 (1991) 189.
N. Sergent, P. Gelin, L. Perier-Camby, H. Praliaud and G. Thomas, Sensors and Actuators, B: Chemical, 84 (2002) 176.
N. Sergent, P. Gélin, L. Périer-Camby, H. Praliaud and G. Thomas, Phys. Chem. Chem. Phys., (In press).
J. Tribout, F. Chancel, M. I. Baraton, H. Ferkel and W. Riehemann, Key Eng. Mater., 132–136 (1997) 1341.
G. Ghiotti, A. Chiorino and F. Boccuzzi, Sensors and Actuators, 19 (1989) 151.
M. I. Baraton and L. Merhari, Scripta Materialia, 44 (2001) 1643.
L. H. Little, Infrared spectra of adsorbed species, 1966 p. 350.
K. Nakamoto, Wiley and Sons, New York 1978, p. 448.
H. Knoezinger, Adv. Catal., 25 (1976) 184.
N. D. Parkyns, J. Chem. Soc. A, (1969) 410.
J. B. Peri, J. Phys. Chem., 70 (1966) 3168.
J. Saussey, J. C. Lavalley and C. Bovet, J. Chem. Soc., Faraday Trans. 1, 78 (1982) 1457.
E. Guglielminotti, Langmuir, 6 (1990) 1455.
C. Morterra, E. Giamello, L. Orio and M. Volante, J. Phys. Chem., 94 (1990) 3111.
J. Oviedo and M. J. Gillan, Surf. Sci., 463 (2000) 93.
T. S. Rantala, V. Lantto and T. T. Rantala, Sens. Actuators, B, 19 (1994) 716.
D. F. Cox, T. B. Fryberger and S. Semancik, Phys. Rev. B: Condens. Matter, 38 (1988) 2072.
J. M. Themlin, R. Sporken, J. Darville, R. Caudano, J. M. Gilles and R. L. Johnson, Phys. Rev. B: Condens. Matter, 42 (1990) 11914.
P. A. Cox, R. G. Egdell, C. Harding, W. R. Patterson and P. J. Tavener, Surf. Sci., 123 (1982) 179.
V. A. Gercher and D. F. Cox, Surf. Sci., 322 (1995) 177.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Sergent, N., Gélin, P., Périer-Camby, L. et al. Study of the interactions between carbon monoxide and high specific surface area tin dioxideThermogravimetric analysis and FTIR spectroscopy. Journal of Thermal Analysis and Calorimetry 72, 1117–1126 (2003). https://doi.org/10.1023/A:1025084129973
Issue Date:
DOI: https://doi.org/10.1023/A:1025084129973