A mechanistic study of nitrous oxide adsorption and decomposition on zirconia

作者: T.M. Miller , V.H. Grassian

DOI: 10.1023/A:1019058232683

关键词:

摘要: FT-IR spectroscopy and mass spectrometry have been used to study the adsorption decomposition of nitrous oxide on zirconia. It was determined that zirconia cations in 4+ oxidation state are site for molecular N2O, whereas Zr3+ sites active toward dissociative N2O at temperatures as low 25°C. Catalytic ZrO2 occurs above 350°C follows first-order reaction kinetics. Experiments utilizing isotopic labeling conjunction with were done elucidate details mechanism. Based results presented here, a mechanism is proposed.

参考文章(23)
G.K. Boreskov, The Catalysis of Isotopic Exchange in Molecular Oxygen Advances in Catalysis. ,vol. 15, pp. 285- 339 ,(1965) , 10.1016/S0360-0564(08)60556-8
T. Jin, T. Okuhara, Gilbert J. Mains, J. M. White, Temperature-programmed desorption of carbon monoxide and carbon dioxide from platinum/ceria: an important role for lattice oxygen in carbon monoxide oxidation The Journal of Physical Chemistry. ,vol. 91, pp. 3310- 3315 ,(1987) , 10.1021/J100296A040
C. Morterra, L. Orio, C. Emanuel, Infrared spectroscopic surface characterization of zirconium oxide. Part 3.—The CO/CO2 and CO/H2O interactions at the surface of a high-area monoclinic preparation Journal of the Chemical Society, Faraday Transactions. ,vol. 86, pp. 3003- 3013 ,(1990) , 10.1039/FT9908603003
J. Haber, E. M. Serwicka, The role of oxygen in catalysis Reaction Kinetics and Catalysis Letters. ,vol. 35, pp. 369- 379 ,(1987) , 10.1007/BF02062172
Ulrike Diebold, P. A. Cox, V. E. Henrich, The surface science of metal oxides ,(1994)
P. Basu, T. H. Ballinger, J. T. Yates, Wide temperature range IR spectroscopy cell for studies of adsorption and desorption on high area solids Review of Scientific Instruments. ,vol. 59, pp. 1321- 1327 ,(1988) , 10.1063/1.1139717
JB Black, JD Scott, EM Serwicka, JB Goodenough, Acrolein oxidation over 12-molybdophosphates II. Catalytic testing Journal of Catalysis. ,vol. 106, pp. 16- 22 ,(1987) , 10.1016/0021-9517(87)90206-5