The nature of the support and the metal precursor on the resistance to sulphur poisoning of Pt supported catalysts
作者： P. Reyes , G. Pecchi , M. Morales , J.L.G. Fierro
DOI: 10.1016/S0926-860X(97)00138-5
关键词:
摘要: Two different series of platinum supported catalysts have been prepared, characterized and tested in the toluene hydrogenation. In each series, metal loading was constant (1 wt% Pt) two precursors, H2PtCl6 Pt(acac)2 used. Various supports (Al2O3, SiO2, ZrO2 TiO2) differing surface areas chemical properties were The by means H2 chemisorption, TPR, acidity TPD ammonia XPS. order to evaluate catalyst performance resistance deactivation sulphur poisoning also investigated. Thus, hydrogenation studied cofeeding 10 ppm thiophene while n-butane hydrogenolysis investigated over poisoned catalysts.
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sci-hub.se 参考文章(25)
Jacques Oudar, Henry Wise, Deactivation and Poisoning of Catalysts ,(1985)
M. P. Seah, D. Briggs, Practical surface analysis: By auger and x-ray photoelectron spectroscopy ,(1983)
S.D. Lin, M.A. Vannice, Hydrogenation of Aromatic Hydrocarbons over Supported Pt Catalysts .II. Toluene Hydrogenation Journal of Catalysis. ,vol. 143, pp. 554- 562 ,(1993) , 10.1006/JCAT.1993.1298
P. Reyes, J. Fern�ndez, I. Concha, G. Pecchi, M. L�pez Granados, J. L. G. Fierro, The effect of Mo on the catalytic and surface properties of Rh-Mo/ZrO2 catalysts Catalysis Letters. ,vol. 34, pp. 331- 341 ,(1995) , 10.1007/BF00806882
T. Huizinga, J. Van Grondelle, R. Prins, A temperature programmed reduction study of Pt on Al2O3 and TiO2 Applied Catalysis. ,vol. 10, pp. 199- 213 ,(1984) , 10.1016/0166-9834(84)80104-9
B.D. McNicol, R.T. Short, The influence of activation conditions on the performance of platinum/ruthenium methanol electro-oxidation catalysts surface enrichment phenomena Journal of Electroanalytical Chemistry. ,vol. 81, pp. 249- 260 ,(1977) , 10.1016/S0022-0728(77)80021-1
X. L. Seoane, A. Arcoya, Thiophene Poisoning and reactivation of a supported nickel hydrogenation catalyst: The effect of temperature Journal of Chemical Technology & Biotechnology. ,vol. 56, pp. 91- 95 ,(2007) , 10.1002/JCTB.280560116
C. D. Wagner, L. E. Davis, M. V. Zeller, J. A. Taylor, R. H. Raymond, L. H. Gale, Empirical atomic sensitivity factors for quantitative analysis by electron spectroscopy for chemical analysis Surface and Interface Analysis. ,vol. 3, pp. 211- 225 ,(1981) , 10.1002/SIA.740030506
T FISCHER, Model experiments on the poisoning of Pt catalysts by sulfur Journal of Catalysis. ,vol. 53, pp. 24- 34 ,(1978) , 10.1016/0021-9517(78)90004-0
W. Heegemann, K.H. Meister, E. Bechtold, K. Hayek, The adsorption of sulfur on the (100) and (111) faces of platinum; A LEED and AES study Surface Science. ,vol. 49, pp. 161- 180 ,(1975) , 10.1016/0039-6028(75)90334-9