Abstract
Realistic surface science models of supported molybdenum- and tungsten-based hydro-treating catalysts have been made by impregnating planar thin films of silica and alumina with aqueous solutions of the normally utilized precursor salts of active elements. These models have enabled detailed studies of catalyst preparation and hydrodesulfurization kinetics. Optimization of the catalysts is possible by applying appropriate chelating agents for the promoting elements cobalt and nickel. These complexes work by stabilizing the promoting element such that during sulfidation MoS2 and WS2 structures form before the promoters are released so that these have a higher chance to end up at the edges of MoS2 and WS2 instead of forming the less active Co9S8 and Ni2S3 phases. The extent to which sulfidation of the promoter cobalt is delayed correlates with the activity of the catalyst for thiophene hydrodesulfurization.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
references
G.A. Somorjai, Introduction to Surface Chemistry and Catalysis, Wiley, New York, (1994).
J.W. Niemantsverdriet, Spectroscopy in Catalysis, Wiley–VCH, Weinheim (2000).
C.R. Henry, Sur. Sci. Rep. 31 (1998).231
C.T. Campbell, Sur. Sci. Rep.27 (1997).1
H.J. Freund, M. Baumer and H. Kuhlenbeck, Adv. Catal. 45 (2000) 333.
P.L.J. Gunter, J.W. Niemantsverdriet, F.H. Ribeiro and G.A. Somorjai, Catal. Rev.-Sci. Eng. 39 (1997) 77.
J.W. Gosselink, CatTech 4 (1998) 127.
H. Topsøe, B.S. Clausen and F.E. Massoth, ‘Hydrotreating Catalysis’ Springer-Verlag, Berlin, 1996).
H. Topsøe and B.S. Clausen, Catal. Rev.-Sci. Eng. 26 (1984) 395.
R. Prins, V.H.J. de Beer and G.A. Somarjai, Catal. Rev.-Sci. Eng. 31 (1989) 1.
B. Scheffer, P.J. Mangnus and J.A. Moulijn, J. Catal. 121 (1990) 18.
A.M. de Jong, H.J. Borg, L.J. van IJzendoorn, V.G.M.F. Soudant, V.H.J. de Beer, J.A.R. van Veen and J.W. Niemantsverdriet, J. Phys. Chem. 97 (1993) 6477.
J.C. Muijsers, Th. Weber, R.M. van Hardeveld, H.W. Zandbergen and J.W. Niemantsverdriet, J. Catal. 157 (1995) 698.
Th. Weber, J.C. Muijsers and J.W. Niemantsverdriet, J. Phys. Chem. 99 (1995) 9194.
Th. Weber, J.C. Muijsers, J.H.M.C. van Wolput, C.P.J. Verhagen and J.W. Niemantsverdriet, J. Phys. Chem. 100 (1996) 14144.
H.R. Reinhoudt, A.D. van Langeveld, P.J. Kooyman, R.M. Stockman, R. Prins, H.W. Zandbergen and J.A. Moulijn, J. Catal. 179 (1998) 443.
J.A.R. van Veen, E. Gerkema, A.M. van der Kraan and A. Knoester, J. Chem. Soc., Chem. Commun. 22 (1987) 1684.
R. Cattaneo, T. Shido and R. Prins, J. Catal. 185 (1999) 199.
A.M. de Jong, V.H.J. de Beer, J.A.R. van Veen and J.W. Niemantsverdriet, J. Phys. Chem.100 (1996) 17722.
L. Coulier, V.H.J. de Beer, J.A.R. van Veen and J.W. Niemantsverdriet, Top. Catal.13 (2000) 99.
L. Coulier, W. Beek, V.H.J. de Beer, J.A.R. van Veen and J.W. Niemantsverdriet, J. Catal.197 (2001) 26.
G. Kishan, L. Coulier, V.H.J. de Beer, J.A.R. van Veen and J.W. Niemantsverdriet, JCS. Chem. Commun. (2000) 1103.
G. Kishan, L. Coulier, V.H.J. de Beer, J.A.R. van Veen and J.W. Niemantsverdriet, J. Catal. 196(2000) 180.
L. Coulier, G. Kishan, J.A.R. van Veen and J.W. Niemantsverdriet, J. Phys. Chem. B. 106(2002) 5897.
G. Kishan, L. Coulier, J.A.R van Veen and J.W. Niemantsverdriet, J. Catal. 200 (2001) 194.
A.J. ven der Vlies, G. Kishan, J.W. Niemantsverdriet, R. Prins and Th. Weber, J. Phys. Chem. B. 106 (2002) 3449.
Y. Ohta, T. Shimizu, T. Honma and M. Yamada, Stud. Surf. Sci. Catal. 127 (1999) 161.
M.J. Vissenberg, Y. van der Meer, E.J.M. Henson, V.H.J. de Beer, A.M. van der Kraan and R.A. van Santen, J. Catal. 198 (2001) 151.
Y. van der Meer, M.J. Vissenberg, V.H.J. de Beer, J.A.R. van Veen and A.M. van der Kraan, Hyperfine Interact. 139/140 (2002) 51.
R.M. van Hardeveld, P.L.J., Gunter, L.J. van Ijzendoorn, W. Wieldraaijer, W.W. Kuipers and J.W. Niemantsverdriet, Appl. Surf. Sci. 84 (1995) 339.
J.F. Moulder, W.F. Stickle, P.E. Sobol and K.D. Bomben, Handbook of XPS, Perkin Elmer Corporation, Eden Prairie, MN 1992).
A.F.H. Sanders, A.M. de Jong V.H.J. de Beer, J.A.R. van Veen and J.W. Niemantsverdriet, Appl. Surf. Sci. 144–145 (1999) 380.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Kishan, G., van Veen, J. & Niemantsverdriet, J. Realistic Surface Science Models of Hydrodesulfurization Catalysts on Planar Thin-Film Supports: The Role of Chelating Agents in the Preparation of CoW/SiO2 catalysts. Topics in Catalysis 29, 103–110 (2004). https://doi.org/10.1023/B:TOCA.0000029792.45691.d4
Issue Date:
DOI: https://doi.org/10.1023/B:TOCA.0000029792.45691.d4