Abstract
A combination of various transient and steady-state kinetic experiments was used to provide evidence for dynamical changes in a Cu/ZnO/Al2O3 catalyst of industrial interest. From these it can be deduced that the reversible structural alterations strongly depend on the reaction conditions as well as on the pretreatment. The pretreatment was found to induce changes in the morphology of the metallic Cu particles to some extent, and surface alloying under more severe reducing conditions.
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J.B. Hansen, in: Handbook of Heterogeneous Catalysis, Vol. 3, eds. G. Ertl, H. Knözinger and J. Weitkamp (VCH Verlagsgesellschaft, Weinheim, 1997) p. 1856.
K. Tohji, Y. Udagawa, T. Mizushima and A. Ueno, J. Phys. Chem. 89 (1985) 5671.
M. Muhler, E. Tornqvist, L.P. Nielsen, B.S. Clausen and H. Topsøe, Catal. Lett. 25 (1994) 1.
B.S. Clausen, J. Schiøtz, L. Grabaek, C.V. Ovesen, K.W. Jacobson, J.K. Nørskov and H. Topsøe, Top. Catal. 1 (1994) 367.
H. Topsøe, C.V. Ovesen, B.S. Clausen, N.-Y. Topsøe, P.E. Højlund Nielsen, E. Tornqvist and J.K. Nørskov, Stud. Surf. Sci. Catal., 109 (1997) 121.
J.-D. Grunwaldt, A.M. Molenbroek, N.-Y. Topsøe, H. Topsøe and B.S. Clausen, J. Catal. 194 (2000) 452.
J.W. Couves, J.M. Thomas, D. Waller, R.H. Jones, A.J. Dent, G.E. Derbyshire and G.N. Greaves, Nature 354 (1991) 465.
A.J. Dent, M.P. Wells, R.C. Farrow, C.A. Ramsdale, G.E. Derbyshire, G.N. Greaves, J.W. Couves and J.M. Thomas, Rev. Sci. Instrum. 63 (1992) 903.
G. Sankar, J.M. Thomas, D. Waller, J.W. Couves, C.R.A. Catlow and G.N. Greaves, J. Phys. Chem. 96 (1992) 7485.
C.V. Ovesen, B.S. Clausen, J. Schiøtz, P. Stoltze, H. Topsøe and J.K. Nørskov, J. Catal. 168 (1997) 133.
N.-Y. Topsøe and H. Topsøe, Top. Catal. 8 (1999) 267.
K.-D. Jung, O.-S. Joo and S.-H. Han, Catal. Lett. 68 (2000) 49.
M.S. Spencer, Surf. Sci. 192/193 (1987) 329.
M. Muhler, L.P. Nielsen, E. Tornqvist, B.S. Clausen and H. Topsøe, Catal. Lett. 14 (1992) 241.
T. Genger, O. Hinrichsen and M. Muhler, Catal. Lett. 59 (1999) 137.
G.C. Chinchen, C.M. Hay, H.D. Vanderwell and K.C. Waugh, J. Catal. 103 (1987) 79.
O. Hinrichsen, T. Genger and M. Muhler, Chem. Eng. Technol. 11 (2000) 956.
H. Bielawa, M. Kurtz, T. Genger and O. Hinrichsen, Ind. Eng. Chem. Res. 40 (2001) 2793.
S.J. Tauster, S.C. Fung and R.L. Garten, J. Am. Chem. Soc. 100 (1978) 170.
J.T. Sun, I.S. Metcalfe and M. Sahibzada, Ind. Eng. Chem. Res. 38 (1999) 3868.
J. Tabatabaei, B.H. Sakakini, M.J. Watson and K.C. Waugh, Catal. Lett. 59 (1999) 143.
B.H. Sakakini, J. Tabatabaei, M.J. Watson and K.C. Waugh, J. Mol. Catal. A: Chemical 162 (2000) 297.
O. Hinrichsen, T. Genger and M. Muhler, Stud. Surf. Sci. Catal. 130 (2000) 3825.
G. Meitzner and E. Iglesia, Catal. Today 53 (1999) 433.
G.C. Chinchen, K.C. Waugh and D.A. Whan, Appl. Catal. 25 (1986) 101.
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Wilmer, H., Hinrichsen, O. Dynamical Changes in Cu/ZnO/Al2O3 Catalysts. Catalysis Letters 82, 117–122 (2002). https://doi.org/10.1023/A:1020560628950
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DOI: https://doi.org/10.1023/A:1020560628950