Abstract
Ga-promoted tungstated zirconia (GWZ) was prepared by a slurry impregnation method. The textural properties as well as the acidities of the Ga-promoted catalysts were characterized by X-ray powder diffraction (XRD), N2 adsorption, NH3 temperature-programmed desorption (NH3 TPD), microcalorimetry and H2 temperature-programmed reduction (H2 TPR). The catalytic behavior of GWZ for n-butane isomerization was studied in the presence of hydrogen. In comparison to tungstated zirconia (WZ), the catalytic activity of the Ga-promoted catalyst was greatly improved. The reason proposed for the higher activity of the Ga-promoted catalysts was that Ga enhances the oxidizing ability of the catalysts.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
L. M. Petkovic, J. R. Bielenberg and G. Larsen, J. Catal. 178 (1998) 533, 182.
X. Song and A. Sayari, Catal. Rev. Sci. Eng. 38 (1996) 329.
M. Hino and K. Arata, J. Chem. Soc. Chem. Commun. (1987) 1259.
M. Hino and K. Arata, Proc. 9th Int. Congr. Catal. (1988) 1727.
J. C. Yori, C. L. Pieck and J. M. Parera, Appl. Catal. 181 (1999) 5.
M. Scheithauer, T. K. Cheung, R. E. Jentoft, R. K. Grasselli, B. C. Gates and H. Knozinger, J. Catal. 180 (1998) 1.
J. C. Vartuli, J. G. Santiesteban, P. Traverso, N. Cardona-Martinez, C. D. Chang and S. A. Stevenson, J. Catal. 187 (1999) 131.
S. R. Vaudagna, S. A. Canavese, R. A. Comelli and N. S. Fıgoli, Appl. Catal. 168 (1998) 93.
S. R. Vaudagna, R. A. Comelli and N. S. Fıgoli, Appl. Catal. 164 (1997) 265.
M. Hino and K. Arata, J. Chem. Soc. Chem. Commun. (1979) 1148.
R. A. Comeili, C. R. Vera and M. Parera, J. Catal. 151 (1995) 96.
F. T. Tng and N. Horvat, Appl. Catal. 123 (1995) L195.
Z. Gao, Y. D. Xia, W. M. Hua and C. X. Miao, Topics Catal. 6 (1998) 101.
J. A. Moreno and G. Poncelet, J. Catal. 203 (2001) 453.
W. Wang, C. L. Chen, N. P. Xu and C. Y. Mou, Green Chem. 4 (2002) 257.
W. M. Hua and J. Sommer, Appl. Catal. 6024 (2002) 1.
Y. Y. Huang, B. Y. Zhao and Y. C. Xie, Appl. Catal. 171 (1998) 75.
C. L. Chen, T. Li, S. Cheng, N. P. Xu and C. Y. Mou, Catal. Lett. 78 (2002) 223.
S. Kuba, P. C. Heydorn, R. K. Grasselli, B. C. Gates, M. Che and H. Knozinger, Phys. Chem. Chem. Phys. 3 (2001) 146.
S. Kuba, B. C. Gates, R. K. Grasselli and H. Knozinger, Chem. Commun. (2001) 321.
S. D. Rossi, G. Ferrais, M. Valigi and D. Gazzoli, Appl. Catal. 5997 (2002) 1.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Chen, XR., Chen, CL., Xu, NP. et al. Ga-Promoted Tungstated Zirconia Catalyst for n-Butane Isomerization. Catalysis Letters 85, 177–182 (2003). https://doi.org/10.1023/A:1022137612328
Issue Date:
DOI: https://doi.org/10.1023/A:1022137612328