Carbon-Supported Gold Catalyst Modified by Doping with Ag for Cyclohexene Oxidation


Article Preview

Carbon-supported gold catalysts Au/C were prepared by an impregnation-reduction method and modified by AgNO3 to obtain bi-metallic catalysts Au-Ag/C, which were characterized by X-ray-diffraction (XRD) and Transmission Electron Microscope (TEM). Their catalytic performance was tested in the oxidation of cyclohexene in an autoclave without any solvent. The results showed that Ag doping can significantly enhance the catalytic performance of carbon-supported gold catalyst. Au(1.0 wt.%)-Ag(1.0 wt.%)/C has been found to be an efficient catalyst for the cyclohexene oxidation with a conversion of 27.6% at 80 °C and 0.4 MPa for 12 h while selectivity for ∑C6 products (including cyclohexene oxide, 2-cyclohexene-1-ol, 2-cyclohexene-1-one and cyclohexane-1,2-diol) exceeding 88.9%, especially the selectivity of cyclohexane-1,2-diol up to 47.6%. Moreover, the effects of Au, Ag content on catalytic performance were also reported.



Advanced Materials Research (Volumes 236-238)

Edited by:

Zhong Cao, Yinghe He, Lixian Sun and Xueqiang Cao




Z. Y. Cai et al., "Carbon-Supported Gold Catalyst Modified by Doping with Ag for Cyclohexene Oxidation", Advanced Materials Research, Vols. 236-238, pp. 3046-3050, 2011

Online since:

May 2011




[1] A.E. Shilov and G.B. Shul'pin: Chemical Review Vol. 97(1997), p.2879.

[2] R. Luque, S.K. Badamali, J.H. Clark, M. Fleming and D.J. Macquarrie: Applied Catalysis A: General Vol. 97(2008), p.154.

[3] X.J. Meng, K.F. Lin, X.Y. Yang, Z.H. Sun, D.Z. Jiang and F.S. Xiao: Journal of Catalysis Vol. 218(2003), p.460.

[4] B. Bahramian, F.D. Ardejani, V. Mirkhani and K. Badii: Applied Catalysis A: General Vol. 345(2008), p.97.


[5] G.J. Hutchings: Catalysis Today Vol. 100(2005), p.55.

[6] M. Haruta, N. Yamada, T. Kobayashi and S. Lijima: Journal of Catalysis Vol. 115(1989), p.301.

[7] C. Baatz and U. Pruße: Catalysis Today Vol. 122(2006), p.325.

[8] A.K. Sinha, S. Seelan, S. Tsubota and M. Haruta: Topics in Catalysis Vol. 29(2004), p.95.

[9] P. Landon, P.J. Collier, A.F. Carley, D. Chadwick, A.J. Papworth, A. Burrows, C.J. Kiely and G.J. Hutchings: Physical Chemistry Chemical Physic Vol. 5 (2003), p. (1917).

[10] L.X. Xu, C.H. He, M.Q. Zhu and S. Fang: Catalysis Letters Vol. 114 (2007), p.202.

[11] C.D. Pina, E. Falletta, L. Prati and M. Rossi: Chemical Society Reviews Vol. 37 (2008), p. (2077).

[12] M.D. Hughes, Y.J. Xu, P. Jenkins, P.M. Morn, P. Landon, D. Enache, A.F. Carley, G.A. Attard, G.J. Hutchings, F. King, E.H. Stitt, P. Johnston, K. Griffin and C.J. Kiely: Nature Vol. 437 (2005), p.1132.


[13] Z.Y. Cai, M.Q. Zhu, J. Chen, Y.Y. Shen, J. Zhao, Y. Tang and X.Z. Chen: Catalysis Communications Vol. 3 (2010), p.197.

[14] C.B. Geoffrey, T.T. David and L. Catherine: Catalysis by Gold (Imperial College Press, London 2006).

[15] C.W. Yen, M.L. Lin, A.Q. Wang, S.A. Chen, J.M. Chen and C.Y. Mou: The Journal of Physical Chemistry C Vol. 113 (2009), p.17831.

[16] B.D. Li, P. He, G.Q. Yi, H.Q. Lin and Y.Z. Yuan: Catalysis Letters Vol. 133 (2009), p.33.