Paper Title:
Cyclohexane Oxidation Catalyzed by Au/MxOyAl2O3 Using Molecular Oxygen
  Abstract

Alumina was modified by doping with metal oxide and then used as the support for depositing gold by an impregnation-ammonia washing method to obtain Au/MxOy/Al2O3 (M=Co, Zr and Ce) catalysts. These samples were characterized by inductively coupled plasma-atomic emission spectrometry (ICP-AES), transmission electron microscope (TEM) and X-ray diffraction (XRD). The effects of Co3O4 content, metal oxide and mixed metal oxides on the catalytic activity for the selective oxidation of cyclohexane to cyclohexanone and cyclohexanol using molecular oxygen as oxidant were studied. The results showed that better catalytic performance was obtained over Au/MxOy/Al2O3 catalysts compared with over Au/Al2O3 catalysts. 9.69% conversion of cyclohexane and 93.31% selectivity to cyclohexanone, cyclohexanol and cyclohexyl hydroperoxide, with 1.02 ratio of cyclohexanone to cyclohexanol were obtained over the Au/MxOy/Al2O3 catalyst at 150 , 1.5 MPa for 3 h. Moreover, according to the recycling test, the catalyst could be reused four times without remarkable loss of activity.

  Info
Periodical
Advanced Materials Research (Volumes 233-235)
Edited by
Zhong Cao, Lixian Sun, Xueqiang Cao, Yinghe He
Pages
254-259
DOI
10.4028/www.scientific.net/AMR.233-235.254
Citation
J. Zhao, M. Q. Zhu, J. J. Chen, Y. Y. Yang, Y. Tang, Z. Y. Cai, Y. Y. Shen, C. H. He, "Cyclohexane Oxidation Catalyzed by Au/MxOyAl2O3 Using Molecular Oxygen", Advanced Materials Research, Vols. 233-235, pp. 254-259, 2011
Online since
May 2011
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Takeshi Miki, Yutaka Tai
Abstract:Fe2O3/Al2O3 catalyst was prepared and the catalytic oxidation of toluene over the catalyst was...
101
Authors: Shu Wei Chen, Xiao Fei Jia, Xing Yu Cui, Rui Feng Li
Chapter 8: Energy Saving, Environmental Protection, Low Carbon Ideas
Abstract:This work shows that N2O, which causes global warming, could be effectively utilized as a soft oxidant in the oxidative...
932
Authors: Xue Ju Zhang, He Song, Xiang Feng Guo, Li Hua Jia
Chapter 9: Green Chemical Process Technology
Abstract:The Fe/Cu-cross-linked montmorillonite catalysts were synthesized with Linan Na-Mont and characterized by BET, SEM, XRD. Liquid-phase...
1891
Authors: Adkham Yakubov, M.G. Kutty, Pei Lee Siew, Maizatul S. Shaharun, S.B. Abd Hamid, Vladimir Piven
Abstract:10 and 40 wt% Co/Multiwall Carbon Nanotubes (MWCNT) and 10 and 40 wt% Co/Santa Barbara Amorphous-15 (SBA-15) catalysts were prepared via...
70