Oxidation and isomerization of cyclohexane catalyzed by SO42-/Fe2O3-CoO under mild condition.
SO(4)(2-)/Fe(2)O(3)-CoO solid catalyst was prepared and characterized by X-ray diffraction (XRD), scanning electron microscope (SEM) and Fourier transfer infrared (FT-IR) spectroscopy. Its catalytic activities in oxidation and isomerization of cyclohexane in air under mild condition were studied by UV, GC/MS and XPS. The results suggested that isomerization and oxidation of cyclohexane under mild conditions can synchronously performed and the catalytic activity of the catalyst can be improved by promotion of Co element into the sulfated iron. The high catalytic activities of catalysts may be related to the shift of the asymmetric stretching frequency of the SO bonds of sulfate species. Finally, the possible mechanism was also proposed.
Chen
Hongwei
H
Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, Institute of Energy-Chemistry, School of Chemistry and Materials Science, Shaanxi Normal University, 710062 Xi'An, PR China.
Wang
Bo
B
Ma
Hongzhu
H
Cui
Xue
X
D002384:Catalysis; D003035:Cobalt / Q000737:chemistry; D003510:Cyclohexanes / Q000737:chemistry*; D005290:Ferric Compounds / Q000737:chemistry; D007536:Isomerism; D008855:Microscopy, Electron, Scanning; D010084:Oxidation-Reduction; D017550:Spectroscopy, Fourier Transform Infrared; D013461:Sulfur Oxides / Q000737:chemistry; D014961:X-Ray Diffraction
D003510:Cyclohexanes; D005290:Ferric Compounds; D013461:Sulfur Oxides; C000499:ferric oxide; D003035:Cobalt; C506365:Cyclohexane