Preparation of Mo-Fe/SiO₂ and Catalytic Selective Oxidation of p-Xylene

Abstract:

The preparation of Mo–Fe/SiO₂ catalysts by sol-gel method, catalytic selective oxidations of p-xylene to terephthalaldehyde over the Mo–Fe/SiO₂ catalyst, and the effects of the supported metal on the catalytic activities were investigated. The catalysts were characterized by thermal analysis, X-ray diffraction, and Fourier transform infrared spectroscopy. Results show that the presence of Fe enhances the catalytic performance of Mo–Fe/SiO₂ on the selective oxidation of p-xylene. The addition of the optimal concentration of 15% Fe results in 53.2% conversion and 33.3% selectivity. The optimal calcination temperature of the Mo–Fe/SiO₂ catalyst was 500 °C.

• Periodical: Advanced Materials Research (Volumes 396-398)
• Pages: 782-785
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.396-398.782
• Online since: November 2011
• Authors: Yan Qiu Huang, Zi Li Liu, Jie Liu, Zu Zeng Qin, Jin Wen Wang, Huai You Wen, Ke Di Yang
• Keywords: Catalytic Selective Oxidation, Mo-Fe/SiO₂ Catalyst, P-Xylene, Terephthalaldehyde

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