Title: Superfine Fe-V-O Catalyst for Liquid-Phase Oxidation of Toluene to Benzaldehyde
Abstract: Iron-vanadium oxide catalyst(Fe-V-O) samples were prepared by co-precipitation,gel combustion,and hydrothermal method,respectively.The catalytic activity of the as-prepared catalyst in the liquid-phase oxidation of toluene by hydrogen peroxide was tested.In addition,the physicochemical properties of these samples were characterized by N2 adsorption-desorption,powder X-ray diffraction,Fourier transform infrared spectroscopy,scanning electron microscopy,energy dispersive X-ray spectroscopy,and H2 temperature-programmed reduction.The preparation method significantly affected the structure,specific surface area,morphology,surface V/Fe ratio and reducibility of the as-prepared catalyst samples.Fe-V-O sample prepared by hydrothermal method exhibited the highest benzaldehyde yield and better reusability compared with other investigated samples,due to its smaller particle size,larger specific surface area,higher V/Fe surface ratio and the moderate reducibility.
Publication Year: 2012
Publication Date: 2012-01-01
Language: en
Type: article
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