Silica-supported Fe-Mo-O catalysts for selective oxidation of propylene glycol D. Yu. Ebert, N. V. Dorofeeva, A. S. Saveleva [и др.]
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ArticleSubject(s): окисление пропиленгликоля | молибдат железа | метилглиоксаль | катализаторыGenre/Form: статьи в журналах Online resources: Click here to access online
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Catalysis today Vol. 333. P. 133-139Abstract: Selective oxidation of propylene glycol is studied over silica-supported FeMoO catalysts with different Mo/Fe molar ratio. The catalysts are synthesized by wetness impregnation method and characterized by XRD, UV–vis, Raman spectroscopy, TPR and DFT methods. The catalytic properties are tested under gas phase conditions at 350 °C. The selectivity towards methylglyoxal formation is shown to be determined by the Mo/Fe molar ratio. The 55% selectivity towards methylglyoxal is achieved at Mo/Fe molar ratio of 3:1 through OH activation and CH bond scission route. CC bond cleavage route results in predominant formaldehyde formation at the Mo/Fe molar ratio of 1:2.
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Selective oxidation of propylene glycol is studied over silica-supported FeMoO catalysts with different Mo/Fe molar ratio. The catalysts are synthesized by wetness impregnation method and characterized by XRD, UV–vis, Raman spectroscopy, TPR and DFT methods. The catalytic properties are tested under gas phase conditions at 350 °C. The selectivity towards methylglyoxal formation is shown to be determined by the Mo/Fe molar ratio. The 55% selectivity towards methylglyoxal is achieved at Mo/Fe molar ratio of 3:1 through OH activation and CH bond scission route. CC bond cleavage route results in predominant formaldehyde formation at the Mo/Fe molar ratio of 1:2.
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