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Issue 10, 2014
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One-pot synthesis of iron doped mesoporous silica catalyst for propane ammoxidation

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Abstract

Iron doped hexagonal mesoporous silica (Fe-HMS) was successfully prepared by one-pot direct synthesis at ambient temperature by using dodecylamine as a templating agent. The catalyst has been characterized by various techniques including XRD, DR-UV-Vis, FTIR, SEM and N2 adsorption. The obtained material exhibits very large surface area (above 1000 m2 g−1), mesoporosity with narrow distribution of pores (around 4 nm) and nano-crystallites with the 20–30 nm in size. The concentration of iron in the catalyst was 0.95 wt%. The prepared material was tested in the direct ammoxidation of propane. It was shown that direct synthesis leads to better dispersion of the metal compared to the material prepared by impregnation of pure HMS silica. It is also demonstrated that this material is able to catalyze the direct ammoxidation of propane and shows quite high selectivity to acrylonitrile (52% at 11% conversion of propane).

Graphical abstract: One-pot synthesis of iron doped mesoporous silica catalyst for propane ammoxidation

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Publication details

The article was received on 27 Sep 2013, accepted on 27 Nov 2013 and first published on 20 Jan 2014


Article type: Paper
DOI: 10.1039/C3DT52695J
Dalton Trans., 2014,43, 3897-3905
  • Open access: Creative Commons BY-NC license
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    One-pot synthesis of iron doped mesoporous silica catalyst for propane ammoxidation

    E. Baďurová, K. Raabová and R. Bulánek, Dalton Trans., 2014, 43, 3897
    DOI: 10.1039/C3DT52695J

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