Abstract
Supported iron catalysts are active for hydrocarbon oxidation with H2O2, but the hydrogen peroxide dismutation is a shortcoming that may constrain their applications. Herein, we attempted to address this problem using potassium and phosphate-doped iron oxide–silica nanocomposite (KPFeSi) synthesized via sol–gel methods. The promoted silica–iron oxide nanocomposite has been characterized by elemental analyses, FTIR, X-ray powder diffraction (XRD), scanning electron microscopy (SEM) and Brunauer-Emmett-Teller (BET) surface-size determination. The synthesized KPFeSi was an active catalyst in the low-temperature liquid phase oxidation of various alkyl aromatics with hydrogen peroxide in conversions of 31–78%. Furthermore, the direct oxidation of benzene into phenol using hydrogen peroxide has been achieved in the absence of any acid with this KPFeSi compound.
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The authors are grateful to the financial support of this study by the Zanjan University.
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Masoudian, S., Monfared, H.H. Selective oxidation of aromatic hydrocarbons by potassium and phosphorous-modified iron oxide–silica nanocomposite. Transition Met Chem 37, 37–43 (2012). https://doi.org/10.1007/s11243-011-9554-3
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DOI: https://doi.org/10.1007/s11243-011-9554-3