Chinese Journal of Catalysis ›› 2016, Vol. 37 ›› Issue (1): 153-158.DOI: 10.1016/S1872-2067(15)61001-4

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Ruthenium nanoparticles supported on mesoporous MCM-41 as an efficient and reusable catalyst for selective oxidation of arenes under ultrasound irradiation

Alireza Khorshidi   

  1. Department of Chemisty, Faculty of Sciences, University of Guilan, P. O. Box 41335-1914, Guilan, Rasht, Iran
  • Received:2015-10-09 Revised:2015-10-24 Online:2015-12-26 Published:2015-12-26
  • Contact: Alireza Khorshidi
  • Supported by:

    This work was supported by the Research Council of University of Guilan.

Abstract:

Mesoporous MCM-41 was used as a support for the uniform dispersion of ruthenium nanoparticles having an average particle size of ~5 nm. The obtained nanocomposite, MCM-41-Ru, was characterized using inductively coupled plasma, transmission electron microscopy, energy dispersive X-ray analysis, X-ray diffraction, and BET surface area measurements. The material was employed as an efficient and recyclable catalyst in the ultrasound-assisted oxidation of arenes. It was observed that ultrasound irradiation in combination with KBrO3 as the oxidant, in the presence of MCM-41-Ru nanoparticles, accelerates the oxidation reaction to afford the desired products in good yields. The recovered catalyst retained activity for successive runs, with a continuous change in the nature of its active sites.

Key words: Nanoparticle, Ultrasound, Ruthenium, Arene oxidation, MCM-41