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Catalytic performance of Mn3O4 and Co 3O4 nanocrystals prepared by sonochemical method in epoxidation of styrene and cyclooctene

Askarinejad, A ; Sharif University of Technology | 2010

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  1. Type of Document: Article
  2. DOI: 10.1016/j.apsusc.2010.04.069
  3. Publisher: 2010
  4. Abstract:
  5. A simple sonochemical method was developed to synthesis uniform sphere-like Co3O4 and Mn3O4 nanocrystals. Epoxidation of styrene and cyclooctene by anhydrous tert-butyl hydroperoxide over the prepared Co3O4 and Mn3O4 nanocatalysts was investigated. The results of conversion activity were compared with bulk Co3O4 and Mn3O4. Under optimized reaction conditions, the nanocatalysts showed a superior catalytic performance as compared to the bulk catalysts. Powder X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and BET surface area, were used to characterize and investigate the nanocatalysts
  6. Keywords:
  7. Co3O4 and Mn 3O4 nanocatalysts ; Epoxidation ; BET surface area ; Catalytic performance ; Cyclooctene ; Nanocatalysts ; Optimized reaction conditions ; Powder X ray diffraction ; SEM ; Sonochemical method ; TEM ; Tert-butylhydroperoxide ; Manganese compounds ; Nanocrystals ; Scanning electron microscopy ; Sonochemistry ; Spheres ; Styrene ; Synthesis (chemical) ; Transmission electron microscopy ; X ray diffraction ; X ray diffraction analysis ; Manganese
  8. Source: Applied Surface Science ; Volume 256, Issue 22 , 2010 , Pages 6678-6682 ; 01694332 (ISSN)
  9. URL: http://www.sciencedirect.com/science/article/pii/S0169433210005817