Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
50748 | Catalysis Communications | 2011 | 4 Pages |
A series of manganese oxides (MnO, Mn3O4, Mn2O3 and MnO2) were prepared and firstly applied as heterogeneous catalysts for the liquid phase epoxidation of alkenes with 30% H2O2 in bicarbonate solution. Under our experimental conditions, MnO exhibited superior activity for the conversion of styrene to achieve ca. 100% with 92.4% selectivity of epoxide, compared to the other three manganese oxides as well as other metal oxides. Furthermore, recycling studies showed the good recyclability of MnO as a heterogeneous catalyst, which did not lose the catalytic activity after four reuses appreciably.
Graphical abstractSimple MnO, Mn3O4, Mn2O3, and MnO2 could catalyze the epoxidation of alkenes with cheap 30% H2O2, in which MnO exhibited highly recyclable activity.Figure optionsDownload full-size imageDownload as PowerPoint slideHighlights► Simple MnOX were firstly used as catalysts for alkene epoxidation with 30% H2O2. ► MnO exhibited very high activity for the epoxidation of alkenes. ► The activity of MnO did not lose after four reuses appreciably.