کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
51627 | 46848 | 2008 | 6 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: A magnetically recyclable heterogeneous catalyst: Cobalt nano-oxide supported on hydroxyapatite-encapsulated γ-Fe2O3 nanocrystallites for highly efficient olefin oxidation with H2O2 A magnetically recyclable heterogeneous catalyst: Cobalt nano-oxide supported on hydroxyapatite-encapsulated γ-Fe2O3 nanocrystallites for highly efficient olefin oxidation with H2O2](/preview/png/51627.png)
High catalytic activity of cobalt nano-oxide supported on hydroxyapatite-encapsulated magnetic γ-Fe2O3 nanocrystallites had been prepared. HR-TEM characterization demonstrated the formation of γ-Fe2O3 nanocrystallites within the HAP matrix with a mean diameter of 1–3 nm. The mixed Co3O4 and CoFe2O4 oxides were existed on the surface of CoHAP-γ-Fe2O3. The CoHAP-γ-Fe2O3 exhibited good catalytic activity for the oxidation of various alkenes based on a cooperation effect between these two oxides. The magnetic properties of the CoHAP-γ-Fe2O3 provided a convenient route for separation of the catalyst from the reaction mixture by application of an external permanent magnet. The spent catalyst could be recycled without appreciable loss of catalytic activity.
Journal: Catalysis Communications - Volume 10, Issue 2, 15 November 2008, Pages 237–242