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A magnetically recyclable heterogeneous catalyst: Cobalt nano-oxide supported on hydroxyapatite-encapsulated γ-Fe2O3 nanocrystallites for highly efficient olefin oxidation with H2O2

Paper ID Volume ID Publish Year Pages File Format Full-Text
51627 46848 2008 6 PDF Available
Title
A magnetically recyclable heterogeneous catalyst: Cobalt nano-oxide supported on hydroxyapatite-encapsulated γ-Fe2O3 nanocrystallites for highly efficient olefin oxidation with H2O2
Abstract

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.

Keywords
Hydroxyapatite; Supported cobalt catalyst; H2O2; Oxidation; Cooperation effect
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A magnetically recyclable heterogeneous catalyst: Cobalt nano-oxide supported on hydroxyapatite-encapsulated γ-Fe2O3 nanocrystallites for highly efficient olefin oxidation with H2O2
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 10, Issue 2, 15 November 2008, Pages 237–242
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us