fulltext.study @t Gmail

Efficient and reusable Co/nitrogen doped hollow carbon sphere catalysts for the aerobic oxidation of styrene

Paper ID Volume ID Publish Year Pages File Format Full-Text
40284 45849 2013 8 PDF Available
Title
Efficient and reusable Co/nitrogen doped hollow carbon sphere catalysts for the aerobic oxidation of styrene
Abstract

•HCSs were modified by doping with N to form N-HCSs by using a CVD method.•N-HCSs showed better thermal stability.•Co showed better homogeneous dispersion on the surface of N-HCSs than on HCSs.•Co is the active phase in the Co deposited catalysts.•Co/N-HCS is a selective, highly efficient and recyclable catalyst for the oxidation of styrene.

Monodispersed hollow carbon spheres (HCSs) were made by decomposition of gaseous CH3CN over silica Stöber spheres in a CVD reaction. The nitrogen doped HCSs (N = 8.7%) were used as support for well dispersed Co3O4 nanoparticles (7–8 nm; 1% and 2% Co). The Co/N-HCS samples were calcined at various temperatures. The materials calcined at 300 °C for 3 h were found to oxidize styrene to styrene oxide (styrene epoxidation) using dry air as oxidant (120 °C/DMF) with 99% styrene conversion and 85% selectivity to styrene oxide; they could also be reused in repeat catalytic reactions.

Graphical abstractFigure optionsDownload full-size imageDownload high-quality image (157 K)Download as PowerPoint slide

Keywords
Nitrogen doped carbons; Hollow carbon sphere; Cobalt oxide; Nanoparticles; Styrene oxidation
First Page Preview
Efficient and reusable Co/nitrogen doped hollow carbon sphere catalysts for the aerobic oxidation of styrene
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
Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 466, 10 September 2013, Pages 1–8
Authors
, , , ,
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