fulltext.study @t Gmail

Sulphur-doped graphene as metal-free carbocatalysts for the solventless aerobic oxidation of styrenes

Paper ID Volume ID Publish Year Pages File Format Full-Text
50266 46787 2015 4 PDF Available
Title
Sulphur-doped graphene as metal-free carbocatalysts for the solventless aerobic oxidation of styrenes
Abstract

•Pyrolysis of λ-carrageeenan and exfoliation lead to S-doped graphene.•XP spectroscopy shows the presence of two types of sulphur atoms.•S-doped graphene is able to promote the aerobic oxidation of styrenes.

Pyrolysis of λ-carrageenan at 1000 °C and subsequent exfoliation lead to a S-doped graphene [(S)G]. Increasing pyrolysis temperature to 1200 °C or the use of other carrageenans with lower sulphate content results in the failure of S doping. XPS confirms the presence of S atom (4.5%) with environments alike sulphide and sulphoxide. (S)G promotes the aerobic oxidation of styrenes to their corresponding benzaldehydes accompanied by lesser amounts of styrene oxide. In contrast, under the same experimental conditions reduced graphene oxide exhibits a negligible activity. (S)G was reused with almost coincident catalytic performance.

Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slide

Keywords
Graphene as catalysts; Metal-free catalysts; Carbocatalysis; Aerobic oxidation of alkenes
First Page Preview
Sulphur-doped graphene as metal-free carbocatalysts for the solventless aerobic oxidation of styrenes
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: Catalysis Communications - Volume 65, 5 May 2015, Pages 10–13
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