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Highly reactive magnetite covered with islands of carbon: Oxidation of N and S-containing compounds in a biphasic system

Paper ID Volume ID Publish Year Pages File Format Full-Text
40592 45859 2013 8 PDF Available
Title
Highly reactive magnetite covered with islands of carbon: Oxidation of N and S-containing compounds in a biphasic system
Abstract

In this work a series of magnetite were prepared by impregnating of natural goethite (limonite) with glycerol before thermal treatment under N2 flow at 300, 400 and 500 °C. The formation of carbon spots (island) over magnetite was found. The magnetite was found to be the main phase after treatment at 400 and 500 °C with high content of Fe2+, which is the active specie in a Fenton like system. Furthermore, iron oxide particles with magnetic and amphiphilic properties were formed, which are interesting for using as a catalyst in refineries. All materials presented high catalytic activities for oxidation of quinoline and dibenzothiophene in a biphasic reaction system (water/toluene).

Graphical abstractFigure optionsDownload full-size imageDownload high-quality image (104 K)Download as PowerPoint slideHighlights► Heterogeneous oxidation of N and S organic compounds using amphiphilic catalyst. ► Magnetite covered with islands of carbon: an amphiphilic catalyst as a promising strategy. ► Amphiphilic catalyst presented high catalytic activity for oxidation of quinoline and DBT.

Keywords
Limonite; Glycerol; Amphiphilic catalyst; Oxidative process
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Highly reactive magnetite covered with islands of carbon: Oxidation of N and S-containing compounds in a biphasic system
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 450, 15 January 2013, Pages 106–113
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
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Price was $35.95
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Price after discount Only $4.95
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