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Iron oxide nanoparticles supported on pyrolytic graphene oxide as model catalysts for Fischer Tropsch synthesis

Paper ID Volume ID Publish Year Pages File Format Full-Text
40539 45857 2013 7 PDF Available
Title
Iron oxide nanoparticles supported on pyrolytic graphene oxide as model catalysts for Fischer Tropsch synthesis
Abstract

•The surface properties of graphene oxides were tuned by thermal treatment.•A series of model catalysts were built by loading iron oxides NPs on them.•Differences in the catalytic behavior in FTS reaction were observed.•It is the chemical groups on the supports affect the catalytic properties.

A series of model catalysts were prepared by using monodisperse iron oxide nanoparticles as the metal precursor and pyrolytic graphene oxides as catalyst support. The catalysts have been employed in the Fischer Tropsch Synthesis (FTS) to study the carbon support effect on the iron active phase. Remarkable catalytic discrepancies in FTS activity and product selectivity were observed, with the pyrolytic treatments of the carbon support at 873 K significantly improved the catalytic performance, particularly for the C5+ hydrocarbon yields. X-ray adsorption spectroscopy, XPS, Raman and TEM characterization techniques were used to reveal the interaction of carbon support with the active Fe species. It was found that catalytic behavior is closely associated with the evolution of surface oxygen-containing groups on the carbon supports. The carbon supports might affect the iron based FTS catalyst through a poisoning-like route of binding parts of the active sites by surface oxygen.

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Keywords
Fischer Tropsch Synthesis; Iron oxide nanoparticles; Graphene oxide
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Iron oxide nanoparticles supported on pyrolytic graphene oxide as model catalysts for Fischer Tropsch synthesis
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 456, 10 April 2013, Pages 233–239
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