Size Control of Iron Oxide Nanoparticles Using Reverse Microemulsion Method: Morphology, Reduction, and Catalytic Activity in CO Hydrogenation

Size Control of Iron Oxide Nanoparticles Using Reverse Microemulsion Method: Morphology, Reduction, and Catalytic Activity in CO Hydrogenation

Iron oxide nanoparticles were prepared by microemulsion method and evaluated in Fischer-Tropsch synthesis. The precipitation process was performed in a single-phase microemulsion operating region. Different HLB values of surfactant were prepared by mixing of sodium dodecyl sulfate (SDS) and Triton X...

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Main Authors: Mohammad Reza Housaindokht, Ali Nakhaei Pour
Format: Article
Language:English
Published: Hindawi Limited 2013-01-01
Series:Journal of Chemistry
Online Access:http://dx.doi.org/10.1155/2013/781595
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spelling doaj-4f6e2bf536b04b26b30389091094baf02020-11-24T23:51:53ZengHindawi LimitedJournal of Chemistry2090-90632090-90712013-01-01201310.1155/2013/781595781595Size Control of Iron Oxide Nanoparticles Using Reverse Microemulsion Method: Morphology, Reduction, and Catalytic Activity in CO HydrogenationMohammad Reza Housaindokht0Ali Nakhaei Pour1Department of Chemistry, Ferdowsi University of Mashhad, P.O. Box 9177948974, Mashhad, IranDepartment of Chemistry, Ferdowsi University of Mashhad, P.O. Box 9177948974, Mashhad, IranIron oxide nanoparticles were prepared by microemulsion method and evaluated in Fischer-Tropsch synthesis. The precipitation process was performed in a single-phase microemulsion operating region. Different HLB values of surfactant were prepared by mixing of sodium dodecyl sulfate (SDS) and Triton X-100. Transmission electron microscopy (TEM), surface area, pore volume, average pore diameter, pore size distribution, and XRD patterns were used to analyze size distribution, shape, and structure of precipitated hematite nanoparticles. Furthermore, temperature programmed reduction (TPR) and catalytic activity in CO hydrogenation were implemented to assess the performance of the samples. It was found that methane and CO2 selectivity and also the syngas conversion increased as the HLB value of surfactant decreased. In addition, the selectivity to heavy hydrocarbons and chain growth probability (α) decreased by decreasing the catalyst crystal size.http://dx.doi.org/10.1155/2013/781595
collection DOAJ
language English
format Article
sources DOAJ
author Mohammad Reza Housaindokht
Ali Nakhaei Pour
spellingShingle Mohammad Reza Housaindokht
Ali Nakhaei Pour
Size Control of Iron Oxide Nanoparticles Using Reverse Microemulsion Method: Morphology, Reduction, and Catalytic Activity in CO Hydrogenation
Journal of Chemistry
author_facet Mohammad Reza Housaindokht
Ali Nakhaei Pour
author_sort Mohammad Reza Housaindokht
title Size Control of Iron Oxide Nanoparticles Using Reverse Microemulsion Method: Morphology, Reduction, and Catalytic Activity in CO Hydrogenation
title_short Size Control of Iron Oxide Nanoparticles Using Reverse Microemulsion Method: Morphology, Reduction, and Catalytic Activity in CO Hydrogenation
title_full Size Control of Iron Oxide Nanoparticles Using Reverse Microemulsion Method: Morphology, Reduction, and Catalytic Activity in CO Hydrogenation
title_fullStr Size Control of Iron Oxide Nanoparticles Using Reverse Microemulsion Method: Morphology, Reduction, and Catalytic Activity in CO Hydrogenation
title_full_unstemmed Size Control of Iron Oxide Nanoparticles Using Reverse Microemulsion Method: Morphology, Reduction, and Catalytic Activity in CO Hydrogenation
title_sort size control of iron oxide nanoparticles using reverse microemulsion method: morphology, reduction, and catalytic activity in co hydrogenation
publisher Hindawi Limited
series Journal of Chemistry
issn 2090-9063
2090-9071
publishDate 2013-01-01
description Iron oxide nanoparticles were prepared by microemulsion method and evaluated in Fischer-Tropsch synthesis. The precipitation process was performed in a single-phase microemulsion operating region. Different HLB values of surfactant were prepared by mixing of sodium dodecyl sulfate (SDS) and Triton X-100. Transmission electron microscopy (TEM), surface area, pore volume, average pore diameter, pore size distribution, and XRD patterns were used to analyze size distribution, shape, and structure of precipitated hematite nanoparticles. Furthermore, temperature programmed reduction (TPR) and catalytic activity in CO hydrogenation were implemented to assess the performance of the samples. It was found that methane and CO2 selectivity and also the syngas conversion increased as the HLB value of surfactant decreased. In addition, the selectivity to heavy hydrocarbons and chain growth probability (α) decreased by decreasing the catalyst crystal size.
url http://dx.doi.org/10.1155/2013/781595
work_keys_str_mv AT mohammadrezahousaindokht sizecontrolofironoxidenanoparticlesusingreversemicroemulsionmethodmorphologyreductionandcatalyticactivityincohydrogenation
AT alinakhaeipour sizecontrolofironoxidenanoparticlesusingreversemicroemulsionmethodmorphologyreductionandcatalyticactivityincohydrogenation
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