Methane-induced Activation Mechanism of Fused Ferric Oxide-Alumina Catalysts during Methane Decomposition

Handle URI:
http://hdl.handle.net/10754/621682
Title:
Methane-induced Activation Mechanism of Fused Ferric Oxide-Alumina Catalysts during Methane Decomposition
Authors:
Reddy Enakonda, Linga; Zhou, Lu; Saih, Youssef; Ould-Chikh, Samy ( 0000-0002-3486-0944 ) ; Lopatin, Sergei; Gary, Daniel; Del-Gallo, Pascal; Basset, Jean-Marie ( 0000-0003-3166-8882 )
Abstract:
Activation of Fe2O3-Al2O3 with CH4 (instead of H2) is a meaningful method to achieve catalytic methane decomposition (CMD). This reaction of CMD is more economic and simple against commercial methane steam reforming (MSR) as it produces COx-free H2. In this study, for the first time, structure changes of the catalyst were screened during CH4 reduction with time on stream. The aim was to optimize the pretreatment conditions through understanding the activation mechanism. Based on results from various characterization techniques, reduction of Fe2O3 by CH4 proceeds in three steps: Fe2O3→Fe3O4→FeO→Fe0. Once Fe0 is formed, it decomposes CH4 with formation of Fe3C, which is the crucial initiation step in the CMD process to initiate formation of multiwall carbon nanotubes. © 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
KAUST Department:
KAUST Catalysis Center (KCC); Core Lab; King Abdullah University of Science and Technology; Thuwal 23955-6900 Saudi Arabia
Citation:
Reddy Enakonda L, Zhou L, Saih Y, Ould-Chikh S, Lopatin S, et al. (2016) Methane-induced Activation Mechanism of Fused Ferric Oxide-Alumina Catalysts during Methane Decomposition. ChemSusChem 9: 1911–1915. Available: http://dx.doi.org/10.1002/cssc.201600500.
Publisher:
Wiley-Blackwell
Journal:
ChemSusChem
Issue Date:
27-Jun-2016
DOI:
10.1002/cssc.201600500
Type:
Article
ISSN:
1864-5631
Sponsors:
The work has been supported by Air Liquide company.
Appears in Collections:
Articles; KAUST Catalysis Center (KCC)

Full metadata record

DC FieldValue Language
dc.contributor.authorReddy Enakonda, Lingaen
dc.contributor.authorZhou, Luen
dc.contributor.authorSaih, Youssefen
dc.contributor.authorOuld-Chikh, Samyen
dc.contributor.authorLopatin, Sergeien
dc.contributor.authorGary, Danielen
dc.contributor.authorDel-Gallo, Pascalen
dc.contributor.authorBasset, Jean-Marieen
dc.date.accessioned2016-11-03T13:22:40Z-
dc.date.available2016-11-03T13:22:40Z-
dc.date.issued2016-06-27en
dc.identifier.citationReddy Enakonda L, Zhou L, Saih Y, Ould-Chikh S, Lopatin S, et al. (2016) Methane-induced Activation Mechanism of Fused Ferric Oxide-Alumina Catalysts during Methane Decomposition. ChemSusChem 9: 1911–1915. Available: http://dx.doi.org/10.1002/cssc.201600500.en
dc.identifier.issn1864-5631en
dc.identifier.doi10.1002/cssc.201600500en
dc.identifier.urihttp://hdl.handle.net/10754/621682-
dc.description.abstractActivation of Fe2O3-Al2O3 with CH4 (instead of H2) is a meaningful method to achieve catalytic methane decomposition (CMD). This reaction of CMD is more economic and simple against commercial methane steam reforming (MSR) as it produces COx-free H2. In this study, for the first time, structure changes of the catalyst were screened during CH4 reduction with time on stream. The aim was to optimize the pretreatment conditions through understanding the activation mechanism. Based on results from various characterization techniques, reduction of Fe2O3 by CH4 proceeds in three steps: Fe2O3→Fe3O4→FeO→Fe0. Once Fe0 is formed, it decomposes CH4 with formation of Fe3C, which is the crucial initiation step in the CMD process to initiate formation of multiwall carbon nanotubes. © 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.en
dc.description.sponsorshipThe work has been supported by Air Liquide company.en
dc.publisherWiley-Blackwellen
dc.subjectActivationen
dc.titleMethane-induced Activation Mechanism of Fused Ferric Oxide-Alumina Catalysts during Methane Decompositionen
dc.typeArticleen
dc.contributor.departmentKAUST Catalysis Center (KCC)en
dc.contributor.departmentCore Lab; King Abdullah University of Science and Technology; Thuwal 23955-6900 Saudi Arabiaen
dc.identifier.journalChemSusChemen
dc.contributor.institutionParis Saclay Research Center; Materials Sciences; AIR LIQUIDE Research & Developmenten
kaust.authorReddy Enakonda, Lingaen
kaust.authorZhou, Luen
kaust.authorSaih, Youssefen
kaust.authorOuld-Chikh, Samyen
kaust.authorLopatin, Sergeien
kaust.authorBasset, Jean-Marieen
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