Fe catalysts for methane decomposition to produce hydrogen and carbon nano materials

Handle URI:
http://hdl.handle.net/10754/622945
Title:
Fe catalysts for methane decomposition to produce hydrogen and carbon nano materials
Authors:
Zhou, Lu; Enakonda, Linga Reddy; Harb, Moussab ( 0000-0001-5540-9792 ) ; Saih, Youssef; Aguilar Tapia, Antonio; Ould-Chikh, Samy ( 0000-0002-3486-0944 ) ; Hazemann, Jean-louis; Li, Jun; Wei, Nini; Gary, Daniel; Del-Gallo, Pascal; Basset, Jean-Marie ( 0000-0003-3166-8882 )
Abstract:
Conducting catalytic methane decomposition over Fe catalysts is a green and economic route to produce H2 without CO/CO2 contamination. Fused 65wt% and impregnated 20wt% Fe catalysts were synthesized with different additives to investigate their activity, whereas showing Fe-Al2O3 combination as the best catalyst. Al2O3 is speculated to expose more Fe00 for the selective deposition of carbon nano tubes (CNTs). A fused Fe (65wt%)-Al2O3 sample was further investigated by means of H2-TPR, in-situ XRD, HRTEM and XAS to conclude 750°C is the optimized temperature for H2 pre-reduction and reaction to obtain a high activity. Based on density functional theory (DFT) study, a reaction mechanism over Fe catalysts was proposed to explain the formation of graphite from unstable supersaturated iron carbides decomposition. A carbon deposition model was further proposed which explains the formation of different carbon nano materials.
KAUST Department:
KAUST Catalysis Center (KCC); Core Lab, King Abdullah University of Science and Technology, Thuwal 23955-6900, Kingdom of Saudi Arabia
Citation:
Zhou L, Enakonda LR, Harb M, Saih Y, Aguilar-Tapia A, et al. (2017) Fe catalysts for methane decomposition to produce hydrogen and carbon nano materials. Applied Catalysis B: Environmental 208: 44–59. Available: http://dx.doi.org/10.1016/j.apcatb.2017.02.052.
Publisher:
Elsevier BV
Journal:
Applied Catalysis B: Environmental
Issue Date:
21-Feb-2017
DOI:
10.1016/j.apcatb.2017.02.052
Type:
Article
ISSN:
0926-3373
Sponsors:
The work has been supported by Air Liquide company.
Additional Links:
http://www.sciencedirect.com/science/article/pii/S092633731730156X
Appears in Collections:
Articles; KAUST Catalysis Center (KCC)

Full metadata record

DC FieldValue Language
dc.contributor.authorZhou, Luen
dc.contributor.authorEnakonda, Linga Reddyen
dc.contributor.authorHarb, Moussaben
dc.contributor.authorSaih, Youssefen
dc.contributor.authorAguilar Tapia, Antonioen
dc.contributor.authorOuld-Chikh, Samyen
dc.contributor.authorHazemann, Jean-louisen
dc.contributor.authorLi, Junen
dc.contributor.authorWei, Ninien
dc.contributor.authorGary, Danielen
dc.contributor.authorDel-Gallo, Pascalen
dc.contributor.authorBasset, Jean-Marieen
dc.date.accessioned2017-02-28T12:11:05Z-
dc.date.available2017-02-28T12:11:05Z-
dc.date.issued2017-02-21en
dc.identifier.citationZhou L, Enakonda LR, Harb M, Saih Y, Aguilar-Tapia A, et al. (2017) Fe catalysts for methane decomposition to produce hydrogen and carbon nano materials. Applied Catalysis B: Environmental 208: 44–59. Available: http://dx.doi.org/10.1016/j.apcatb.2017.02.052.en
dc.identifier.issn0926-3373en
dc.identifier.doi10.1016/j.apcatb.2017.02.052en
dc.identifier.urihttp://hdl.handle.net/10754/622945-
dc.description.abstractConducting catalytic methane decomposition over Fe catalysts is a green and economic route to produce H2 without CO/CO2 contamination. Fused 65wt% and impregnated 20wt% Fe catalysts were synthesized with different additives to investigate their activity, whereas showing Fe-Al2O3 combination as the best catalyst. Al2O3 is speculated to expose more Fe00 for the selective deposition of carbon nano tubes (CNTs). A fused Fe (65wt%)-Al2O3 sample was further investigated by means of H2-TPR, in-situ XRD, HRTEM and XAS to conclude 750°C is the optimized temperature for H2 pre-reduction and reaction to obtain a high activity. Based on density functional theory (DFT) study, a reaction mechanism over Fe catalysts was proposed to explain the formation of graphite from unstable supersaturated iron carbides decomposition. A carbon deposition model was further proposed which explains the formation of different carbon nano materials.en
dc.description.sponsorshipThe work has been supported by Air Liquide company.en
dc.publisherElsevier BVen
dc.relation.urlhttp://www.sciencedirect.com/science/article/pii/S092633731730156Xen
dc.rightsNOTICE: this is the author’s version of a work that was accepted for publication in Applied Catalysis B: Environmental. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Applied Catalysis B: Environmental, 20 February 2017. DOI: xxxxxxxxxxxxxxxxxxxxxen
dc.subjectMethaneen
dc.subjectDecompositionen
dc.subjectHydrogenen
dc.subjectFeen
dc.subjectCarbonen
dc.titleFe catalysts for methane decomposition to produce hydrogen and carbon nano materialsen
dc.typeArticleen
dc.contributor.departmentKAUST Catalysis Center (KCC)en
dc.contributor.departmentCore Lab, King Abdullah University of Science and Technology, Thuwal 23955-6900, Kingdom of Saudi Arabiaen
dc.identifier.journalApplied Catalysis B: Environmentalen
dc.eprint.versionPost-printen
dc.contributor.institutionBM30B/FAME beamline, ESRF, F-38043 Grenoble cedex 9, Franceen
dc.contributor.institutionInstitut Néel, UPR 2940 CNRS, F-38042 Grenoble cedex 9, Franceen
dc.contributor.institutionParis Saclay Research Center, Materials Sciences, AIR LIQUIDE Research & Development, Franceen
kaust.authorZhou, Luen
kaust.authorEnakonda, Linga Reddyen
kaust.authorHarb, Moussaben
kaust.authorSaih, Youssefen
kaust.authorAguilar Tapia, Antonioen
kaust.authorOuld-Chikh, Samyen
kaust.authorLi, Junen
kaust.authorWei, Ninien
kaust.authorBasset, Jean-Marieen
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