Show simple item record

dc.contributor.authorDe, Sudipta
dc.contributor.authorAguilar-Tapia, Antonio
dc.contributor.authorOuld-Chikh, Samy
dc.contributor.authorZitolo, Andrea
dc.contributor.authorHazemann, Jean-Louis
dc.contributor.authorShterk, Genrikh
dc.contributor.authorRamirez, Adrian
dc.contributor.authorGascon, Jorge
dc.date.accessioned2022-04-19T11:17:08Z
dc.date.available2022-04-19T11:17:08Z
dc.date.issued2022-03-25
dc.identifier.citationDe, S., Aguilar-Tapia, A., Ould-Chikh, S., Zitolo, A., Hazemann, J.-L., Shterk, G., Ramirez, A., & Gascon, J. (2022). Pure silica-supported transition metal catalysts for the non-oxidative dehydrogenation of ethane: confinement effects on the stability. Journal of Materials Chemistry A. https://doi.org/10.1039/d2ta00223j
dc.identifier.issn2050-7488
dc.identifier.issn2050-7496
dc.identifier.doi10.1039/d2ta00223j
dc.identifier.urihttp://hdl.handle.net/10754/676317
dc.description.abstractDesigning robust catalysts for high-temperature applications has always been a critical task for chemical industries. As an example, the non-oxidative dehydrogenation of alkanes is an important chemical process that requires thermally stable metal catalysts with high resistance to metal sintering. The main obstacle is to maintain the high dispersion of the active metal centres under reaction and regeneration conditions. In an attempt to overcome this issue, here we use all-silica zeolite as a support to make nanometric and single-site metal catalysts with enhanced stability for the non-oxidative dehydrogenation of ethane. Preliminary screening of different metal catalysts suggests that Co has the highest intrinsic activity while Cr and V are highly stable against sintering and display a moderate activity. The high stability of Cr and V could be attributed to their high Gibbs energy of reduction under reaction conditions. Operando X-ray absorption spectroscopy revealed that Cr based catalysts remain as single-site monomeric species during the reaction, making it possible to increase the loading and therefore productivity. In the case of Co, we established the optimum parameters to achieve the highest activity by evaluating the effects of support, metal loading, promoter, and synthesis process
dc.publisherRoyal Society of Chemistry (RSC)
dc.relation.urlhttp://xlink.rsc.org/?DOI=D2TA00223J
dc.rightsArchived with thanks to Journal of Materials Chemistry A under a Creative Commons license, details at: http://creativecommons.org/licenses/by-nc/3.0/
dc.rights.urihttp://creativecommons.org/licenses/by-nc/3.0/
dc.titlePure silica-supported transition metal catalysts for the non-oxidative dehydrogenation of ethane: confinement effects on the stability
dc.typeArticle
dc.contributor.departmentKAUST Catalysis Center (KCC)
dc.contributor.departmentChemical Science
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.contributor.departmentChemical Engineering Program
dc.identifier.journalJournal of Materials Chemistry A
dc.eprint.versionPublisher's Version/PDF
dc.contributor.institutionInstitut Neel, UPR 2940 CNRS – Université Grenoble Alpes, F-38000 Grenoble, France
dc.contributor.institutionSynchrotron SOLEIL, L'Orme des Merisiers, 91192 Gif-sur-Yvette, France
kaust.personDe, Sudipta
kaust.personOuld-Chikh, Samy
kaust.personShterk, Genrikh
kaust.personRamirez, Adrian
kaust.personGascon, Jorge
refterms.dateFOA2022-04-19T11:18:23Z


Files in this item

Thumbnail
Name:
d2ta00223j.pdf
Size:
1.349Mb
Format:
PDF
Description:
Published Version
Thumbnail
Name:
d2ta00223j1.pdf
Size:
6.226Mb
Format:
PDF
Description:
Supplementary material
Thumbnail
Name:
Capture.JPG
Size:
25.40Kb
Format:
JPEG image
Description:
Graphical abstract

This item appears in the following Collection(s)

Show simple item record

Archived with thanks to Journal of Materials Chemistry A under a Creative Commons license, details at: http://creativecommons.org/licenses/by-nc/3.0/
Except where otherwise noted, this item's license is described as Archived with thanks to Journal of Materials Chemistry A under a Creative Commons license, details at: http://creativecommons.org/licenses/by-nc/3.0/