Simultaneous chemical modification and structural transformation of Stöber silica spheres for integration of nanocatalysts

Handle URI:
http://hdl.handle.net/10754/575788
Title:
Simultaneous chemical modification and structural transformation of Stöber silica spheres for integration of nanocatalysts
Authors:
Yao, Kexin; Zeng, Huachun
Abstract:
A synthetic approach has been devised to convert conventional Stöber silica (SiO 2) spheres into a new type of porous structural platform for supporting multicomponent catalysts. With this approach, we have first prepared zinc-doped SiO 2 (Zn-SiO 2) hollow spheres, on which zinc oxide (ZnO) phase and ruthenium (Ru) nanoparticles have been deposited and assembled sequentially in solution phase. A series of complex Ru/ZnO/Zn-SiO 2 nanocatalysts has been thus been integrated onto the zinc-doped SiO 2 supports after additional thermal treatment and reduction. To test their workability under harsh reactive environments, we have further evaluated the above prepared catalysts using arene hydrogenation as model reactions. These integrated nanocatalysts have shown superior activity, high robustness, and easy recovery in the studied heterogeneous catalysis. © 2011 American Chemical Society.
Publisher:
American Chemical Society (ACS)
Journal:
Chemistry of Materials
Issue Date:
10-Jan-2012
DOI:
10.1021/cm2030119
Type:
Conference Paper
ISSN:
08974756
Sponsors:
The authors acknowledge financial support from National University of Singapore, Singapore, and King Abdullah University of Science and Technology, Saudi Arabia.
Appears in Collections:
Publications Acknowledging KAUST Support

Full metadata record

DC FieldValue Language
dc.contributor.authorYao, Kexinen
dc.contributor.authorZeng, Huachunen
dc.date.accessioned2015-08-24T09:26:13Zen
dc.date.available2015-08-24T09:26:13Zen
dc.date.issued2012-01-10en
dc.identifier.issn08974756en
dc.identifier.doi10.1021/cm2030119en
dc.identifier.urihttp://hdl.handle.net/10754/575788en
dc.description.abstractA synthetic approach has been devised to convert conventional Stöber silica (SiO 2) spheres into a new type of porous structural platform for supporting multicomponent catalysts. With this approach, we have first prepared zinc-doped SiO 2 (Zn-SiO 2) hollow spheres, on which zinc oxide (ZnO) phase and ruthenium (Ru) nanoparticles have been deposited and assembled sequentially in solution phase. A series of complex Ru/ZnO/Zn-SiO 2 nanocatalysts has been thus been integrated onto the zinc-doped SiO 2 supports after additional thermal treatment and reduction. To test their workability under harsh reactive environments, we have further evaluated the above prepared catalysts using arene hydrogenation as model reactions. These integrated nanocatalysts have shown superior activity, high robustness, and easy recovery in the studied heterogeneous catalysis. © 2011 American Chemical Society.en
dc.description.sponsorshipThe authors acknowledge financial support from National University of Singapore, Singapore, and King Abdullah University of Science and Technology, Saudi Arabia.en
dc.publisherAmerican Chemical Society (ACS)en
dc.subjectarene hydrogenationen
dc.subjecthollow spheresen
dc.subjectmesoporous silicaen
dc.subjectnanocompositesen
dc.subjectRu nanocatalystsen
dc.subjectStöber silicaen
dc.titleSimultaneous chemical modification and structural transformation of Stöber silica spheres for integration of nanocatalystsen
dc.typeConference Paperen
dc.identifier.journalChemistry of Materialsen
dc.contributor.institutionInstitute of Materials Research and Engineering (IMRE), 3 Research Link, Singapore 117602, Singaporeen
kaust.authorYao, Kexinen
kaust.authorZeng, Huachunen
kaust.grant.fundedcenterKAUST-NUS GCR Programen
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