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

Kexin Yao, Huachun Zeng

Research output: Chapter in Book/Report/Conference proceedingConference contribution

41 Scopus citations

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.
Original languageEnglish (US)
Title of host publicationChemistry of Materials
PublisherAmerican Chemical Society (ACS)
Pages140-148
Number of pages9
DOIs
StatePublished - Dec 14 2011

Bibliographical note

KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: The authors acknowledge financial support from National University of Singapore, Singapore, and King Abdullah University of Science and Technology, Saudi Arabia.
This publication acknowledges KAUST support, but has no KAUST affiliated authors.

ASJC Scopus subject areas

  • Materials Chemistry
  • Chemical Engineering(all)
  • Chemistry(all)

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