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

Kexin Yao; Huachun Zeng

doi:10.1021/cm2030119

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

Kexin Yao, Huachun Zeng

Physical Sciences and Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

42 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 language	English (US)
Title of host publication	Chemistry of Materials
Publisher	American Chemical Society (ACS)
Pages	140-148
Number of pages	9
DOIs	https://doi.org/10.1021/cm2030119
State	Published - 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
General Chemical Engineering
General Chemistry

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10.1021/cm2030119

Cite this

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title = "Simultaneous chemical modification and structural transformation of St{\"o}ber silica spheres for integration of nanocatalysts",

abstract = "A synthetic approach has been devised to convert conventional St{\"o}ber 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. {\textcopyright} 2011 American Chemical Society.",

author = "Kexin Yao and Huachun Zeng",

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.",

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doi = "10.1021/cm2030119",

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AU - Yao, Kexin

AU - Zeng, Huachun

N1 - 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.

PY - 2011/12/14

Y1 - 2011/12/14

N2 - 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.

AB - 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.

UR - http://hdl.handle.net/10754/575788

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DO - 10.1021/cm2030119

M3 - Conference contribution

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BT - Chemistry of Materials

PB - American Chemical Society (ACS)

ER -

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

Abstract

Bibliographical note

ASJC Scopus subject areas

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