Selective oxidation of cyclohexane over gold nanoparticles supported on mesoporous silica prepared in the presence of thioether functionality

Wu, Pingping, Xiong, Zhigang, Loh, Kian Ping and Zhao, X. S. (2011) Selective oxidation of cyclohexane over gold nanoparticles supported on mesoporous silica prepared in the presence of thioether functionality. Catalysis Science and Technology, 1 2: 285-294. doi:10.1039/c0cy00025f


Author Wu, Pingping
Xiong, Zhigang
Loh, Kian Ping
Zhao, X. S.
Title Selective oxidation of cyclohexane over gold nanoparticles supported on mesoporous silica prepared in the presence of thioether functionality
Journal name Catalysis Science and Technology   Check publisher's open access policy
ISSN 2044-4753
2044-4761
Publication date 2011
Year available 2011
Sub-type Article (original research)
DOI 10.1039/c0cy00025f
Volume 1
Issue 2
Start page 285
End page 294
Total pages 10
Place of publication Cambridge, United Kingdom
Publisher Royal Society of Chemistry
Collection year 2012
Language eng
Formatted abstract
Gold (Au) nanoparticles (NPs) supported on mesoporous silica were prepared using a one-pot synthesis method in the presence of thioether functionality -(CH2)3-S-S-S-S-(CH2)3. Bis(triethoxysilyl) propane tetrasulfide was used as the source of thioether functionality. The complexation of thioether groups with tetrachloroauric anion (AuCl4 -) led to a good dispersion of Au NPs on mesoporous silica. Removal of the template and the thioether functional groups by calcination resulted in the reduction of the Au species, leaving behind Au NPs well dispersed on mesoporous silica. Selective oxidation of cyclohexane with molecular oxygen was used to evaluate the catalytic properties of the Au NP catalysts prepared using the present method and compared with that of a Au catalyst prepared using the hydrogen reduction method.
Keyword Liquid Phase Oxidation
Solvent Free System
Efficient Catalyst
Aerobic Oxidation
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Chemical Engineering Publications
Non HERDC
 
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