Catalytic nano-rattle of Au@hollow silica

Towards a poison-resistant nanocatalyst

Si Han Wu, Chih Ta Tseng, Yu Shen Lin, Cheng Han Lin, Yann Hung, Chung Yuan Mou

Research output: Contribution to journalArticle

142 Citations (Scopus)

Abstract

In this work, size-controlled gold nanocatalysts (2.8 to 4.5 nm) inside monodisperse hollow silica nanospheres, Au@HSNs, have been prepared by using a water-in-oil microemulsion as a template. The size of gold nanocatalysts can be easily controlled based on the gold precursor and the chloroauric acid concentration used during synthesis. These Au@HSN nanocatalysts were characterized by transmission electron microscopy, scanning electron microscopy, N 2 adsorption-desorption isotherms, powder X-ray diffraction, and UV-vis spectrometer. Furthermore, we demonstrate their catalytic capability with respect to the 4-nitrophenol reduction reaction in the absence and presence of a thiol compound, meso-2,3-dimercaptosuccinic acid. The results show that the Au@HSNs display highly catalytic activity and resistance to other strongly adsorbing molecules in reaction solutions.

Original languageEnglish
Pages (from-to)789-794
Number of pages6
JournalJournal of Materials Chemistry
Volume21
Issue number3
DOIs
Publication statusPublished - Jan 21 2011
Externally publishedYes

Fingerprint

Poisons
Silicon Dioxide
Gold
Silica
Ultraviolet spectrometers
Succimer
Acids
Nanospheres
Microemulsions
Sulfhydryl Compounds
X ray powder diffraction
Isotherms
Catalyst activity
Desorption
Oils
Transmission electron microscopy
Adsorption
Scanning electron microscopy
Molecules
Water

ASJC Scopus subject areas

  • Materials Chemistry
  • Chemistry(all)

Cite this

Catalytic nano-rattle of Au@hollow silica : Towards a poison-resistant nanocatalyst. / Wu, Si Han; Tseng, Chih Ta; Lin, Yu Shen; Lin, Cheng Han; Hung, Yann; Mou, Chung Yuan.

In: Journal of Materials Chemistry, Vol. 21, No. 3, 21.01.2011, p. 789-794.

Research output: Contribution to journalArticle

Wu, Si Han ; Tseng, Chih Ta ; Lin, Yu Shen ; Lin, Cheng Han ; Hung, Yann ; Mou, Chung Yuan. / Catalytic nano-rattle of Au@hollow silica : Towards a poison-resistant nanocatalyst. In: Journal of Materials Chemistry. 2011 ; Vol. 21, No. 3. pp. 789-794.
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