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

研究成果: 雜誌貢獻文章同行評審

164 引文 斯高帕斯(Scopus)

摘要

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.

原文英語
頁(從 - 到)789-794
頁數6
期刊Journal of Materials Chemistry
21
發行號3
DOIs
出版狀態已發佈 - 1月 21 2011
對外發佈

ASJC Scopus subject areas

  • 材料化學
  • 化學 (全部)

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