Please use this identifier to cite or link to this item: http://hdl.handle.net/1783.1/67673

A comprehensive study on the effect of preparation methods for Au-core@shell silica materials in room temperature oxidative amide formation

Authors Huang, Jiale HKUST affiliated (currently or previously).
Zhang, Mingyu HKUST affiliated (currently or previously).
Wang, Jing
Hu, Xijun HKUST affiliated (currently or previously).
Luque, Rafael HKUST affiliated (currently or previously).
Lam, Frank L.Y. HKUST affiliated (currently or previously)
Issue Date 2015
Source Journal of Materials Chemistry A , v. 3, (2), January 2015, p. 789-796
Summary Core-shell silica comprising mesoporous SiO2 shell and solid SiO2 core (SiO2@mSiO(2)) was utilized as catalytic support to prepare highly active and efficient Au-SiO2@mSiO(2) catalysts for room temperature catalysis. Results showed that the mesoporous shell significantly contributed to the high surface area of SiO2@mSiO(2). Au nanocatalysts prepared by different methods (impregnation, IM and deposition-precipitation-DP) exhibited remarkably different structural properties. Au-SiO2@mSiO(2) catalysts exhibited excellent catalytic activity and high stability. Conversion could reach ca. 54% in the amidation of benzaldehyde and morpholine, with a complete selectivity to the target amide product at room temperature.
ISSN 2050-7488
Language English
Format Article
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