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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 1094Gold Catalysts on TiO2-Modified Silica Gel for the...

Gold Catalysts on TiO₂-Modified Silica Gel for the Selective Cyclopentane Oxidation to Cyclopentanone

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Abstract:

Amorphous silica gel was modified by titania via an impregnation-surface hydrolysis approach and used as the support for preparing gold catalysts through an direct anion exchange method. These supported gold catalysts were characterized by XRD and TEM, and applied for the catalytic cyclopentane oxidation to cyclopentanone using oxygen in the absence of any solvent and initiator. The catalyst with a loading of 0.1wt.% gold and 10wt.% TiO₂ exhibited 7.2% cyclopentane conversion and 77.4% selectivities (including cyclopentanone and cyclopentanol) under the reaction conditions of 145°C, 2.0 MPa and 3 h. All the gold catalysts studied are very active in selective cyclopentane oxidation, and their high activities can be attributed to well dispersion and nanometer effect of gold particles within the catalysts.

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Periodical:

Advanced Materials Research (Volume 1094)

Pages:

76-81

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.1094.76

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Online since:

March 2015

Authors:

Li Xin Xu*, Chuan Feng Sun, Jie Li, Guang Yuan Chen

Keywords:

Cyclopentane Oxidation, Cyclopentanone, Gold Catalyst, Silica Gel

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© 2015 Trans Tech Publications Ltd. All Rights Reserved

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