Alkaline earth oxide supported nano-gold catalysts: influence of support, preparation method and calcination temperature of catalyst on its gold particle size and morphology

Choudhary, Vasant R. ; Jana, P. ; Bhargava, S. K. (2009) Alkaline earth oxide supported nano-gold catalysts: influence of support, preparation method and calcination temperature of catalyst on its gold particle size and morphology International Journal of Nanoparticles, 2 (1-6). pp. 11-19. ISSN 1753-2507

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Official URL: http://inderscience.metapress.com/index/83802132k0...

Abstract

Influence of the metal oxide support, method of gold deposition and calcination temperature on the size and morphology of the nano-size gold particles deposited on alkaline earth metal oxides has been investigated. A number of alkaline earth oxide (viz. Mgo, CaO, SrO or BaO) supported nano-gold catalysts were prepared by depositing gold on the support by the deposition precipitation (DP) and homogeneous deposition precipitation (HDP) methods. The catalysts were calcined at different temperatures (400°C-900°C). The catalysts were characterised for their Au particles (size and morphology) using TEM/HRTEM. The catalytic activity of the supported nano-gold catalysts in the epoxidation of styrene to styrene oxide by tertiary butyl hydroperoxide could be correlated well with the Au loading and/or Au particle size of the catalysts.

Item Type:Article
Source:Copyright of this article belongs to Inderscience Enterprises Limited.
Keywords:Alkaline Earth Oxides; Metal Oxides; Nanogold Catalysts; Gold Particle Size; Morphology; Styrene Epoxidation; Styrene Oxide; Gold Deposition; Calcination; Magnesium Oxide; Calcium Oxide; Barium Oxide; Nanoparticles; Nanotechnology
ID Code:10315
Deposited On:04 Nov 2010 06:03
Last Modified:28 May 2011 09:44

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