Preparation of halloysite nanotube-supported gold nanocomposite for solvent-free oxidation of benzyl alcohol
1 Department of Energy and Chemical Engineering, Dongguan University of Technology, 1st, University Road, Songshan Lake District, Dongguan 523808, China
2 Dongguan Key Laboratory of Distributed Energy System, Dongguan University of Technology, 1st, University Road, Songshan Lake District, Dongguan 523808, China
Nanoscale Research Letters 2014, 9:282 doi:10.1186/1556-276X-9-282Published: 2 June 2014
Gold nanoparticles supported on halloysite nanotubes (Au/HNTs) were prepared by a homogeneous deposition-precipitation method. The specific characteristics of the catalyst were characterized in detail, in relation to their performance for solvent-free oxidation of benzyl alcohol. The particular structure of the catalyst resulted in high catalytic activity and stability compared with other supported gold catalysts. The enhanced catalytic activity of the Au/HNTs catalyst was mainly attributed to the presence of a higher amount of oxidized gold species and the tubular structure of the HNTs.