Magnesium oxide supported nano-gold: A highly active catalyst for solvent-free oxidation of benzyl alcohol to benzaldehyde by TBHP

被引:67
作者
Choudhary, Vasant R. [1 ]
Dumbre, Deepa K. [1 ]
机构
[1] Natl Chem Lab, Chem Engn & Proc Dev Div, Pune 411008, Maharashtra, India
关键词
Benzyl alcohol; Benzaldehyde; Oxidation; Alkaline earth oxides; Gr.IIIa metal oxides; FREE SELECTIVE OXIDATION; T-BUTYL HYDROPEROXIDE; MOLECULAR-OXYGEN; AL-HYDROTALCITE; EPOXIDATION; STYRENE; TIO2;
D O I
10.1016/j.catcom.2009.05.020
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Nano-size gold particles deposited on MgO by the homogeneous deposition- precipitation showed very high catalytic activity with nearly 100% conversion of benzyl alcohol in a short reaction period (0.5 h) and more over showed excellent reusability in the process. Influence of the catalyst support (MgO, CaO, BaO, SrO, Al(2)O(3), Ga(2)O(3) and In(2)O(3)), method of gold deposition, Au loading and catalyst calcination temperature and also that of the reaction conditions (viz. reaction time and temperature) on the benzyl alcohol to benzaldehyde oxidation have been thoroughly investigated. (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码:1738 / 1742
页数:5
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