ZHAO Mei-ting1,2, ZHOU Jian-wei1,2, LI Zhen1, CHEN Jing1*, XIA Chun-Gu1
( 1. State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, China 2. Graduate University of Chinese Academy of Sciences, Beijing, China )
Abstract: Ionic liquid functionalized SiO2(SiO2-IL)was demonstrated to be an appropriate support for polyoxometalates(POMs), and three kinds of commercially available POMs were immobilized on SiO2-IL as supported ionic liquid catalysis for alcohol oxidation with H2O2. The catalysts were characterized by FTIR, XRD and XPS. PW/SiO2-IL shows the best activity and high yields (most > 93 %) of corresponding carbonyl products were obtained. In addition, the catalyst can be easily recovered by filtration and reused seven times with good yields.
Key words: Polyoxometalates; supported ionic liquid catalysis; alcohol oxidation; hydrogen peroxide
E-mail: henj@lzb.ac.cn
Journal of Molecular Catalysis, Vol. 25, Issue 2, 2011, 97~104
