文献类型：期刊文献

英文题名：Synthesis of hydrogen peroxide from H₂ and O₂ in water and ethanol catalyzed by nanoclustered Pd⁰ on silica: strong selectivity enhancement exerted by the addition of ionic liquids

作者：Li, Ping[1];He, Chongheng[1];Campestrini, Sandro[2];Corain, Benedetto[2];Yuan, Weikang[1];Han, Yi-Fan[1]

机构：[1]E China Univ Sci & Technol, State Key Lab Chem Engn, Shanghai 200237, Peoples R China;[2]Dipartimento Sci Chim, I-35131 Padua, Italy

年份：2010

卷号：12

期号：9

起止页码：2170

外文期刊名：PHYSICAL CHEMISTRY CHEMICAL PHYSICS

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000274622900015)】；

基金：The authors are grateful to support from the Chinese Education Ministry 111 project (B08021) and Creative Team Development project (IRT0721), International Cooperation Project of the Chinese Ministry of Science and Technology (2007DFC61690), and the Opening Project of the State Key Laboratory of Chemical Engineering (SKL-ChE-08C05).

语种：英文

摘要：Hydrogen peroxide (H2O2) synthesis directly from dioxygen and dihydrogen was carried out using a continuous flow reactor with a Pd catalyst. The effects of ionic liquids on the selectivity to H2O2 were studied on a Pd/SiO2 catalyst. It was found that the ionic liquid [BMIM][BF4] in water or ethanol is quite beneficial to the selectivity to H2O2. Ca. 95% selectivity after 1 h in both solvents and a relatively high selectivity i.e. (about 50% in ethanol and 40% in water) after 5 h reaction have been achieved. On the other hand, a plausible mechanism for the effects of ion liquids on this reaction system was suggested on the basis of the preliminary results.