文献类型：期刊文献

英文题名：Functionalized Poly(ethylene glycol)-Stabilized Palladium Nanoparticles as an Efficient Catalyst for Aerobic Oxidation of Alcohols in Supercritical Carbon Dioxide/Poly(ethylene glycol) Biphasic Solvent System

作者：Wang, Xiangrui[1];Yang, Hanmin[2];Feng, Bo[1];Hou, Zhenshan[1];Hu, Yu[1];Qiao, Yunxiang[1];Li, Huan[1];Zhao, Xiuge[1]

机构：[1]E China Univ Sci & Technol, Res Inst Ind Catalysis, Key Lab Adv Mat, Shanghai 200237, Peoples R China;[2]S Cent Univ Nationalities, Key Lab Catalysis & Mat Sci, State Ethn Affairs Commiss & Minist Educ, Wuhan 430074, Hubei Province, Peoples R China

年份：2009

卷号：132

期号：1-2

起止页码：34

外文期刊名：CATALYSIS LETTERS

收录：;EI(收录号：20093912339954);WOS:【SCI-EXPANDED(收录号:WOS:000269883400006)】；

基金：The authors are grateful for the support from the National Natural Science Foundation of China (no. 20773037), ECUST (no. YJ0142136), the Commission of Science and Technology of Shanghai Municipality (no. 07PJ14023), China, and Key Laboratory of Catalysis and Materials Science of the State Ethnic Affairs Commission & Ministry of Education, Hubei Province, SouthCentral University for Nationalities (no. CHCL08001), PR China. The authors would also like to express their thanks to Prof Walter Leitner's helpful suggestion and Dr. Nils Theyssen's assistance.

语种：英文

外文关键词：Poly(ethylene glycol); Supercritical carbon dioxide; Alcohol oxidation; Palladium nanoparticles

摘要：The functionalized Poly(ethylene glycol) (PEG)-stabilized Pd(0) nanoparticles have been utilized to selectively oxidize alcohols to the corresponding aldehydes or ketones in supercritical carbon dioxide (scCO(2))/PEG (PEG-2000) biphasic system. It was demonstrated that the Pd(0) nanocatalyst was more active and selective, in comparison with the commercially available Pd/C catalyst, PVP-stabilized Pd nanocatalyst and Pd(0) catalyst without stabilization. The effects of CO2 pressure, reaction time and temperature on activity and selectivity were also further investigated in detail. The scCO(2)/PEG biphasic system was proved to be not only cheap and clean, but also recyclable for the aerobic oxidation of alcohols.