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

被引：13
|
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
来源：
CATALYSIS LETTERS | 2009年 / 132卷 / 1-2期
基金：
中国国家自然科学基金;
关键词：
Poly(ethylene glycol); Supercritical carbon dioxide; Alcohol oxidation; Palladium nanoparticles; MOLECULAR-OXYGEN; SELECTIVE OXIDATION; DIOXIDE; GREEN; SILICA; FLUIDS; MEDIA; PEG; CO2; PD;
D O I：
10.1007/s10562-009-0038-4
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：
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.
引用
收藏
页码：34 / 40
页数：7
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