Functionalized Poly(ethylene glycol)-Stabilized Water-Soluble Palladium Nanoparticles: Property/Activity Relationship for the Aerobic Alcohol Oxidation in Water

被引：69

作者：

Feng, Bo ^{[1
]}

Hou, Zhenshan ^{[1
]}

Yang, Hanmin ^{[2
,3
]}

Wang, Xiangrui ^{[1
]}

Hu, Yu ^{[1
]}

Li, Huan ^{[1
]}

Qiao, Yunxiang ^{[1
]}

Zhao, Xiuge ^{[1
]}

Huang, Qingfa ^{[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, Wuhan 430074, Hubei Province, Peoples R China

[3] S Cent Univ Nationalities, Minist Educ, Wuhan 430074, Hubei Province, Peoples R China

来源：

LANGMUIR | 2010年 / 26卷 / 04期

基金：

中国国家自然科学基金;

关键词：

AMPHIPHILIC RESIN-DISPERSION; HIGHLY EFFICIENT CATALYST; POLYETHYLENE-GLYCOL; GOLD NANOPARTICLES; SELECTIVE OXIDATION; IONIC LIQUIDS; SIZE CONTROL; NANOCLUSTERS; CARBON; PD;

D O I：

10.1021/la9027755

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The preparation, characterization, and catalytic properties of water-soluble palladium nanoparticles stabilized by the functionalized-poly(ethylene glycol) as a protective ligand were demonstrated for aerobic oxidation of alcohols in aqueous phase. UV/vis spectra and X-ray photoelectron spectroscopy (XPS) proved that there was ail electronic interaction between the bidentate nitrogen ligand and palladium atoms. Transmission electron microscopy and XPS analysis showed that the particle size and surface properties of the generated palladium nanoparticles can be controlled by varying the amount of protective ligand and the kinds of reducing agents. It was found that both the size and Surface properties of palladium nanoparticles played very important roles in affecting catalytic performance. The stabilized metallic palladium nanoparticles were proven to be the active centers for benzyl alcohol oxidation in the present system, and the water-soluble Pd nanocatalysts can also be extended to the selective oxidation of various alcohols.

引用

页码：2505 / 2513

页数：9

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