文献类型：期刊文献

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

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

年份：2010

卷号：26

期号：4

起止页码：2505

外文期刊名：LANGMUIR

收录：;EI(收录号：20100812731470);WOS:【SCI-EXPANDED(收录号:WOS:000274342200050)】；

基金：We 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 and Ministry of Education, Hubei Province, South-Central University for Nationalities (No. CHCL08001), China. The authors would also like to express their thanks to Prof. Walter Leitner's helpful suggestions and Dr. Nils Theyssen's assistance.

语种：英文

外文关键词：Ethylene glycol - X ray photoelectron spectroscopy - Polyols - High resolution transmission electron microscopy - Ligands - Nanoparticles - Reducing agents - Particle size analysis - Palladium - Particle size - Catalytic oxidation - Nanocatalysts - Surface properties

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.