Thermally responsive gold nanocatalysts based on a modified   poly-vinylpyrrolidone

doi:10.1016/j.molcata.2013.01.030

CORC > 北京大学 > 化学与分子工程学院

	Thermally responsive gold nanocatalysts based on a modified poly-vinylpyrrolidone
	Zhang, Jiaguang ; Yuan, Yuan ; Kilpin, Kelly J. ; Kou, Yuan ; Dyson, Paul J. ; Yan, Ning
刊名	journal of molecular catalysis a chemical
	2013
关键词	Thermo-sensitive C-1-PVP Nanoparticle Recyclable Polymers AEROBIC ALCOHOL OXIDATION IONIC LIQUIDS CATALYTIC-ACTIVITY HETEROGENEOUS CATALYSIS AQUEOUS-SOLUTIONS PHASE-TRANSITION AU-NANOPARTICLES LEWIS-ACIDS GREEN WATER
DOI	10.1016/j.molcata.2013.01.030
英文摘要	Poly-vinylpyrrolidone (PVP) stabilized nanoparticle (NP) catalysts are among the most active NP catalysts demonstrating excellent activities and stabilities in a wide and diverse range of reactions. One of the main limitations, that tend to prevent their use in industrial processes, is that they cannot be easily separated from reactions that are not amenable to biphasic separations, i.e. those involving hydrophilic reaction products. We describe a durable and recyclable Au NP catalyst system based on modified PVP that is thermo-sensitive, termed C-1-PVP. C-1-PVP stabilized Au NPs are similar in size, and exhibit similar properties, to Au NPs stabilized by PVP, but their additional thermo-sensitivity enables their facile separation from hydrophilic reaction products by mild heating, resulting in their precipitation. XRD, XPS, TEM, temperature dependant NMR, DLS and UV-vis analysis, as well as catalytic recycling and metal leaching tests were carried out to fully characterize the thermo-sensitive behavior of C-1-PVP stabilized Au NPs. The C-1-PVP stabilized Au NPs were systematically compared to Au NPs stabilized by PVP demonstrating the superiority of the new system and their potential green benefits. (C) 2013 Elsevier B.V. All rights reserved.; Chemistry, Physical; SCI(E); EI; 14; ARTICLE; 29-35; 371
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/150769]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Zhang, Jiaguang,Yuan, Yuan,Kilpin, Kelly J.,et al. Thermally responsive gold nanocatalysts based on a modified poly-vinylpyrrolidone[J]. journal of molecular catalysis a chemical,2013.
APA	Zhang, Jiaguang,Yuan, Yuan,Kilpin, Kelly J.,Kou, Yuan,Dyson, Paul J.,&Yan, Ning.(2013).Thermally responsive gold nanocatalysts based on a modified poly-vinylpyrrolidone.journal of molecular catalysis a chemical.
MLA	Zhang, Jiaguang,et al."Thermally responsive gold nanocatalysts based on a modified poly-vinylpyrrolidone".journal of molecular catalysis a chemical (2013).