The University Chemical Laboratories, Lensfield Road, Cambridge CB2 1EW, UK.
Dalton Trans. 2010 Jul 28;39(28):6496-502. doi: 10.1039/c0dt00134a. Epub 2010 Jun 21.
A modified polyol-based reduction method in ethylene glycol that incorporates poly(N-vinylpyrrolidone) (PVP, M(av) = 10,000; 40,000; 55,000) as polymeric anti-agglomerant alongside a reducing additive (N(2)H(4) x H(2)O, NaBH(4), NaH(2)PO(2) x H(2)O) has been employed to investigate the influence of synthetic parameters on the purity, morphology and stability of an array of polymer-coated copper nanoparticles. While data point to ethylene glycol being capable of acting as a reductant in this system, the use of NaH(2)PO(2) x H(2)O as co-reductant in tandem with the presence of PVP (M(av) 40,000) has rendered nanoparticles with a mean size distribution of 9.6 +/- 1.0 nm that exhibit stability towards oxidation for several months. These data allow us to probe fundamentally how oxidatively stable nano-copper might be achieved.
一种改良的聚乙二醇中的多元醇还原法，在其中加入聚（N-乙烯基吡咯烷酮）（PVP，M（av）= 10000；40000；55000）作为聚合物防团聚剂，以及一种还原添加剂（N（2）H（4）x H（2）O、NaBH（4）、NaH（2）PO（2）x H（2）O），用于研究合成参数对一系列聚合物包覆铜纳米粒子的纯度、形态和稳定性的影响。虽然数据表明乙二醇在该体系中能够充当还原剂，但使用 NaH（2）PO（2）x H（2）O 作为共还原剂，与 PVP（M（av）40000）的存在相结合，使得纳米粒子的平均尺寸分布为 9.6±1.0nm，并且在几个月内对氧化表现出稳定性。这些数据使我们能够深入探究如何实现纳米铜的氧化稳定性。
