Surfactant free solution synthesis of metallic nanoclusters toward efficient use of the surfaces and their application in catalysis

金属纳米粒子(纳米簇)合成过程中稳定剂的选择对控制纳米粒子的形状、尺寸和分散稳定性具有重要意义。然而，纳米颗粒表面的活性中心可能会被所使用的稳定剂所阻挡，导致表面的利用效率较低。本文介绍了无表面活性剂溶液法制备金纳米团簇的方法及其在催化剂中的应用。无表面活性剂合成并不意味着真正的裸金属纳米颗粒的合成，而是指在没有额外的稳定剂如硫醇和膦化合物、表面活性剂和聚合物的情况下制备金属纳米颗粒的方法。这些金属纳米粒子由N，N-二甲基甲酰胺(DMF)等溶剂稳定。这项研究的结果发表在《纳米技术评论》(DOI：10.1515/ntrev-2012-0079)上的一篇综述文章中。

The choice of stabilizer during metal nanoparticle (nanocluster) synthesis is important for controlling the shape, size, and dispersion stability of the nanoparticles. However, the active sites on the nanoparticles surfaces may be blocked by the stabilizing agents used, resulting in a less-than-effective utilization of the surfaces. In this study, surfactant-free solution-based methods of synthesizing gold nanoclusters are described, along with the applications of such nanoparticles in catalysis.Surfactant-free synthesis does not imply truly bare metal nanoparticles synthesis but implies one where the metal nanoparticles are prepared in the absence of additional stabilizing agents such as thiolate and phosphine compounds, surfactants, and polymers. These metal nanoparticles are stabilized by the solvents used such as N,N-dimethylformamide (DMF). The results developed in this study are published in a review article in Nanotechnology Reviews (DOI: 10.1515/ntrev-2012-0079).