Abutbul Ran Eitan, Golan Yuval
Department of Materials Engineering, Ben-Gurion University of the Negev, Beer-Sheva 8410501, Israel.
Ilse Katz Institute for Nanoscale Science and Technology, Ben-Gurion University of the Negev, Beer-Sheva 8410501, Israel.
Nanotechnology. 2021 Mar 5;32(10):102001. doi: 10.1088/1361-6528/abc0c7.
Colloidal synthesis of nanoparticles (NP) has advanced tremendously over the past 25 years, with an increasing number of research papers introducing nanomaterials with a variety of compositions, shapes, sizes, and phases. Although much progress has been achieved, commonly used synthetic procedures often fail to reproduce results, and the fine details of the syntheses are often disregarded. Reproducibility issues in synthesis can be ascribed to the effects of impurities, trace amounts of chemical moieties which significantly affect the reaction products. Impurities in NP synthesis are rarely reported or regularly studied, despite their impact, deleterious, or beneficial. This topical review discusses several case studies of colloidal NP synthesis where the sources and the chemistry of impurities are highlighted, and their role is examined.
在过去25年中，纳米颗粒（NP）的胶体合成取得了巨大进展，越来越多的研究论文介绍了具有各种组成、形状、尺寸和相的纳米材料。尽管已经取得了很大进展，但常用的合成方法往往无法重现结果，而且合成的细节常常被忽视。合成中的可重复性问题可归因于杂质的影响，即微量化学部分会显著影响反应产物。尽管NP合成中的杂质有影响，无论是有害的还是有益的，但很少有报道或定期研究。本专题综述讨论了几个胶体NP合成的案例研究，其中突出了杂质的来源和化学性质，并考察了它们的作用。
