Purification and separation of ultra-small metal nanoclusters.,Advances in Colloid and Interface Science

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Purification and separation of ultra-small metal nanoclusters.
Advances in Colloid and Interface Science ( IF 15.9 ) Pub Date : 2019-12-27 , DOI: 10.1016/j.cis.2019.102090
Dan Li ₁ , Beena Kumari ₂ , Xianzhi Zhang ₃ , Cuiping Wang ₄ , Xifan Mei ₅ , Vincent M Rotello ₃

Affiliation

Metal nanoclusters (NCs) are ultra-small nanoparticles intermediate in size between small molecule complexes and nanoparticles. NCs with tunable surface functionality feature unique physical and chemical properties, however these properties are frequently compromised by the presence of undesired components such as excess ligands or mixtures of NCs. In a typical synthesis process, different NCs can be formed with varying numbers of metal atoms and/or ligands, and even NCs with the same number of metal atoms and ligands can have different spatial structures. The separation of pure NCs is important because different species have distinct optical and catalytic behavior. However, NCs can be difficult to purify or separate for a range of reasons. In this review, we discuss established and emerging approaches for NC purification/separation, with a focus on choosing the appropriate method depending on NC and application.

中文翻译：

超小金属纳米团簇的纯化和分离。

金属纳米簇（NC）是尺寸介于小分子复合物和纳米颗粒之间的超小纳米颗粒。具有可调表面功能的NC具有独特的物理和化学性质，但是这些性质经常因存在不需要的成分（例如过量的配体或NC的混合物）而受到损害。在典型的合成过程中，不同数量的金属原子和/或配体可以形成不同的NC，甚至具有相同数量的金属原子和配体的NC也可以具有不同的空间结构。纯NC 的分离很重要，因为不同的物种具有不同的光学和催化行为。然而，由于多种原因，NC 可能难以纯化或分离。在这篇综述中，我们讨论了已建立的和新兴的 NC 纯化/分离方法，重点是根据 NC 和应用选择适当的方法。

更新日期：2019-12-27

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