Silver‐Alkylamine Complex Mediated Single Micelle toward Synthesis of Sub‐8 nm Silver Nanocrystals,Particle & Particle Systems Characterization

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Silver‐Alkylamine Complex Mediated Single Micelle toward Synthesis of Sub‐8 nm Silver Nanocrystals
Particle & Particle Systems Characterization ( IF 2.7 ) Pub Date : 2020-07-16 , DOI: 10.1002/ppsc.202000161
Zhipeng Liu ₁ , Jing Xue ₁ , Yao Wang ₁ , Fusheng Liu ₂ , Xingjian Zhou ₁ , Jixian Liu ₁ , Jianguo Tang ₁

Affiliation

Small size and narrow distribution are the key factors to improve performances of metal nanocrystals due to nanosize effect. Here, a silver‐alkylamine complex–mediated single micelle, a one‐pot approach, for controlled synthesis of monodisperse silver nanocrystals, in which oleylamine molecules play key roles serving both as complex agent and as micellar coalescence blocker is reported. After the synthesis, monodisperse products can be directly collected through subsequent single‐step separation as the particle size is finely adjusted during the synthesis. Dual‐soluble silver oleylamine complex is prepared through liquid phase complexing and is used as oil‐soluble precursor in single reverse micelle. The as‐synthesized silver nanocrystals are very uniform with a controlled size of 6.00 ± 0.29 or 8.0 ± 0.40 nm and a narrow size distribution with a standard deviation (σ) of ≈5.0%. The protocol offers a general platform for fast synthesis of noble metal nanocrystals with rationally designed size and structure.

中文翻译：

银烷基胺配合物介导的单个胶束用于合成低于8 nm的银纳米晶体

小尺寸和窄分布是由于纳米尺寸效应而提高金属纳米晶体性能的关键因素。在这里，据报道有一种由银-烷基胺络合物介导的单胶束（单锅法），用于单分散银纳米晶体的受控合成，其中油胺分子起着复合剂和胶束聚结阻滞剂的作用。合成后，由于在合成过程中对粒度进行了微调，因此可以通过后续的单步分离直接收集单分散产物。双溶性油银胺复合物是通过液相络合制备的，并在单反胶束中用作油溶性前体。合成后的银纳米晶体非常均匀，控制尺寸为6.00±0.29或8.0±0。40 nm和窄尺寸分布，标准偏差（σ）约为5.0％。该协议为以合理设计的尺寸和结构快速合成贵金属纳米晶体提供了一个通用平台。

更新日期：2020-07-16

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