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Metal Nano Networks by Potential-Controlled In Situ Assembling of Gold/Silver Nanoparticles.
ChemistryOpen ( IF 2.3 ) Pub Date : 2019-10-10 , DOI: 10.1002/open.201900231
J Michael Köhler 1 , Jonas Kluitmann 2 , Andrea Knauer 2
Affiliation  

Non‐spherical Au/Ag nanoparticles can be generated by chemical reduction of silver ions in the presence of preformed gold nanoparticles. The process of particle formation can be controlled by concentrations of ligands and reducing agent. The formation of ellipsoidal, nanorod‐ and peanut‐shaped nanoparticles as well as of more complex fractal nanoassemblies can be explained by changes in particle surface state, electrochemical potential formation and particle‐internal self‐polarization effects. It is possible to create highly fractal nanoassemblies with sizes between the mid‐nanometer and the lower micrometer range. The assemblies are marked by high optical absorption and complex nano‐networks of very high surface‐to‐volume ratios and a granular base structure.

中文翻译:

通过金/银纳米粒子的电势可控原位组装形成金属纳米网络。

在预先形成的金纳米粒子的存在下,通过化学还原银离子可以生成非球形的Au / Ag纳米粒子。颗粒形成的过程可以通过配体和还原剂的浓度来控制。椭圆形,纳米棒形和花生形的纳米颗粒以及更复杂的分形纳米组件的形成可以通过颗粒表面状态的变化,电化学势的形成以及颗粒内部的自极化作用来解释。可以创建高度分形的纳米组件,其尺寸介于中纳米和较低的微米范围之间。组件的特点是具有高的光吸收率和复杂的纳米网络,具有很高的表面体积比和颗粒状基础结构。
更新日期:2019-10-10
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