研究成果汇总

基于苯胺的氧化还原特性简易制备网络状金纳米线

2010-10-14 范旭 点击:[]

金属纳米线被广泛应用于电子传导特性,电子器件以及其他领域的研究。本文中我们报道了一种简单有效的方法制备网络状的金纳米线,这种方法主要利用了苯胺在不同pH值下不同的氧化还原特性。此外,我们也研究了其他反应条件对生成的金纳米结构的影响,并提出这种网络状金纳米线可能的形成机制。

Xu Fan , Lianke Liu , Zhirui Guo , Ning Gu , Lina ,Facile synthesis of networked gold nanowires based on the redox characters of aniline, Materials Letters 64 (2010) 2652–2654

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Fig. 1. (a) TEM image, (b) the corresponding SAED pattern, (c) XRD pattern, (d) UV–vis–NIR absorption spectra, and (e) HRTEM image of the gold nanowires obtained at 80 °C, pH 7.0. (f) TEM image of the paramecium-like gold nanoaggregates obtained at 80 °C, pH 5.6. The inset of (f) is a magnified image of the paramecium-like gold nanoaggregates, bar 50 nm.

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Fig. 2. Schematic of the possible formation process of the networked gold nanowires.