Mass Production of Monodisperse Gold Nanoparticles in Polyaniline Matrix Electrochemical/Electroless Deposition
Mass Production of Monodisperse Gold Nanoparticles in Polyaniline Matrix Electrochemical/Electroless Deposition
复制标题
聚苯胺基体电化学/化学沉积中单分散金纳米颗粒的批量生产
DOI：
10.1149/2.071207jes
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发表时间：
2012
期刊：
影响因子：
--
通讯作者：
椎木 弘
中科院分区：
文献类型：
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作者：
K. Kajitani;T. Koshiyama;A. Hori;R. Ohtani;A. Mishima;K. Torikai;M. Ebine;T. Oishi;M. Takata;S. Kitagawa;M. Ohba;若尾摂;椎木 弘
提出了一种大规模制备单分散金纳米团簇和纳米颗粒的合成方法。在两相有机物/水体系中，采用一步法制备了由金纳米粒子-有机组分-金纳米粒子重复排列的聚集体组成的纳米树莓状结构.在两相混合物中，苯胺单体还原Au 3+提供纳米团簇以及控制团簇生长成纳米颗粒的聚苯胺胶体。可以改变反应参数（反应物的比率、时间和温度）以控制聚苯胺基质中的纳米团簇和纳米颗粒的尺寸为0.73 nm至5.5 nm。最后，电化学降解的聚苯胺矩阵提供孤立的单分散纳米团簇和纳米粒子。
A synthetic route for mass production of monodisperse gold nanoclusters and nanoparticles is presented. A nanometer-sized raspberry-like architecture, consisting of an aggregation of repeated sequences of a three dimensional gold nanoparticle (AuNP)-organic component-AuNP arrangement, has been prepared with a single-step procedure in a biphasic organic/water system. In the biphasic mixture, reduction of Au 3+ by aniline monomers affords nanoclusters as well as a polyaniline colloid that controls the growth of the clusters into nanoparticles. The reaction parameters (ratio of reactants, time, and temperature) can be varied to control the size of the nanoclusters and nanoparticles from 0.73 nm to 5.5 nm in the polyaniline matrix. Finally, electrochemical degradation of the polyaniline matrix affords isolated monodisperse nanoclusters and nanoparticles.