Electrodeposition of metal-based nanocomposites at a liquid-liquid interface controlled via the interfacial Galvani potential difference
Electrodeposition of metal-based nanocomposites at a liquid-liquid interface controlled via the interfacial Galvani potential difference
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DOI：
10.1016/j.electacta.2008.04.025
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发表时间：
2008-09-01
影响因子：
6.6
通讯作者：
Cunnane, V. J.
中科院分区：
文献类型：
--
作者：
Lepkova, K.;Clohessy, J.;Cunnane, V. J.
本工作提出了一种新的方法来控制电沉积金属纳米粒子在液-液界面。它已被证明，共沉积在聚合物基体（纳米复合材料）的金纳米粒子的大小可以改变（间接）通过修改在水-1，2-二氯乙烷界面处建立的伽伐尼电位差。研究了两种不同单体水溶液的电化学体系，即酪胺和间苯二酚。采用不同的配分离子来设定电位差，制备出不同尺寸参数的金纳米粒子，纳米复合粒子的平均粒径随着界面电位差的增大而增大，在所研究的电位范围约为600毫伏。合成的纳米复合材料进行了分析，使用透射电子显微镜。(c)2008爱思唯尔有限公司保留所有权利。
This work presents a novel approach to the controlled electrodeposition of metal nanoparticles at a liquid-liquid interface. It has been shown that the size of gold nanoparticles co-deposited in a polymer matrix (nanocomposites) can be varied (indirectly) by modification of the Galvani potential difference established at the water-1,2-dichloroethane interface. Two electrochemical systems with different aqueous monomers, namely tyramine and resorcinol were studied. Various partitioning ions were used to set the Galvani potential difference resulting in the production of gold nanoparticles of different size parameters.The average particle size of the nanocomposites increases with increasing interfacial Galvani potential difference and the relationship between the Galvani potential difference and the size of prepared nanoparticles follows a similar trend for both of the studied systems in the covered potential range of approximately 600 mV. The synthesised nanocomposites were analysed using transmission electron microscopy. (c) 2008 Elsevier Ltd. All rights reserved.