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Flash light synthesis of noble metal nanoparticles for electrochemical applications: silver, gold, and their alloys
Journal of Solid State Electrochemistry ( IF 2.5 ) Pub Date : 2020-02-13 , DOI: 10.1007/s10008-020-04521-5
Victor Costa Bassetto , Wanderson Oliveira Silva , Carlos M. Pereira , Hubert H. Girault

Abstract

The synthesis of noble metal nanoparticles (i.e., silver and gold) for electrochemical applications has been widely studied using mainly wet synthesis chemical methods or electrochemical deposition methods. In this work, we propose a single-step flash photochemical method for synthesizing noble metal nanoparticles (i.e., silver, gold, and Au:Ag) in solution for electrochemical applications. The method is based on the intense pulsed radiation emitted from a xenon flashlamp, which induce the reduction of metal cations in solution to form metallic nanoparticles. The present method is based on the selective light absorption of the metal precursor salts combined with the decomposition of polyvinylpyrrolidone added to the solution. This approach can be termed as flash light synthesis.



中文翻译:

闪光合成用于电化学应用的贵金属纳米颗粒:银,金及其合金

摘要

已经主要使用湿法合成化学方法或电化学沉积方法对用于电化学应用的贵金属纳米粒子(即,银和金)的合成进行了广泛的研究。在这项工作中,我们提出了一种用于合成电化学应用溶液中的贵金属纳米粒子(即银,金和Au:Ag)的单步快速光化学方法。该方法基于氙闪光灯发出的强脉冲辐射,该辐射会诱导溶液中金属阳离子的还原,从而形成金属纳米颗粒。本方法基于金属前体盐的选择性光吸收以及加入溶液中的聚乙烯吡咯烷酮的分解。这种方法可以称为闪光灯合成。

更新日期:2020-02-14
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