Electrodeposition of gold nanoparticles from ionic liquid microemulsion
作者： Chaopeng Fu , Haihui Zhou , Ding Xie , Lu Sun , Yifan Yin
DOI: 10.1007/S00396-010-2238-2
关键词: Cyclic voltammetry 、 Chemistry 、 Microemulsion 、 Colloidal gold 、 Inorganic chemistry 、 Rotating disk electrode 、 Dielectric spectroscopy 、 Aqueous solution 、 Electrochemistry 、 Electrocatalyst 、 Physical and Theoretical Chemistry 、 Colloid and Surface Chemistry 、 Materials Chemistry 、 Polymers and Plastics
摘要: Gold nanoparticles were electrodeposited directly for the first time from a new electrolyte system: water-in-ionic liquid (W/IL) microemulsion. The electrochemical behavior of Au(Ш) in W/IL microemulsion was investigated. cyclic voltammetry (CV) result shows pair redox peak. effect precursor apparent concentration on reduction peak current density is similar to that homogeneous solution such as aqueous solution. scan rate different Linear-sweep voltammograms rotating disk electrode suggests kinetically limited and not transport limited. And also activation energy reaction calculated be 26.7 KJ mol−1. gold electrodeposits characterized by scanning electron microscopy X-ray diffraction. It found are face-centered cubic nanosized. Furthermore, potential mechanism proposed. In addition, properties researched through electro-oxidation glycerol. CV impedance spectroscopy studies demonstrate have much higher electro-catalytic activities than bare glycerol oxidation.
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