Electrocatalytical properties presented by Cu/Ni alloy modified electrodes toward the oxidation of glucose
Electrocatalytical properties presented by Cu/Ni alloy modified electrodes toward the oxidation of glucose
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DOI：
10.1007/s10008-013-1998-2
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发表时间：
2013-01
影响因子：
2.5
通讯作者：
Franciele Wolfart;A. Maciel;N. Nagata;M. Vidotti
中科院分区：
文献类型：
--
作者：
Franciele Wolfart;A. Maciel;N. Nagata;M. Vidotti
本文涉及镍和铜在电极表面沉积形成的金属合金，旨在开发电催化系统。这种合金是通过简单直接的电化学处理，直接还原不同比例的 Ni2+ 和 Cu2+ 硫酸盐在铂电极上形成的。沉积后，通过循环伏安图在碱性溶液中完成向电催化氧化物形式的转化。研究了沉积时间和合成溶液中铜和镍的比例等实验参数对葡萄糖的催化氧化作用。通过电化学实验、红外和拉曼光谱以及X射线衍射对材料进行了表征，表明该材料不是镍和铜氧化物的简单混合物。修饰的电极表现出显着的电催化性能，表明在传感器和燃料电池开发中的有趣应用。
This paper concerns the deposition of metal alloys formed by nickel and copper on electrode surface aiming at the development of electrocatalytic systems. Such alloys were formed on platinum electrodes by direct reduction of Ni2+and Cu2+sulfate salts in different proportions in a simple and straightforward electrochemical treatment. After the deposition, the conversion to the electrocatalytic oxide form was done in alkaline solutions by cyclic voltammograms. The experimental parameters, such as deposition time and the proportion of copper and nickel in the synthetic solution, were investigated toward the catalytic oxidation of glucose. The materials were characterized by electrochemical experiments, infrared and Raman spectroscopies, and X-ray diffraction, showing that the material is not a simple mixture of nickel and copper oxides. The modified electrodes showed remarkable electrocatalytic properties, indicating an interesting application in the sensor and fuel cell development.