V. V. Chernyavina, A. G. Berezhnaya, Ya. A. Dyshlovaya
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引用次数: 0
摘要
采用阳极电化学沉积的方法对碳电极表面进行了氧化锰纳米颗粒的修饰。利用能量色散x射线显微分析和透射电镜研究了MnO2/C材料的结构性能和元素组成。通过循环伏安法、恒流充放电测量和阻抗谱法研究了电极的电化学特性。我们比较了MnO2/C电极在0.5 M Li2SO4、Na2SO4和K2SO4溶液中的比电容。所研究的材料在硫酸钠溶液中具有最高的比电容。
Electrochemical Performance of MnO2/C Electrodes in Neutral Aqueous Electrolytes
The surface of carbon electrodes has been modified by manganese oxide nanoparticles via anodic electrochemical deposition. The structural properties and elemental composition of the resultant MnO2/C materials have been studied by energy dispersive X-ray microanalysis and transmission electron microscopy. Electrochemical characteristics of the electrodes have been investigated by cyclic voltammetry, galvanostatic charge–discharge measurements, and impedance spectroscopy. We have compared the specific capacitance of the MnO2/C electrodes in 0.5 M Li2SO4, Na2SO4, and K2SO4 solutions. The materials studied have been shown to have the highest specific capacitance in the sodium sulfate solution.
期刊介绍：
Inorganic Materials is a journal that publishes reviews and original articles devoted to chemistry, physics, and applications of various inorganic materials including high-purity substances and materials. The journal discusses phase equilibria, including P–T–X diagrams, and the fundamentals of inorganic materials science, which determines preparatory conditions for compounds of various compositions with specified deviations from stoichiometry. Inorganic Materials is a multidisciplinary journal covering all classes of inorganic materials. The journal welcomes manuscripts from all countries in the English or Russian language.
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