| 石墨烯-氧化钌纳米复合材料的水热法合成及电化学电容性能 | |
| Graphene-RuO2 Nanocomposites: Hydrothermal Synthesis and Electrochemical Capacitance Properties | |
| 摘要: 通过水热法制备了石墨烯-氧化钌(G-RuO2)纳米复合材料。对样品进行了X射线衍射(XRD)，扫描电子显微镜(SEM)，透射电子显微镜(TEM)和能量色散谱(EDS)表征。SEM结果表明氧化钌粒子均匀地分散在石墨烯层片上。TEM结果显示氧化钌纳米粒子的平均粒径约为3 nm。对样品进行了循环伏安和充放电性能测试，结果表明在1 A·g-1的电流密度下，样品在H2SO4(1 mol·L-1)溶液中具有219.7 F·g-1的比电容。 | |
| 关键词: 氧化钌 石墨烯 纳米复合材料 电化学电容器 水热 | |
| 基金项目: | |
| Abstract: Graphene-ruthenium oxide (G-RuO2) nanocomposite was prepared via a facile hydrothermal method. The sample was characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and energy dispersive X-ray Spectroscopy(EDS). SEM result reveals homogeneous distribution of RuO2 particles on the layers of graphene sheets. TEM images demonstrate that the average size of RuO2 particles is around 3 nm. The electrochemical properties of the sample were examined by cyclic voltammetry (CV) and galvanostatic charge-discharge (GC). The specific capacitance value of the sample is about 219.7 F·g-1 at the current density of 1 A·g-1 in 1 mol·L-1 H2SO4. | |
| Keywords: ruthenium oxide graphene nanocomposites electrochemical capacitor hydrothermal method | |
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| 沈辰飞,郑明波,薛露平,李念武,吕洪岭,张松涛,曹洁明.石墨烯-氧化钌纳米复合材料的水热法合成及电化学电容性能[J].无机化学学报,2011,27(3):585-589. | |
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