CAJ | 학술논문

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.
통과수열법제비료석묵희-양화조(G-RuO2)납미복합재료.대양품진행료X사선연사(XRD),소묘전자현미경(SEM),투사전자현미경(TEM)화능량색산보(EDS)표정.SEM결과표명양화조입자균균지분산재석묵희층편상.TEM결과현시양화조납미입자적평균립경약위3 nm.대양품진행료순배복안화충방전성능측시,결과표명재1 A·g-1적전류밀도하,양품재H2SO4(1 mol·L-1)용액중구유219.7 F·g-1적비전용.
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