| 冯晓娟,石彦龙,魏欣欣,张映龙,马金玉,梁志琪.化学通报,2019,82(1):51-55,50. |
| 三维NiO/CoMoO4纳米线/片复合材料的制备及其超级电容特性 |
| Preparation of Three-Dimensional NiO/ CoMoO4 Nanowires/Nanosheets composite materials and Their Supercapacitor Properties |
| 投稿时间：2018-06-07 修订日期：2018-08-02 |
| DOI： |
| 中文关键词: 氧化镍/钼酸钴 多级结构 水热法 超级电容特性 |
| 英文关键词:NiO/CoMoO4, Hierarchical structure, Hydrothermal method, Supercapacitance performance |
| 基金项目:甘肃省高等学校科研项目(2017A-088)、甘肃省大学生创新创业训练计划项目(201610740003)和河西学院第八批大学生科技创新项目(106)资助 |
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| 中文摘要: |
| 采用两步水热法和高温退火法成功制备了三维氧化镍/钼酸钴（NiO/CoMoO4）的复合电极材料。利用XRD、扫描电镜、投射电镜和电化学方法分别对其结构、表面形貌和电化学性能进行了表征和研究。结果表明，NiO/CoMoO4呈独特的纳米线/片状结构而不同于NiO的针状形貌，其结构为活性物质提供了更大的活性位点。在电流密度为0.3A/g下，复合物的比电容高达2253F/g，远远高于同电流密度下纯NiO电极材料的比电容，循环2000圈后，电容的保持率为92%，NiO和CoMoO4的协同效应增强了其超级电容特性。 |
| 英文摘要: |
| Three-dimensional NiO/CoMoO4composite electrode material has been successfully prepared by the two-step hydrothermal and high temperature annealing. Its structure, surface morphology and electrochemical performance were characterized and studied through X-ray diffraction analysis, scanning electron microscopy and electrochemical method. The results showed that NiO/CoMoO4 composite materials own typical nanowires/nanosheet structure that was different from NiO needle-like morphology. The structure provides more active sites for the active substance. The specific capacitance of composites can reach 2253F/g under the current density of 0.3A/g, which is the higher than pure NiO. It displayed good electrochemical stability with 92% of the initial capacitance over consecutive 2000 cycles．The synergistic effect between NiO and CoMoO4improve its supercapacitance characteristics. |
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