| RGO/NiCo_2O_4复合电极材料制备及电化学性能研究 |
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| 引用本文： | 甘传先,丁艳花,张小磊,张娜.RGO/NiCo_2O_4复合电极材料制备及电化学性能研究[J].上海应用技术学院学报,2018,18(3):228-234, 242. |
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| 作者姓名： | 甘传先 丁艳花 张小磊 张娜 |
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| 作者单位： | 上海应用技术大学材料科学与工程学院 |
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| 基金项目： | 国家自然科学基金项目(21707093、51672177)资助 |
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| 摘 要： | 采用层-层自组装法制备了前驱体RGO/Ni-Co@Ni-foam(泡沫镍负载石墨烯/镍-钴金属化合物),并在高温下煅烧得到RGO/NiCo_2O_4@Ni-foam复合电极材料。运用X射线衍射仪、扫描电子显微镜以及能谱仪对多孔RGO/NiCo_2O_4@Ni-foam复合材料进行结构表征,并通过循环伏安、恒流充放电等测试方法考察了其作为电极材料的电化学性能。结果表明,制备的多孔RGO/NiCo_2O_4@Ni-foam复合电极材料的比电容在电流密度为0.5A/g时可达到444F/g,并且在经过1 000次循环实验后,比电容仍有342F/g。这表明多孔RGO/NiCo_2O_4@Ni-foam复合材料在超级电容器领域具有广阔的应用前景。
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| 关 键 词： | 石墨烯 NiCo2O4 复合电极 自组装 超级电容器 |
| 收稿时间： | 2017/11/16 0:00:00 |
Study on the Preparation and Electrochemical Properties of RGO/NiCo2O4 Composite Electrode Materials |
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| GAN Chuanxian,DING Yanhu,ZHANG Xiaolei and ZHANG Na.Study on the Preparation and Electrochemical Properties of RGO/NiCo2O4 Composite Electrode Materials[J].Journal of Shanghai Institute of Technology: Natural Science,2018,18(3):228-234, 242. |
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| Authors: | GAN Chuanxian DING Yanhu ZHANG Xiaolei and ZHANG Na |
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| Institution: | School of Materials Science and Engineering, Shanghai Institute of Technology, Shanghai 201418, China,School of Materials Science and Engineering, Shanghai Institute of Technology, Shanghai 201418, China,School of Materials Science and Engineering, Shanghai Institute of Technology, Shanghai 201418, China and School of Materials Science and Engineering, Shanghai Institute of Technology, Shanghai 201418, China |
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| Abstract: | A precursor RGO/Ni-Co@Ni-foam was synthesized by layer by layer self-assembly method, and the porous RGO/NiCo2O4@Ni-foam composite electrode material was calcined at high temperature. The composite was characterized by X ray diffractometer, scanning electron microscope and energy dispersive spectrometer. The electrochemical properties of porous composites as the electrode material were investigated by cyclic voltammetry method, constant current charge and discharge method. The results showed that the specific capacitance of the porous RGO/NiCo2O4@Ni-foam composite electrode could reach 444 F/g at the current density of 0.5 A/g, and after 1 000 cycles of test, the specific capacitance was still 342 F/g. Indicating that the porous RGO/NiCo2O4@Ni-foam composite had a broad application prospect in the field of supercapacitor. |
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