| CuO/GNS复合材料的制备及其电化学性能 |
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| 引用本文： | 金小青,曹杰,杨琴,祁芊芊,杨万珍.CuO/GNS复合材料的制备及其电化学性能[J].化学通报,2017,80(5):493-498. |
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| 作者姓名： | 金小青 曹杰 杨琴 祁芊芊 杨万珍 |
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| 作者单位： | 河西学院化学化工学院,河西学院化学化工学院,河西学院化学化工学院,河西学院化学化工学院,河西学院化学化工学院 |
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| 基金项目： | 河西学院科研创新与应用校长基金（XZ2014-24） |
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| 摘 要： | 利用改进的Hummers 法制备GO,采用化学沉淀法合成CuO/GNS复合材料,用X 射线衍射(XRD)、扫描电镜(FESEM)、比表面积测试(BET)等表征了产物的组成、结构和形貌；用循环伏安、恒电流充放电等测试方法对复合材料的电化学性能进行了研究。结果显示：在这种复合材料中,石墨烯作为导电骨架,有利于增加氧化铜颗粒之间的导电性和材料的机械稳定性。大电流放电表现出优异的电化学性能,在 10 A.g-1的电流密度下复合材料的比电容仍可达 276 F.g-1,1000 次循环后比电容仍能保持86.5%,呈示该复合材料具有优异的电化学性能。
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| 关 键 词： | 氧化铜 石墨烯 复合材料 超级电容器 电化学性能 |
| 收稿时间： | 2016/9/12 0:00:00 |
| 修稿时间： | 2016/11/6 0:00:00 |
Synthesis of CuO/GNS Composites andits SuperCapacitor Properties |
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| JIN Xiaoqing,CAO Jie,YANG Qin,QI Qianqian and YANG Wanzhen.Synthesis of CuO/GNS Composites andits SuperCapacitor Properties[J].Chemistry,2017,80(5):493-498. |
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| Authors: | JIN Xiaoqing CAO Jie YANG Qin QI Qianqian and YANG Wanzhen |
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| Institution: | Key Laboratory of Hexi Corridor Resourses Utilization of Gansu,Department of Chemistry. Hexi University,Key Laboratory of Hexi Corridor Resourses Utilization of Gansu,Department of Chemistry. Hexi University,Key Laboratory of Hexi Corridor Resourses Utilization of Gansu,Department of Chemistry. Hexi University,Key Laboratory of Hexi Corridor Resourses Utilization of Gansu,Department of Chemistry. Hexi University,Key Laboratory of Hexi Corridor Resourses Utilization of Gansu,Department of Chemistry. Hexi University |
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| Abstract: | graphene oxide is prepared from nature graphite via a way of modified Hummers method, The CuO/GNS Composites were synthesized by a chemical co-precipitation method . In this work, The composition, microstructure and morphology of the samples were systematically characterized by X-ray diffraction (XRD), Field emission scanning electron microscopy (FE-SEM) and Nitrogen adsorption (BET). The electrochemical performances were investigated by cyclic voltammetry and constant current charge/discharge techniques. It was found that the grapheme as conductive matrix, improved conductivity and structure stability of the CuO. As a result, the CuO/GNS exhibit excellent electrochemical performances, and its specific capacitance as single electrode is up to 276 F.g-1 at current density of 10 A.g-1, and remains at about 86.5% of the initial value after 1000 cycles. Indicating that the composite is of excellent electrochemical performance. |
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| Keywords: | CuO graphene composites supercapacitor electrochemical performan |
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