| 溶剂热法制备球状Ni3S4及其在超级电容器的应用 |
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| 引用本文： | 郇庆娜,焦丽芳,王庆红,杜红梅,杨加芹,彭文修,王一菁,袁华堂.溶剂热法制备球状Ni3S4及其在超级电容器的应用[J].电化学,2012(3):275-278. |
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| 作者姓名： | 郇庆娜 焦丽芳 王庆红 杜红梅 杨加芹 彭文修 王一菁 袁华堂 |
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| 作者单位： | 南开大学先进能源材料化学教育部重点实验室新能源材料化学研究所 |
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| 基金项目： | 国家自然科学基金项目(No.51171083,No.51071087,No.50971071);长江学者创新团队(No.IRT 0927)资助 |
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| 摘 要： | 应用溶剂热法合成Ni3S4微米球,采用XRD和SEM表征样品物相结构、观察其微观形貌.电化学性能测试表明Ni3S4电极有较好的比电容性能,0.5和4 A.g-1放电电流密度下,其比容量分别为1120.6和433.4 F.g-1;1000周循环充放电后,其容量保持率为89.37%和84.88%.XRD、XPS和CV测试结果表明,其电化学反应机理为Ni(OH)2与NiOOH的相互转化.
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| 关 键 词： | 超级电容器 Ni3S4 溶剂热法 |
Synthesis of Spherical Ni3S4 by Solvothermal Method as Supercapacitor Electrodes |
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| HUAN Qing-na,JIAO Li-fang,WANG Qing-hong,DU Hong-mei, YANG Jia-qin,PENG Wen-xiu,WANG Yi-jing,YUAN Hua-tang.Synthesis of Spherical Ni3S4 by Solvothermal Method as Supercapacitor Electrodes[J].Electrochemistry,2012(3):275-278. |
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| Authors: | HUAN Qing-na JIAO Li-fang WANG Qing-hong DU Hong-mei YANG Jia-qin PENG Wen-xiu WANG Yi-jing YUAN Hua-tang |
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| Institution: | (Institute of New Energy and Material Chemistry,Key Laboratory of Advanced Energy Materials Chemistry-Ministry of Education,Nankai University,Tianjin 300071,China) |
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| Abstract: | The Ni3S4 microspheres have been synthesized via a facile solvothermal method.The crystal structure and surface morphology are characterized by X-ray diffraction(XRD) and scanning electron microscopy(SEM).Microspherical Ni3S4 exhibits good electrochemical capacitance validated by electrochemical measurements.The specific capacities of 1120.6 F·g-1 at 0.5 F·g-1 and 433.4 F·g-1 at 4 A·g-1 with the capacitance retention of 89.37% and 84.88% were obtained after 1000 cycles,respectively.The electrochemical reaction is expected due to the transformation of Ni(OH)2 and NiOOH based on the XRD,XPS and CV analysis results. |
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| Keywords: | supercapacitor nickel sulfide solvothermal method |
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