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研究论文

溶剂热法球状Ni3S4制备及其在超级电容器的应用

  • 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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  • 南开大学 新能源材料化学研究所,先进能源材料化学教育部重点实验室,天津300071

收稿日期: 2011-12-05

  修回日期: 2011-12-12

  网络出版日期: 2012-01-05

基金资助

国家自然科学基金(51171083, 51071087, 50971071)和长江学者创新团队(IRT 0927)资助

Synthesis of Spherical Ni3S4 by Solvothermal Method as Supercapacitor Electrodes

  • 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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  • Institute of New Energy and Material Chemistry,Key Laboratory of Advanced Energy Materials Chemistry-Ministry of Education,Nankai University,Tianjin 300071,China

Received date: 2011-12-05

  Revised date: 2011-12-12

  Online published: 2012-01-05

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 %. 通过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.

本文引用格式

郇庆娜 , 焦丽芳 , 王庆红 , 杜红梅 , 杨加芹 , 彭文修 , 王一菁 , 袁华堂 . 溶剂热法球状Ni3S4制备及其在超级电容器的应用[J]. 电化学, 2012 , 18(3) : 274 -277 . DOI: 10.61558/2993-074X.2915

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 A.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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