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

doi:10.61558/2993-074X.2915

电化学 >

2012 , Vol. 18 >Issue 3: 274 - 277

DOI: https://doi.org/10.61558/2993-074X.2915

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

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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

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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 %. 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.

关键词： 超级电容器; Ni3S4; 溶剂热法

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.

Key words： supercapacitor; nickel sulfide; solvothermal method

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