NiS2纳米片的制备及其在非对称超级电容器中的应用

王元有; 刘亚楠; 金党琴

doi:10.13208/j.electrochem.170103

电化学 >

2017 , Vol. 23 >Issue 6: 667 - 674

DOI: https://doi.org/10.13208/j.electrochem.170103

研究论文

NiS₂纳米片的制备及其在非对称超级电容器中的应用

王元有 ,
刘亚楠 ,
金党琴

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扬州工业职业技术学院, 扬州 225127

收稿日期: 2017-01-03

修回日期: 2017-02-10

网络出版日期: 2017-02-13

基金资助

省级青蓝工程|项目(2016-15)、校级重点课题（No. 2016xjzk001）、江苏高校品牌建设工程资助项目（No. PPZY2015B180）及2017年江苏省高等学校优秀科技创新团队项目（苏教科[2017]6号）资助

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Preparation of NiS₂nanosheet and its application in asymmetric supercapacitor

Wang Yuan-you ,
Liu Ya-nan ,
JIN Dang-qin

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Department of Chemical Engineering, Yangzhou Polytechnic Institute, Yangzhou, 225127

Received date: 2017-01-03

Revised date: 2017-02-10

Online published: 2017-02-13

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摘要

本文采用牺牲模板法，以Ni(OH)₂作为前驱体制备NiS₂. 通过对NiS₂进行XRD、EDS、BET、SEM及TEM等表征来研究NiS₂的元素组成及结构形貌. SEM及TEM结果显示前驱体及NiS₂均为纳米片结构. 电化学测试结果表明NiS₂存在着优秀的电容性能，在电流密度为1 A·g^-1时，NiS₂比电容能够达到1067.3 F·g^-1，同时具有高的倍率特性. 为了进一步探究NiS₂作为电活性材料的实用性，以NiS₂作为阳极材料，活性炭（AC）作为阴极组装成非对称超级电容器，在功率密度为0.8 kW·kg^-1，能量密度高达38.4 Wh·kg^-1，并且在3000次恒流充放电后，比电容依然保持93.7%.

关键词： 牺牲模板法; NiS₂纳米片; 非对称电容器

本文引用格式

王元有 , 刘亚楠 , 金党琴 . NiS₂纳米片的制备及其在非对称超级电容器中的应用[J]. 电化学, 2017 , 23(6) : 667 -674 . DOI: 10.13208/j.electrochem.170103

Abstract

In this work, the NiS₂nanosheets have been synthesized using Ni(OH)₂ as a precursor through a sacrificial template method. The microstructure and chemical composition of as-prepared NiS₂were characterized by XRD, EDS, BET, SEM and TEM techniques. The results showed that both Ni(OH)₂ and NiS₂ were composed of nanoplates. The electrochemical tests revealed that NiS₂ exhibited the high specific capacitance of 1067.3 F•g^-1 at a current density of 1 A•g^-1 and excellent rate performance. Furthermore, in order to evaluate the practical application of NiS₂, an asymmetric supercapacitor, NiS₂ as the positive electrode and AC as the negative electrode, displayed high energy density of 38.4 Wh•kg^-1 with a power density of 0.8 kW•kg^-1. Meanwhile, the asymmetric supercapacitor showed a superior cycling performance and 93.7% of the specific capacitance was retained after 3000 charge-discharge cycles.

Key words： sacrificial template method; NiS₂; Asymmetric supercapacitor

参考文献

[1] Xing J C, Zhu Y L, Zhou Q W, et al. Fabrication and shape evolution of CoS₂ octahedrons for application in supercapacitors[J]. Electrochimica Acta, 2014, 136: 550-556.

[2] Pu J, Cui F L, Chu S B, et al. Preparation and electrochemical characterization of hollow hexagonal NiCo₂S₄ nanoplates as pseudocapacitor materials[J]. ACS Sustainable Chemistry & Engineering, 2014, 2(4): 809-815.

[3] Xu X, Zhou H, Ding S J, et al. The facile synthesis of hierarchical NiCoO₂nanotubes comprised ultrathin nanosheets for supercapacitors[J]. Journal of Power Sources, 2014, 267: 641-647.

[4] Yang J Q, Duan X C, Guo W, et al. Electrochemical performances investigation of NiS/GO composite as electrode material for supercapacitors[J]. Nano Energy, 2014, 5: 74-81.

[5] Pang H, Wei C Z, Li X X, et al. Microwave-assisted synthesis of NiS₂nanostructures for supercapacitors and cocatalytic enhancing photocatalytic H₂production[J]. Scientific Reports, 2014, 4: 3577.

[6] Li J J, Hu Y X, Liu M C, et al. Mechanical alloying synthesis of Ni₃S₂nanoparticles as electrode material for pseudocapacitor with excellent performances[J]. Journal of Alloys Compounds, 2016, 656: 138-145.

[7] Zhang Y, Sun W P, Rui X H, et al. One-pot synthesis of tunable crystalline Ni₃S₄@Amophous MoS₂ core/shell nanospheres for high-performance supercapacitors[J]. Small, 2015, 11 (30): 3694-3702.

[8] Chen H, Hu L F, Yan Y, et al. One-step fabrication of ultrathin porous nickel hydroxide-manganese dioxide hybrid nanosheets for supercapacitor electrodes with excellent capacitive performance[J]. Advanced Energy Materials, 2013, 3(12): 1636-1646.

[9] Dai Z Y, Zang X X, Yang J, et al. Template synthesis of shape-tailorable NiS₂ hollow prisms as high-performance supercapacitor materials[J]. ACS Applied materials & Interfaces, 2015, 7 (45): 25396-25401.

[10] Zhang H H, Guan B, Gu J N, et al. One-step synthesis of nickel cobalt sulphides particles: tuning the composition for high performance supercapacitors [J]. RSC Advances, 2016, 6(64): 58916-58924.

[11] Ruan Y J, Jiang J J, Wan H Z, et al. Rapid self-assembly of porous square rod-like nickel persulfide via a facile solution method for high-performance supercapacitors[J]. Jounal of Power Sources, 2016, 301: 122-130.

[12] Chen H C, Jiang J J, Zhang L, et al. In situ growth of NiCo₂S₄ nanotube arrays on Ni foam for supercapacitors: Maximizing utilization efficiency at high mass loading to achieve ultrahigh areal pseudocapacitance[J]. Jounal of Power Sources, 2014, 254: 249-257.

[13] Chen H C, Jiang J J, Zhao Y D, et al. One-pot synthesis of porous nickel cobalt sulphides: tuning the composition for superior pseudocapacitance[J]. Journal Materials Chemistry A, 2015, 3(1): 428-437.

[14] Dai C S, Chien P Y, Lin J Y, et al. Hierarchically structured Ni₃S₂/Carbon nanotube compoosites as high performance cathode materials for asymmetric supercapacitors[J]. ACS Applied materials & Interfaces, 2013, 5(22): 12168-12174.

[15] Chou S W, Lin J Y. Cathodic Deposition of Flaky Nickel Sulfide Nanostructure as an Electroactive Material for High-Performance Supercapacitors[J]. Journal of The Electrochemical Society, 2013, 160(4): D178-D182.

[16] Zhu Y R, Wu Z B, Jing M J, et al. Mesoporous NiCo₂S₄ nanoparticles as high-performance electrode materials for supercapacitors[J]. Journal of Power Sources, 2015, 273:584-590.

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