Hydrothermally prepared nickel disulphide nanoparticles with enhanced areal capacitance

被引：5
作者：
Bhardwaj, Rekha [1 ]
Jha, Ranjana [2 ]
Bhushan, Medha [1 ]
Sharma, Reetu [3 ]
机构：
[1] Univ Delhi, Netaji Subhas Inst Technol, Dept Phys, Res Lab Energy Syst, New Delhi 110078, India
[2] Netaji Subhas Univ Technol, Dept Phys, Res Lab Energy Syst, New Delhi 110078, India
[3] Netaji Subhas Univ Technol, Dept Chem, Res Lab Energy Syst, New Delhi 110078, India
来源：
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS | 2021年 / 32卷 / 02期
关键词：
SENSITIZED SOLAR-CELLS; COUNTER ELECTRODES; ELECTROCHEMICAL PERFORMANCE; AQUEOUS-ELECTROLYTE; CHEMICAL-SYNTHESIS; ENERGY-STORAGE; SUPERCAPACITOR; NIS; GRAPHENE; CONVERSION;
D O I：
10.1007/s10854-020-05006-x
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
In this study, mesoporous nickel disulphide (NiS2) nano-particles have been successfully prepared using hydrothermal method. Phase formation and functional groups were identified by the high-resolution X-ray diffractometer (HR-XRD) and Fourier transform infrared spectroscopy (FTIR), respectively. Energy band gap of prepared NiS2 nanoparticles has been studied by diffuse reflectance spectroscopy. FESEM and N-2 adsorption-desorption analysis affirmed that surface of the NiS2 nanoparticles is rough with large pore diameter 6.46 nm. Electro-catalytic properties of NiS2 have been analysed by electrochemical impedance spectroscopy (EIS) and cyclic voltammetry technique in 1 M aqueous LiOH electrolyte. Electrochemical characterization affirmed that NiS2 has minimum charge transfer resistance (R-ct) value of 3.84 omega with enhanced areal capacitance 9.23 F cm(-2) which showed 87% cyclic stability.
引用
收藏
页码：2409 / 2421
页数：13
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