The design and synthesis of Ni3S4/Co3S4 heterostructure@mesoporous carbon with hybrid-capacitance

被引：9
作者：
Xu, Kairui [1 ]
Jiang, Xiaojie [1 ]
Gong, Qinghua [1 ]
Ren, Yongqiang [1 ]
Gao, Tingting [1 ]
He, Yanyan [1 ]
Xu, Xiaolong [1 ,2 ]
Cao, Pei [1 ]
Zhou, Guowei [1 ]
机构：
[1] Qilu Univ Technol, Shandong Acad Sci, Sch Chem & Pharmaceut Engn, Key Lab Fine Chem Univ Shandong, Jinan 250353, Peoples R China
[2] Qilu Univ Technol, Shandong Acad Sci, Sch Mat Sci & Engn, Jinan 250353, Peoples R China
来源：
MATERIALS LETTERS | 2021年 / 290卷
基金：
中国国家自然科学基金;
关键词：
Hybird-capacitance; Heterostructure; Ni3S4/Co3S4; Mesoporous carbon; SUPERCAPACITOR; ELECTRODE;
D O I：
10.1016/j.matlet.2021.129489
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
To obtain high-performance electrode materials, the Ni3S4/Co3S4 heterostructure@mesoporous carbon (MC) was designed and synthesized by hydrothermal technology. The X-ray powder diffraction (XRD), Raman, N-2 adsorption-desorption (BET) and transmission electron microscope (TEM) tests proved a certain degree of graphitization, mesoporosity, and Ni3S4/Co3S4 heterostructure of Ni3S4/Co3S4 @MC. The synergy of above structures delivered a good electrochemical reversibility and high charge transfer kinetics. As an electrode material with hybrid-capacitive of electrochemical double layer and battery-type capacitances, Ni3S4/Co3S4@MC displayed a specific capacitance of 1725.6 F g(-1) at 0.5 A g(-1) and a retention rate of 67.7% with a fading rate of 1.6% per cycle over 2000 cycles at 1.0 A g(-1). It provides an effective method to synthesize the high-performance electrode materials with hybrid-capacitance. (C) 2021 Elsevier B.V. All rights reserved.
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页数：4
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