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.

引用

页数：4

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