One step hydrothermal synthesis of 3D CoS2@MoS2-NG for high performance supercapacitors

被引：26

作者：

Meng, Qi ^{[1
]}

Chen, Yizhi ^{[1
]}

Zhu, Wenkun ^{[1
]}

Zhang, Ling ^{[1
]}

Yang, Xiaoyong ^{[1
]}

Duan, Tao ^{[1
]}

机构：

[1] Southwest Univ Sci & Technol, Sichuan Civil Mil Integrat Inst, Sichuan Coinnovat Ctr New Energet Mat, Mianyang 621010, Sichuan, Peoples R China

来源：

NANOTECHNOLOGY | 2018年 / 29卷 / 29期

基金：

中国国家自然科学基金;

关键词：

nanocomposites; energy storage and conversion; hydrothermal; MoS2; CoS2; graphene; METALLIC MOS2; CARBON;

D O I：

10.1088/1361-6528/aac25f

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

A three-dimensional (3D) MoS2 coated CoS2-nitrogen doped graphene (NG) (CoS2@MoS2-NG) hybrid has been synthesized by a one step hydrothermal method as supercapacitor (SC) electrode material for the first time. Such a composite consists of NG embedded with stacked CoS2@MoS2-NG sheets. With a 3D skeleton, it prevents the agglomeration of CoS2@MoS2 nanoparticles, resulting in sound conductivity, rich porous structures and a large surface area. The results indicate that CoS2@MoS2-NG has higher specific capacitance (198 F g(-1) at 1 A g(-1)), better rate performance (with about 56.57% from 1 to 16 A g(-1)) and an improved cycle stability (with about 96.97% after 1000 cycles). It is an ideal candidate for SC electrode materials.

引用

页数：6

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