CORC  > 兰州理工大学  > 兰州理工大学  > 材料科学与工程学院
Multi-dimensional hybrid heterostructure MoS2@C nanocomposite as a highly reversible anode for high-energy lithium-ion capacitors
Zhang, Hu-Jun2; Jia, Qing-Chao1; Kong, Ling-Bin1,2
刊名Applied Surface Science
2020-11-30
卷号531
关键词Anodes Carbon Electrolytes Energy storage Layered semiconductors Lithium Supercapacitor Synthesis (chemical) Confinement effects Electrolyte solutions Heterogeneous composite materials Hollow nanospheres Hybrid energy storage devices Lithium-ion capacitors Maximum power density Power characteristic
ISSN号01694332
DOI10.1016/j.apsusc.2020.147222
英文摘要

Lithium-ion capacitors (LICs) are a new generation of hybrid energy storage devices, and there is room for improvement in power characteristic, energy density and cycling life. This paper proposes a facile and high-efficiency strategy for the preparation of high-performance MoS2 based anodes, here we have successfully synthesized a multi-dimensional hybrid heterogeneous composite material (MoS2@C) in which nanoparticles, nanoflakes and hollow nanospheres coexist. The strong adhesion of the Mo-O-C bond formed between MoS2 and carbon ensures favorable structural integrity, while the architecture made of nanoflakes reduces the diffusion distance of Li+. In addition, the voids of the hollow structure can alleviate the volume change during repeated Li+ intercalation/de-intercalation processes and ensure good contact between the material and the electrolyte solution. Moreover, due to the confinement effect of the hollow structure and carbon and the introduction of oxygen vacancies, excellent rate performance is achieved. Given this, in a wide potential window of 0–4.5 V, the MoS2@C//AC device has the highest energy density (189.68 Wh kg−1), the maximum power density (11.25 kW kg−1), subordinate self-discharge rate and long lifespan. Therefore, this research work provides some important ideas and insights for the rational design of MoS2-based high-performance LICs anode materials. © 2020 Elsevier B.V.

WOS研究方向Chemistry ; Materials Science ; Physics
语种英语
出版者Elsevier B.V.
WOS记录号WOS:000566336500009
内容类型期刊论文
源URL[http://ir.lut.edu.cn/handle/2XXMBERH/114978]  
专题材料科学与工程学院
作者单位1.School of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou; Gansu; 730050, China
2.State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals, Lanzhou University of Technology, Lanzhou; Gansu; 730050, China;
推荐引用方式
GB/T 7714
Zhang, Hu-Jun,Jia, Qing-Chao,Kong, Ling-Bin. Multi-dimensional hybrid heterostructure MoS2@C nanocomposite as a highly reversible anode for high-energy lithium-ion capacitors[J]. Applied Surface Science,2020,531.
APA Zhang, Hu-Jun,Jia, Qing-Chao,&Kong, Ling-Bin.(2020).Multi-dimensional hybrid heterostructure MoS2@C nanocomposite as a highly reversible anode for high-energy lithium-ion capacitors.Applied Surface Science,531.
MLA Zhang, Hu-Jun,et al."Multi-dimensional hybrid heterostructure MoS2@C nanocomposite as a highly reversible anode for high-energy lithium-ion capacitors".Applied Surface Science 531(2020).
个性服务
查看访问统计
相关权益政策
暂无数据
收藏/分享
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。


©版权所有 ©2017 CSpace - Powered by CSpace