Graphene-wrapped CNT@MoS2 hierarchical structure: synthesis, characterization and electrochemical application in supercapacitors | |
Department | 固体润滑国家重点实验室 |
Sun TH(孙天华)1,2; Liu XH(刘晓红)1; Li ZP(李章朋)1; Ma LM(马立民)1; Wang JQ(王金清)1; Yang SR(杨生荣)1; Liu XH(刘晓红); Wang JQ(王金清) | |
2017 | |
Source Publication | New Journal of Chemistry |
ISSN | 1144-0546 |
Volume | 41Issue:15Pages:7142-7150 |
Abstract | Layered transition metal dichalcogenides (TMDs) have attracted widespread attention for developing electrochemical energy storage due to their unique graphite-like structure and high theoretical capacity. However, the semiconductor character of TMDs affects their electrical conductivity, causing low specific capacitance, rapid capacity fading and poor cyclic stability. Herein, a hierarchical graphene-wrapped CNT@MoS2 (CMG) electrode material has been fabricated aiming at enhancing the conductivity and structural stability during continuous charge–discharge processes, thus improving its electrochemical properties. As a novel electrode material, the prepared CMG electrode delivers a high specific capacitance of 498 F g−1 and excellent long-term cycle-life stability (only 5.7% loss of its initial capacitance after 10000 cycles at a high current density of 5 A g−1), as well as improved rate performance, indicating that such a composite material is an ideal electrode material for supercapacitors. Its outstanding electrochemical performance can be ascribed to an expanded interlayer spacing of MoS2 and its unique hierarchical architecture. More importantly, this method can be readily extended to the construction of other TMD-based electrodes which were hampered in electrochemical applications owing to their poor electrical conductivity. |
Subject Area | 材料科学与物理化学 |
DOI | 10.1039/c7nj00623c |
Funding Organization | the National Natural Science Foundation of China (No. 51502306;51575507) |
Indexed By | SCI |
If | 3.269 |
Language | 英语 |
Funding Project | 聚合物摩擦学研究组 |
compositor | 第一作者单位 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.licp.cn/handle/362003/22214 |
Collection | 固体润滑国家重点实验室(LSL) |
Corresponding Author | Liu XH(刘晓红); Wang JQ(王金清) |
Affiliation | 1.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Gansu, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100080, Peoples R China |
Recommended Citation GB/T 7714 | Sun TH,Liu XH,Li ZP,et al. Graphene-wrapped CNT@MoS2 hierarchical structure: synthesis, characterization and electrochemical application in supercapacitors[J]. New Journal of Chemistry,2017,41(15):7142-7150. |
APA | Sun TH.,Liu XH.,Li ZP.,Ma LM.,Wang JQ.,...&王金清.(2017).Graphene-wrapped CNT@MoS2 hierarchical structure: synthesis, characterization and electrochemical application in supercapacitors.New Journal of Chemistry,41(15),7142-7150. |
MLA | Sun TH,et al."Graphene-wrapped CNT@MoS2 hierarchical structure: synthesis, characterization and electrochemical application in supercapacitors".New Journal of Chemistry 41.15(2017):7142-7150. |
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