Graphene-wrapped CNT@MoS2 hierarchical structure: synthesis, characterization and electrochemical application in supercapacitors
文献类型:期刊论文
作者 | 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 |
刊名 | New Journal of Chemistry |
出版日期 | 2017 |
卷号 | 41期号:15页码:7142-7150 |
ISSN号 | 1144-0546 |
通讯作者 | 刘晓红 ; 王金清 |
英文摘要 | 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. |
学科主题 | 材料科学与物理化学 |
资助信息 | the National Natural Science Foundation of China (No. 51502306;51575507) |
收录类别 | SCI |
语种 | 英语 |
WOS记录号 | WOS:000406192800026 |
源URL | [http://210.77.64.217/handle/362003/22214] |
专题 | 兰州化学物理研究所_固体润滑国家重点实验室 |
作者单位 | 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 |
推荐引用方式 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,&Yang SR.(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. |
入库方式: OAI收割
来源:兰州化学物理研究所
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