期刊
JOURNAL OF COLLOID AND INTERFACE SCIENCE
卷 583, 期 -, 页码 579-585出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jcis.2020.09.055
关键词
Sodium-ion battery; Anode material; 1T molybdenum disulfide; Large layer spacing
资金
- Zhongyuan Thousand Talents Plan-Science and Technology Innovation Leading Talents Project [204200510030]
- Henan Provincial Science and technology innovation team [C20150026]
- Natural Science Foundation of China [22074130, 51902280]
- XYNU
- Chongqing Key Laboratory for Advanced Materials & Technologies of Clean Energies [JJNY201908]
The research successfully designed and constructed high-performance electrochemical energy storage devices by growing V-doped 1T MoS2 nanosheets on carbon cloth via a one-step hydrothermal method. The results demonstrate that V-doping enhances the performance of MoS2, leading to better electrochemical properties and cycling stability. This study provides an effective and eco-friendly route for obtaining superior Na+ storage devices.
The design and construction of advanced electrode materials is important to the development of highperformance electrochemical energy storage devices. In this paper, V-doped 1T MoS2 nanosheets with a large layer spacing are grown on carbon cloth (CC) via a one-step hydrothermal method. The resulting material features abundant edge sites and active centers, and its large layer spacing facilitates the inter layer shuttle of Na+. Doping with V buffers the volume change and maintains the integrity of MoS2. The layered structure of the composite featuring CC as a conductive substrate effectively prevents the agglomeration of MoS2 during the electrochemical process. When used as an anode material for a Na+ battery, the material displays a high first-cycle irreversible discharge specific capacity of 1234.9 mAh g(-1). A specific capacity of 453.2 mAh g(-1) is obtained after 100 cycles at a current density of 200 mA g(-1). This work provides an effective and eco-friendly route toward obtaining superior MoS2 electrodes for high-performance Na+ storage. (c) 2020 Elsevier Inc. All rights reserved.
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