MgO-template-assisted synthesis of worm-like carbon@MoS2 composite for lithium ion battery anodes | |
Wan L(万柳)1; Sun W(孙伟)1,3; Shen JJ(申娟娟)1,2; Li XC(李小成)1; Li XC(李小成) | |
刊名 | Electrochimica Acta |
2016 | |
卷号 | 211页码:962-971 |
关键词 | template-assisted synthesis molybdenum disulfide amorphous carbon lithium-ion batteries |
ISSN号 | 0013-4686 |
通讯作者 | 李小成 |
英文摘要 | In this study, a facile MgO template-assisted route has been proposed for the preparation of carbon@MoS2 composites via a one-step hydrothermal method followed by a thermal annealing process. By using sucrose as a carbon source and commercial MgO powder as a structure-directing agent, a three-dimensional sphere-like carbon@MoS2 nanoarchitecture was assembled by one-dimensional worm-like nanorods which were composed of few-layered MoS2 nanosheets and amorphous carbon matrix. The influence of different amount of MgO template on the morphology, structure, and lithium storage performance of the carbon@MoS2 composites is systematically investigated. The carbon@MoS2-2 composite synthesized with a Mo precursor: MgO molar ratio of 1:1 exhibits much higher reversible capacity (905.3 mAh g−1 after 100 cycles at a current density of 100 mA g−1) and better high-rate capability (503.4 mAh g−1 at 5000 mA g−1) than those of bare MoS2 and template-free carbon@MoS2-0 composite. Impressively, superior cycling stability is achieved for the carbon@MoS2-2 composite with a capacity retention of 93.4% even after 400 charge/discharge cycles at 5000 mA g−1. The excellent electrochemical performance for carbon@MoS2-2 composite can be ascribed to its unique hierarchical nanoarchitecture and synergetic effect between MoS2 nanosheets and amorphous carbon. |
学科主题 | 材料科学与物理化学 |
收录类别 | SCI |
语种 | 英语 |
WOS记录号 | WOS:000380904100109 |
内容类型 | 期刊论文 |
源URL | [http://210.77.64.217/handle/362003/20455] |
专题 | 兰州化学物理研究所_清洁能源化学与材料实验室 |
通讯作者 | Li XC(李小成) |
作者单位 | 1.Chinese Acad Sci, Lanzhou Inst Chem Phys, Lab Clean Energy Chem & Mat, Lanzhou 730000, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China 3.Lanzhou Univ Technol, Sch Petrochem Engn, Lanzhou 730050, Peoples R China |
推荐引用方式 GB/T 7714 | Wan L,Sun W,Shen JJ,et al. MgO-template-assisted synthesis of worm-like carbon@MoS2 composite for lithium ion battery anodes[J]. Electrochimica Acta,2016,211:962-971. |
APA | Wan L,Sun W,Shen JJ,Li XC,&李小成.(2016).MgO-template-assisted synthesis of worm-like carbon@MoS2 composite for lithium ion battery anodes.Electrochimica Acta,211,962-971. |
MLA | Wan L,et al."MgO-template-assisted synthesis of worm-like carbon@MoS2 composite for lithium ion battery anodes".Electrochimica Acta 211(2016):962-971. |
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