4.6 Article

Interlayer-expanded MoS2@C hollow nanorods for enhanced sodium storage

期刊

CHEMICAL ENGINEERING SCIENCE
卷 262, 期 -, 页码 -

出版社

PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ces.2022.117976

关键词

Hollow nanorods; Expanded interlayer spacing; MoS2 nanosheets; Sodium ion batteries

资金

  1. Talent Introduction Start -Up Foundation of Guangxi Minzu University [202 1KJQD08]
  2. Natural Science Foundation of China [22074130, 22HASTIT029]
  3. Nat- ural Science Foundation of China [51902280]
  4. Natural Science Foundation of Henan [51902280]
  5. Program for Science & Technology Innovation Talents in Universities of Henan Province [202300410329]
  6. Nanhu Scholars Program of XYNU

向作者/读者索取更多资源

In this paper, a hollow rod shape MoS2@C composite is prepared by using hydrothermal method, which exhibits significant electrochemical performance and meets the requirements of high discharge capacity and superb rate performance.
Molybdenum disulfide (MoS2) can as a aussichtsreich electrode for sodium-ion batteries (SIBs) considering multi-electron redox processes, which can meet the requirements of high discharge capacity and superb rate performance. However, Molybdenum disulfide tends to agglomerate during the preparation process, resulting in low mass energy density. In this paper, hollow rod shape MoS2@C composite is prepared by using hydrothermal method. The remarkable structure increases specific surface area and facilitates ion migration rate. The alternating superposition of MoS2 and carbon layer expand the material layer spacing, and maintain the structure stability sue to the van der Waal's force interaction in multilayer film. As expected, the MoS2@C shows significant electrochemical performance the first lap specific capacity can reach 1003.5 mAh/g, and Coulomb efficiency (CE) reaches 66.2%. The specific capacity is 401.2 mAh/g at 100th cycle, and the CE achieves 100%. This work demonstrates the feasibility of this synthesis strategy in preventing structural degradation of template materials. (C) 2022 Elsevier Ltd. All rights reserved.

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