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作者:

Hu, Peng (Hu, Peng.) | Jia, Zhiyuan (Jia, Zhiyuan.) | Wang, Yue (Wang, Yue.) | Zhou, Qinqin (Zhou, Qinqin.) | Liu, Ning (Liu, Ning.) | Li, Fan (Li, Fan.) (学者:李钒) | Wang, Jinshu (Wang, Jinshu.) (学者:王金淑)

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摘要:

Constructing hybrid heterostructures of transition-metal dichalcogenides is an effective strategy to enhance their electrochemical performance and stability as anode materials in lithium-ion batteries. In this work, a facile in situ strategy was developed to engineer lattice-mismatched MoS2-ZnS together with C into hierarchical nanostructures. The three-dimensional architecture was constructed using few-layer MoS2 nanosheets as the building block, and ZnS and C coexisted among the MoS2 nanosheets with a mesoporous structure. By the synergy effect of integrated interfaces and hierarchical configuration, as-formed heterostructures exhibit increased conductivity, enhanced Car transfer efficiency, and retarded volume expansion during the electrochemical process. All of these contribute to the greatly increased lithium storage capability and well-preserved stability. Impressively, as-obtained materials exhibit a high lithium storage capacity of 961.9 mA g(-1) at 100 mA g(-1) after 100 cycles (about 3.1 times higher than pristine MoS2 after 35 cycles), good rate retention, and superior cycling stability with 9.5% decay. Therefore, the proposed strategy provides a favorable direction for developing high-activity and low-cost electrode materials with potential applications in electrochemical fields.

关键词:

anode material in situ synthesis interface engineering lithium-ion batteries MoS2/ZnS/C

作者机构:

  • [ 1 ] [Hu, Peng]Beijing Univ Technol, Key Lab Adv Funct Mat, Educ Minist China, Coll Mat Sci & Engn, Beijing 100124, Peoples R China
  • [ 2 ] [Zhou, Qinqin]Beijing Univ Technol, Key Lab Adv Funct Mat, Educ Minist China, Coll Mat Sci & Engn, Beijing 100124, Peoples R China
  • [ 3 ] [Wang, Jinshu]Beijing Univ Technol, Key Lab Adv Funct Mat, Educ Minist China, Coll Mat Sci & Engn, Beijing 100124, Peoples R China
  • [ 4 ] [Jia, Zhiyuan]Shenyang Res Inst Chem Ind, Shenyang 110021, Liaoning, Peoples R China
  • [ 5 ] [Wang, Yue]Beijing Univ Technol, Coll Environm & Energy Engn, Beijing 100124, Peoples R China
  • [ 6 ] [Liu, Ning]Beijing Univ Technol, Coll Environm & Energy Engn, Beijing 100124, Peoples R China
  • [ 7 ] [Li, Fan]Beijing Univ Technol, Coll Environm & Energy Engn, Beijing 100124, Peoples R China

通讯作者信息:

  • 李钒 王金淑

    [Wang, Jinshu]Beijing Univ Technol, Key Lab Adv Funct Mat, Educ Minist China, Coll Mat Sci & Engn, Beijing 100124, Peoples R China;;[Li, Fan]Beijing Univ Technol, Coll Environm & Energy Engn, Beijing 100124, Peoples R China

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来源 :

ACS APPLIED ENERGY MATERIALS

ISSN: 2574-0962

年份: 2020

期: 8

卷: 3

页码: 7856-7864

6 . 4 0 0

JCR@2022

被引次数:

WoS核心集被引频次: 15

SCOPUS被引频次: 15

ESI高被引论文在榜: 0 展开所有

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