• 文献标题:   Unique three-dimensional hierarchical heterogeneous MoS2/graphene structures as a high-performance anode material for lithium-ion batteries
  • 文献类型:   Article
  • 作  者:   LONG F, CHEN Y, WU CH, WANG JL, MO SY, ZOU ZG, ZHENG GY
  • 作者关键词:   molybdenum disulfide, graphene, spaceconfined, rate performance, liion batterie
  • 出版物名称:   IONICS
  • ISSN:   0947-7047 EI 1862-0760
  • 通讯作者地址:  
  • 被引频次:   4
  • DOI:   10.1007/s11581-021-03936-y EA MAR 2021
  • 出版年:   2021

▎ 摘  要

A unique MoS2/graphene composite (MoS2/GrF) was synthesized via a facile hydrothermal method. XRD, FESEM, EDS, TEM, HRTEM, XPS, and BET analyses were performed to characterize the as-synthesized samples. The samples were demonstrated to present interesting uniform three-dimensional hierarchical heterogeneous structures where MoS2 microspheres (with an average diameter of 750 nm) penetrated the graphene layer. By the "space-confined" effect, the (002) plane of MoS2 is inhibited when grown in the interlayer of GO, which increases the interlayer spacing and improves the rate performance of the electrode. Moreover, MoS2 that grows between the graphene layers can form a good contact, reducing the contact resistance. As an anode material for lithium-ion batteries, the MoS2/GrF electrode exhibited an outstanding reversible capacity (1510 mAh g(-1) at 100 mA g(-1) after 200 cycles) and excellent rate performance (similar to 990 mAh g(-1) at 1000 mA g(-1)).