• 文献标题:   Monolayer MoS2-Graphene Hybrid Aerogels with Controllable Porosity for Lithium-Ion Batteries with High Reversible Capacity
  • 文献类型:   Article
  • 作  者:   JIANG LF, LIN BH, LI XM, SONG XF, XIA H, LI L, ZENG HB
  • 作者关键词:   monolayer mos2, graphene, aerogel, porosity, lithiumion batterie
  • 出版物名称:   ACS APPLIED MATERIALS INTERFACES
  • ISSN:   1944-8244 EI 1944-8252
  • 通讯作者地址:   Nanjing Univ Sci Technol
  • 被引频次:   117
  • DOI:   10.1021/acsami.5b10692
  • 出版年:   2016

▎ 摘  要

Monolayer MoS2 nanosheets (NSs) are promising anode materials for lithium -ion batteries because all redox reactions take place at the surface without lithium ion diffusion limit. However, the expanded band gap of monolayer MoS2 NSs (similar to 1.8 eV) compared to their bulk counterparts eV) and restacking tendency due to the van der Waals forces result in poor electron transfer and loss of the structure advantage. Here, a facile approach is developed to fabricate the MoS2-graphene aerogels comprising controlled three-dimensional (3D) porous architectures constructed by interconnected monolayer MoS2-graphene hybrid NSs. The robust 3D architectures combining with the monolayer feature of the hybrid NSs not only prevent the MoS2 and graphene NSs from restacking, but also enable fast electrode kinetics due to the surface reaction mechanism and highly conductive graphene matrix. As a consequence, the 3D porous monolayer MoS2-graphene composite aerogels exhibit a large reversible capacity up to 1200 mAh g(-1) as well as outstanding cycling stability and rate performance, making them promising as advanced anode materials for lithium-ion batteries.