• 文献标题:   A few-layered MoS2 nanosheets/nitrogen-doped graphene 3D aerogel as a high performance and long-term stability supercapacitor electrode
  • 文献类型:   Article
  • 作  者:   YUAN Y, LV HP, XU QJ, LIU HM, WANG YG
  • 作者关键词:  
  • 出版物名称:   NANOSCALE
  • ISSN:   2040-3364 EI 2040-3372
  • 通讯作者地址:   Shanghai Univ Elect Power
  • 被引频次:   21
  • DOI:   10.1039/c8nr05620j
  • 出版年:   2019

▎ 摘  要

Typical advanced transition-metal dichalcogenides, in particular molybdenum disulfide (MoS2), have recently attracted intense interest owing to their unique properties and tremendous application prospects in electrochemical energy storage. However, the limited re-stacking of atomic layers by van der Waals forces restrictedly affects their electrochemical characteristics. Herein, the construction of three-dimensional (3D) architectures via 2D mono- or few-layered MoS2 nanosheets and nitrogen-doped graphene aerogels has been employed to obtain and retain conductive networks; as a result, large surface areas and high electrical conductivities were achieved. When used as a supercapacitor electrode material, this hybrid aerogel exhibits an excellent specific capacitance of 532 F g(-1) at a current density of 1 A g(-1) and a superior cycling stability of 93.6% capacitance retention after 10000 cycles at 10 A g(-1), which is significantly higher than those of MoS2 nanosheets and nitrogen-doped graphene aerogels alone. Therefore, it is believed that these 3D hybrid aerogels of MoS2 nanosheets/nitrogen-doped graphene (3D MoS2/N-GAs) have great potential to become promising candidates for supercapacitor electrode materials.