• 文献标题:   Integrated 3D porous C-MoS2/nitrogen-doped graphene electrode for high capacity and prolonged stability lithium storage
  • 文献类型:   Article
  • 作  者:   XIE D, TANG WJ, XIA XH, WANG DH, ZHOU D, SHI F, WANG XL, GU CD, TU JP
  • 作者关键词:   molybdenum disulfide, porous graphene, nitrogen doping, storage mechanism, lithium ion battery
  • 出版物名称:   JOURNAL OF POWER SOURCES
  • ISSN:   0378-7753 EI 1873-2755
  • 通讯作者地址:   Zhejiang Univ
  • 被引频次:   74
  • DOI:   10.1016/j.jpowsour.2015.07.074
  • 出版年:   2015

▎ 摘  要

Scrupulous design and fabrication of advanced anode materials are of great importance for developing high-performance lithium ion batteries. Herein, we report a facile strategy for construction of freestanding and free-binder 3D porous carbon coated MoS2/nitrogen-doped graphene (C-MoS2/N-G) integrated electrode via a hydrothermal-induced self-assembly process. The preformed carbon coated MoS2 is strongly anchored on the porous nitrogen-doped graphene aerogel architecture. As an anode for lithium ion batteries, the C-MoS2/N-G electrode delivers a high first discharge capacity of 1600 mAh and maintains 900 mAh g(-1) after 500 cycles at a current density of 200 inA g(-1). Impressively, superior high-rate capability is achieved for the C-MoS2/N-G with a reversible capacity of 500 mAh g(-1) at a high current density of 4000 mA g(-1). Furthermore, the lithium storage mechanism of the obtained integrated electrode is investigated by ex-situ X-ray photoelectron spectroscopy and transmission electron microscopy in detail. (C) 2015 Elsevier B.V. All rights reserved.