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3D Conductive Network Supported Monolithic Molybdenum Disulfide Nanosheets for High‐Performance Lithium Storage Applications
Author(s) -
Liu Mingkai,
Liu Yuqing,
Tang Buzheng,
Zhang Peng,
Yan Yan,
Liu Tianxi
Publication year - 2017
Publication title -
advanced materials interfaces
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.671
H-Index - 65
ISSN - 2196-7350
DOI - 10.1002/admi.201601228
Subject(s) - materials science , molybdenum disulfide , nanocomposite , anode , carbon nanotube , graphene , lithium (medication) , nanotechnology , electrochemistry , electrical conductor , electrode , composite material , medicine , chemistry , endocrinology
Hierarchical 3D graphene nanoribbons/carbon nanotubes–molybdenum disulfide (GR/CNT‐MoS 2 ) nanocomposites have been facilely and controllably prepared. The GR/CNT matrix, which is prepared by partial unzipping of multiwalled CNTs, possesses good conductive networks by bridging graphene nanoribbons on different CNTs. MoS 2 with monolithic morphologies is anchored on the GR/CNT conductive networks, achieving the formation of hierarchical GR/CNT‐MoS 2 nanocomposites. As a result of the good dispersion of MoS 2 , a large specific surface area (238 m 2 g −1 ) of GR/CNT‐MoS 2 nanocomposite has been achieved. Excellent electrochemical performance including high specific capacity (1245 mA h g −1 ) and good cycling stability (90.9% capacity retention after 200 cycles) of the GR/CNT‐MoS 2 nanocomposites is achieved due to the full exposure of the active sites of MoS 2 nanoflakes, and high electron transport ability of the GR/CNT substrate. These novel GR/CNT‐MoS 2 nanocomposites show promising application in lithium ion batteries, and further provide a new way to design and develop new anode materials.