Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/89924
Title: MoS2-coated vertical graphene nanosheet for high-performance rechargeable lithium-ion batteries and hydrogen production
Authors: Wang, Ye
Chen, Bo
Seo, Dong Han
Han, Zhao Jun
Wong, Jen It
Ostrikov, Kostya
Zhang, Hua
Yang, Hui Ying
Keywords: Graphene Nanosheet
Lithium-ion Batteries
Issue Date: 2016
Source: Wang, Y., Chen, B., Seo, D. H., Han, Z. J., Wong, J. I., Ostrikov, K., . . . Yang, H. Y. (2016). MoS2-coated vertical graphene nanosheet for high-performance rechargeable lithium-ion batteries and hydrogen production. NPG Asia Materials, 8, e268-. doi:10.1038/am.2016.44
Series/Report no.: NPG Asia Materials
Abstract: Hybrid nanostructures composed of vertical graphene nanosheet (VGNS) and MoS2 nano-leaves are synthesized by the chemical vapor deposition method followed by a solvothermal process. The unique three-dimensional nanostructures of MoS2/VGNS arranged in a vertically aligned manner can be easily constructed on various substrates, including Ni foam and graphite paper. Compared with MoS2/carbon black, MoS2/VGNS nanocomposites grown on Ni foam exhibit enhanced electrochemical performance as the anode material of lithium-ion batteries, delivering a specific capacity of 1277 mAh g−1 at a current density of 100 mA g−1 and a high first-cycle coulombic efficiency of 76.6%. Moreover, the MoS2/VGNS nanostructures also retain a capacity of 1109 mAh g−1 after 100 cycles at a current density of 200 mA g−1, suggesting excellent cycling stability. In addition, when the MoS2/VGNS nanocomposites grown on graphite paper are applied in the hydrogen evolution reaction, a small Tafel slope of 41.3 mV dec−1 and a large double-layer capacitance of 7.96 mF cm−2 are obtained, which are among the best values achievable by MoS2-based hybrid structures. These results demonstrate the potential applications of MoS2/VGNS hybrid materials for energy conversion and storage and may open up a new avenue for the development of vertically aligned, multifunctional nanoarchitectures.
URI: https://hdl.handle.net/10356/89924
http://hdl.handle.net/10220/46477
DOI: 10.1038/am.2016.44
Rights: © 2016 The Author(s) (Nature Publishing Group). This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:MSE Journal Articles

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