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Few-layer MoS2 Nanosheets/Nitrogen-doped Graphene 3D Aerogel as a High Performance and Long-term Stability Supercapacitor Electrode

Abstract

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 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 10,000 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 material.

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Publication details

The article was received on 12 Jul 2018, accepted on 10 Feb 2019 and first published on 11 Feb 2019


Article type: Paper
DOI: 10.1039/C8NR05620J
Citation: Nanoscale, 2019, Accepted Manuscript

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    Few-layer MoS2 Nanosheets/Nitrogen-doped Graphene 3D Aerogel as a High Performance and Long-term Stability Supercapacitor Electrode

    Y. Yuan, H. Lv, Q. Xu, H. Liu and Y. Wang, Nanoscale, 2019, Accepted Manuscript , DOI: 10.1039/C8NR05620J

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