Vertically aligned ultrathin MoS2 nanosheets grown on graphene-wrapped hollow carbon microtubes derived from loofah sponge as advanced anodes for highly reversible lithium storage
In: Electrochimica Acta, Jg. 296 (2019-02-01), S. 989-998
Online
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Zugriff:
Using low cost, environment-friendly, and sustainable biomass is a unique approach to the preparation carbon-based composites for lithium ion batteries. In our research, hollow, derived microtubes (HMD) were fabricated from graphene/loofah sponge. Each microtube was wrapped with graphene, resulting in conductivity improvement, and facilitated easily controlled growth of ultra-thin MoS2 nanosheets. The method employed a simple process of soaking the HMD in graphene oxide (GO) dispersion liquid, and subsequent carbonization and activation of the HMD/rGO. When ultrathin MoS2 nanosheets were vertically and uniformly grown on the surface of the HMD/rGO, via the hydrothermal method, the HMD/rGO/MoS2 composite was obtained, and exhibited reversible lithium storage capacity of 838.2 mAh g−1 at a current density of 0.2 A g−1 after 200 cycles. This excellent electrochemical performance could be due to the high conductivity of HMD/rGO, a synergistic effect between HMD/rGO and MoS2 nanosheets, a reasonable structural design, and the high theoretical specific capacity of MoS2. Such a structure not only provides a novel, high-quality carbon template/matrix from cheap loofah sponge, but also provides a new way to design sustainable electrodes for electrochemical energy storage, and makes economical, multifunctional, carbon-based hybrids available for other applications.
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Vertically aligned ultrathin MoS2 nanosheets grown on graphene-wrapped hollow carbon microtubes derived from loofah sponge as advanced anodes for highly reversible lithium storage
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Autor/in / Beteiligte Person: | Guo, Yan ; Luo, Rongjie ; Liu, Xianming ; Zhang, Yingge ; Wang, Yangbo ; Wang, Yange ; Luo, Yongsong ; Jang Kyo Kim ; Lu, Yang ; Zhang, Deyang |
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Zeitschrift: | Electrochimica Acta, Jg. 296 (2019-02-01), S. 989-998 |
Veröffentlichung: | Elsevier BV, 2019 |
Medientyp: | unknown |
ISSN: | 0013-4686 (print) |
DOI: | 10.1016/j.electacta.2018.11.148 |
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