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MoS2 nanosheets inl...
MoS2 nanosheets inlaid in 3D fibrous N-doped carbon spheres for lithium-ion batteries and electrocatalytic hydrogen evolution reaction
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- Wang, Xin (författare)
- Shanghai Univ, Peoples R China
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- Fei, Siming (författare)
- Shanghai Univ, Peoples R China
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- Huang, Shoushuang (författare)
- Shanghai Univ, Peoples R China
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- Wu, Chenghao (författare)
- Shanghai Univ, Peoples R China
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- Zhao, Junru (författare)
- Shanghai Univ, Peoples R China
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- Chen, Zhiwen (författare)
- Shanghai Univ, Peoples R China
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- Uvdal, Kajsa (författare)
- Linköpings universitet,Molekylär ytfysik och nanovetenskap,Tekniska fakulteten
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- Hu, Zhang-Jun (författare)
- Linköpings universitet,Molekylär ytfysik och nanovetenskap,Tekniska fakulteten,Shanghai Univ, Peoples R China
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(creator_code:org_t)
- PERGAMON-ELSEVIER SCIENCE LTD, 2019
- 2019
- Engelska.
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Ingår i: Carbon. - : PERGAMON-ELSEVIER SCIENCE LTD. - 0008-6223 .- 1873-3891. ; 150, s. 363-370
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Molybdenum disulfide (MoS2) has received considerable interests in rechargeable lithium-ion batteries (LIBs) and hydrogen evolution reaction (HER). To overcome the instinct limitations of pristine MoS2, such as low conductivity, poor cyclic stability and rate performance, hybrid carbon-MoS2 composites are often practically applied to improve the electrochemical properties. Herein, a facile, scalable, and durable synthesis method is innovated to inlay MoS2 nanosheets into three-dimensional (3D) fibrous nitrogen-doped carbon spheres (FNCs) for achieving 3D FNC-MoS2 composites. The free-standing 3D FNC-MoS2 nanocomposites can be used as the anode for LIBs. It exhibits a high reversible capacity of similar to 700 mA h g(-1), and nearly no fading of the capacity nearly after 400 cycles at a current density of 1.2 A g(-1). Meanwhile, FNC-MoS2 exhibits superior HER activity accompanied by a small overpotential of around 194 mV in 0.5 M H2SO4. Tafel slopes are estimated to be 54 mV dec(-1), and the current density of FNC-MoS2 decreases very slightly compared to the initial one after 1000 cycles. We are convinced that the enhanced Li+ storage performance and HER activity are attributed to the synergistic effects and structural advantages, such as higher specific surface, larger pore volume, radical fibrous structure, and chemical/mechanical stability, achieved from the unique architectures of the title material. (C) 2019 Elsevier Ltd. All rights reserved.
Ämnesord
- NATURVETENSKAP -- Kemi -- Materialkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Materials Chemistry (hsv//eng)
Nyckelord
- MoS2; N-doped fibrous carbon; Lithium-ion batteries; Hydrogen evolution reaction
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- art (ämneskategori)
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