Journal
MATERIALS & DESIGN
Volume 189, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.matdes.2020.108503
Keywords
Electrospinning; Carbon nanofibers; TiO2; MoS2; Electrode materials
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Funding
- National Natural Science Foundation of China [51203068]
- Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD)
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Design and synthesis of unique core-shell heterostructures for flexible electrode materials have recently attracted intensive attention. In this work, 3D flexible carbon nanofibers (CNFs)/TiO2@MoS2 core-shell hierarchical nanostructures were prepared on the surface of CNFs by combining electrospinning, hydrothermal method and in situ growth. We investigated the behavior of CNFs/TiO2@MoS2 a s electrode material, which showed desirable electrochemical performance in terms of ultrahigh specific capacitance and long-term stability. The CNFs/TiO2@MoS2 exhibited ultrahigh specific capacitance (510.4 F g(-1) at 0.5 A g(-1)) superior to CNFs/TiO2 (53.8 F g(-1) at 0.5 A g(-1)) and prominent rate capability at high scan rates. Specifically, the capacitance retention of CNFs/TiO2@ MoS2 remained about 95.7% even after 3000 cycles at 3.5 A g(-1), which indicates considerable cycling stability. Hence, this work presents a novel strategy for the construction of cost-effective, flexible and high-performance 3D electrode materials, and confers in-depth understanding of nanocomposites with relatively light quality. The fabricated nanocomposite can have attractive application prospects in energy storage systems and can even be extended to wearable and portable energy storage equipment. (C) 2020 The Authors. Published by Elsevier Ltd.
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