Multi-channel-contained few-layered MoSe2 nanosheet/N-doped carbon hybrid nanofibers prepared using diethylenetriamine as anodes for high-performance sodium-ion batteries
- Authors
- Jeong, Sun Young; Ghosh, Subrata; Kim, Jae-Kwang; Kang, Dong-Won; Jeong, Sang Mun; Kang, Yun Chan; Cho, Jung Sang
- Issue Date
- 25-7월-2019
- Publisher
- ELSEVIER SCIENCE INC
- Keywords
- Molybdenum diselenide; Sodium ion batteries; Anodes; Multi-channel; Nanofibers; Electrospinning
- Citation
- JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY, v.75, pp.100 - 107
- Indexed
- SCIE
SCOPUS
KCI
- Journal Title
- JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
- Volume
- 75
- Start Page
- 100
- End Page
- 107
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/64058
- DOI
- 10.1016/j.jiec.2019.03.007
- ISSN
- 1226-086X
- Abstract
- A facile new strategy for the synthesis of multi-channel-contained N-doped carbon nanofibers composed of few-layered MoSe2 nanosheets (denoted as MC-NCNF/MoSe2) was introduced and the composite was demonstrated as an anode material for sodium-ion batteries. This was the first time that diethylenetriamine was introduced as a pore generator in the electrospinning process and played a key role in generating multi-channels in the structure by phase-separation from the molybdenum salt and subsequent volatilization without any additional process. Polyvinylpyrrolidone was used as a carbon precursor and played the role of a N-doping source for the carbon matrix. MC-NCNF/MoSe2 achieved a high reversible discharge capacity of 386 mA h g(-1) at a current density of 0.5 A g(-1) after the 300th cycle and superior rate capability of 285 mA h g(-1) at 10.0 A g(-1). The multi-channeled structure of MC-NCNF/MoSe2 facilitated effective Na+ and electron diffusion during repeated discharge/charge processes and accommodated the huge volume expansion of the MoSe2 nanosheets induced by electrochemical reaction of the Na+ ion. (C) 2019 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
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Collections - College of Engineering > Department of Materials Science and Engineering > 1. Journal Articles
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