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Flexible and freestanding core-shell SnOx/carbon nanofiber mats for high-performance supercapacitors

Authors
Samuel, EdmundJoshi, BhavanaJo, Hong SeokKim, Yong IlSwihart, Mark T.Yun, Je MoonKim, Kwang HoYoon, Sam S.
Issue Date
25-12월-2017
Publisher
ELSEVIER SCIENCE SA
Keywords
Electrospinning; SnOx/CNF; core-shell; Flexible; Supercapacitor
Citation
JOURNAL OF ALLOYS AND COMPOUNDS, v.728, pp.1362 - 1371
Indexed
SCIE
SCOPUS
Journal Title
JOURNAL OF ALLOYS AND COMPOUNDS
Volume
728
Start Page
1362
End Page
1371
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/81131
DOI
10.1016/j.jallcom.2017.09.103
ISSN
0925-8388
Abstract
We demonstrate the fabrication of core-shell SnOx/carbon nanofiber (CNF) composite mats via single-nozzle one-step electrospinning for use as flexible freestanding electrodes in supercapacitors. The freestanding and flexible nature of the composites is essential for their use in lightweight, portable, and foldable electronic devices and eliminates the need for a separate current collector. We fully characterized the structural and morphological properties of the SnOx/CNF mats and optimized the SnOx to CNF precursor ratio. The optimized SnOx/CNF-based symmetric supercapacitor exhibited a capacitance of 289 F.g(-1) at a scan rate of 10 mV.s(-1). Moreover, it retained more than 88% of its initial capacitance after 5000 cycles, highlighting the long-term stability of supercapacitors based on these SnOx/CNF mats. (C) 2017 Elsevier B.V. All rights reserved.
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공과대학 (기계공학부)
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