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Shape-engineerable composite fibers and their supercapacitor application

Title
Shape-engineerable composite fibers and their supercapacitor application
Author
김선정
Keywords
REDUCED GRAPHENE OXIDE; CARBON NANOTUBES; ENERGY-STORAGE; TEXTILES; RIBBONS
Issue Date
2016-01
Publisher
ROYAL SOC CHEMISTRY
Citation
NANOSCALE, v. 8, NO 4, Page. 1910-1914
Abstract
Due to excellent electrical and mechanical properties of carbon nano materials, it is of great interest to fabricate flexible, high conductive, and shape engineered carbon based fibers. As part of these approaches, hollow, twist, ribbon, and other various shapes of carbon based fibers have been researched for various functionality and application. In this paper, we suggest simple and effective method to control the fiber shape. We fabricate the three different shapes of hollow, twisted, and ribbon shaped fibers from wet spun giant graphene oxide (GGO)/single walled-nanotubes (SWNTs)/ poly(vinyl alcohol) (PVA) gels. Each shaped fibers exhibit different mechanical properties. The average specific strengthes of the hollow, twist, and ribbon fibers presented here are 126.5, 106.9, and 38.0 MPa while strain are 9.3, 13.5, and 5%, respectively. Especially, the ribbon fiber shows high electrical conductivity (524 +/- 64 S cm(-1)) and areal capacitance (2.38 mF cm(-2)).
URI
http://pubs.rsc.org/en/Content/ArticleLanding/2016/NR/C5NR07147J#!divAbstracthttp://hdl.handle.net/20.500.11754/30557
ISSN
2040-3364; 2040-3372
DOI
10.1039/c5nr07147j
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > ELECTRICAL AND BIOMEDICAL ENGINEERING(전기·생체공학부) > Articles
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