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Stackable, three dimensional carbon-metal oxide composite for high performance supercapacitors

Title
Stackable, three dimensional carbon-metal oxide composite for high performance supercapacitors
Author
백운규
Keywords
SOLID-STATE SUPERCAPACITORS; REDUCED GRAPHENE OXIDE; NICKEL-OXIDE; ASYMMETRIC SUPERCAPACITORS; NANOSHEET ARRAYS; ELECTRODES; POLYPYRROLE; NANOFLAKES; HYBRID; ROUTE
Issue Date
2015-09
Publisher
ROYAL SOC CHEMISTRY
Citation
JOURNAL OF MATERIALS CHEMISTRY A, v. 3, NO 41, Page. 20459-20464
Abstract
We report a stackable all-solid-state supercapacitor based on three dimensional PPy-NiO/RGO-CNT electrodes. The electrodes were prepared by growing NiO nanowalls (NWs) on both sides of a freestanding RGO-CNT film with the hydrothermal method, followed by coatingwith conductive polypyrrole. The double-sided architecture of the NiO NWs on a carbon-based current collector suggests that the novel approach addresses the issue of low areal capacitance in supercapacitors. Furthermore, conductive polypyrrole renders fast electron transport through the two-dimensional structure of NiO NWs. With our 3D-designed electrodes, we successfully fabricated a stackable all-solid-state supercapacitor and thus achieved a high areal capacitance of 1948 mF cm(-2).
URI
http://pubs.rsc.org/en/Content/ArticleLanding/2015/TA/C5TA06266G#!divAbstracthttp://hdl.handle.net/20.500.11754/27480
ISSN
2050-7488; 2050-7496
DOI
10.1039/c5ta06266g
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > ENERGY ENGINEERING(에너지공학과) > Articles
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