The 3D Co3O4/graphene/nickel foam electrode with enhanced electrochemical performance for supercapacitors

Title
The 3D Co3O4/graphene/nickel foam electrode with enhanced electrochemical performance for supercapacitors
Author(s)
심재진웬방호아
Keywords
SURFACE
Issue Date
201501
Publisher
ELSEVIER SCIENCE BV
Citation
MATERIALS LETTERS, v.139, pp.377 - 381
Abstract
Nickel foam was decorated with graphene and cobalt oxide (Co3O4) sheels by chemical vapor deposition and electrochemical deposition, respectively. After coated by a thin graphene layer, the nickel foam was decorated with Co3O4 nanoparticles, ranging in size from 3 to 5 urn. The resulted electrode allowed the rapid transportation of electrons and ions with a large electroactive surface area, and showed excellent structural stability. The specific capacitance of the electrode was as high as 1126 F g(-1) at a high current density of 7.5 A g(-1) in KOH 3 M electrolyte, highlighting its promising applications as a high performance electrode for supercapacitors. (C) 2014 Elsevier B.V. All rights reserved.
URI
http://hdl.handle.net/YU.REPOSITORY/33734http://dx.doi.org/10.1016/j.matlet.2014.10.128
ISSN
0167-577X
Appears in Collections:
공과대학 > 화학공학부 > Articles
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