Graphenated carbon nanotubes for enhanced electrochemical double layer capacitor performance
Abstract
This letter reports on nucleation and growth of graphene foliates protruding from
the sidewalls of aligned carbon nanotubes (CNTs) and their impact on the electrochemical
double-layer capacitance. Arrays of CNTs were grown for different time intervals,
resulting in an increasing density of graphene foliates with deposition time. The
samples were characterized using electrochemical impedance spectroscopy, scanning
electron microscopy, and transmission electron microscopy. Both low and high frequency
capacitance increased with increasing foliate density. A microstructural classification
is proposed to explain the role of graphene edges, three-dimensional organization,
and other features of hybrid carbon systems on their electrochemical properties. ©
2011 American Institute of Physics.
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Journal articlePermalink
https://hdl.handle.net/10161/10603Published Version (Please cite this version)
10.1063/1.3657514Publication Info
Stoner, Brian R; Raut, Akshay S; Brown, Billyde; Parker, Charles B; & Glass, Jeffrey
T (2011). Graphenated carbon nanotubes for enhanced electrochemical double layer capacitor performance.
Applied Physics Letters, 99(18). 10.1063/1.3657514. Retrieved from https://hdl.handle.net/10161/10603.This is constructed from limited available data and may be imprecise. To cite this
article, please review & use the official citation provided by the journal.
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Show full item recordScholars@Duke
Jeffrey Glass
Professor of Electrical and Computer Engineering
Jeffrey T. Glass is a Professor in the Department of Electrical and Computer Engineering
and the Sr. Associate Dean for Education and Learning Innovation. He holds the Hogg
Family endowed chair in Engineering Management and Entrepreneurship. Formerly, he
was the Co-Director of The Institute for the Integration of Management and Engineering
at Case Western Reserve University (CWRU) and held the Joseph F. Toot, Jr. endowed
chair in the Case School of Engineering. Prior to these university app
Charles Parker
Senior Laboratory Administrator
Brian R. Stoner
Research Professor in the Department of Electrical and Computer Engineering
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