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Graphenated carbon nanotubes for enhanced electrochemical double layer capacitor performance

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Date
2011-10-31
Authors
Stoner, Brian R
Raut, Akshay S
Brown, Billyde
Parker, Charles B
Glass, Jeffrey T
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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 article
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https://hdl.handle.net/10161/10603
Published Version (Please cite this version)
10.1063/1.3657514
Publication 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.
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Scholars@Duke

Glass

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
Stoner

Brian R. Stoner

Research Professor in the Department of Electrical and Computer Engineering
Alphabetical list of authors with Scholars@Duke profiles.
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