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Graphenated carbon nanotubes for enhanced electrochemical double layer capacitor performance

dc.contributor.author Stoner, BR
dc.contributor.author Raut, AS
dc.contributor.author Brown, B
dc.contributor.author Parker, CB
dc.contributor.author Glass, JT
dc.date.accessioned 2015-09-11T17:45:56Z
dc.date.issued 2011-10-31
dc.identifier.issn 0003-6951
dc.identifier.uri http://hdl.handle.net/10161/10603
dc.description.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.
dc.relation.ispartof Applied Physics Letters
dc.relation.isversionof 10.1063/1.3657514
dc.title Graphenated carbon nanotubes for enhanced electrochemical double layer capacitor performance
dc.type Journal article
pubs.issue 18
pubs.organisational-group Duke
pubs.organisational-group Duke Science & Society
pubs.organisational-group Electrical and Computer Engineering
pubs.organisational-group Initiatives
pubs.organisational-group Institutes and Provost's Academic Units
pubs.organisational-group Pratt School of Engineering
pubs.publication-status Published
pubs.volume 99


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