Journal
ELECTROCHEMISTRY COMMUNICATIONS
Volume 12, Issue 10, Pages 1375-1377Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.elecom.2010.07.024
Keywords
Graphene; Capacitance; Electrochemistry; Nanoribbons
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This article demonstrates that it is not always beneficial to exfoliate graphitic structures to single-layer graphene to achieve maximum electrochemical performance. Using electrochemical impedance spectroscopy, we show that multilayer graphene nanoribbons with cross sections of 100 x 100 nm provide larger capacitance (15.6 F/g) than do few-layer graphene nanoribbons (14.9 F/g) and far larger capacitance than single-layer graphene nanoribbons (10.9 F/g) with the same cross section. (C) 2010 Elsevier B.V. All rights reserved.
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