Vineesh, T.V. and Alwarappan, S. and Narayanan, T.N. (2015) The improved electrochemical performance of cross-linked 3D graphene nanoribbon monolith electrodes. Nanoscale, 7. pp. 6504-6509. ISSN 2040-3364

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Abstract

Technical advancement in the field of ultra-small sensors and devices demands the development of novel micro- or nano-based architectures. Here we report the design and assembly of cross-linked three dimensional graphene nanoribbons (3D GNRs) using solution based covalent binding of individual 2D GNRs and demonstrate its electrochemical application as a 3D electrode. The enhanced performance of 3D GNRs over individual 2D GNRs is established using standard redox probes – [Ru(NH3)6]3+/2+, [Fe(CN)6]3−/4− and important bio-analytes – dopamine and ascorbic acid. 3D GNRs are found to have high double layer capacitance (2482 μF cm−2) and faster electron transfer kinetics; their exceptional electrocatalytic activity towards the oxygen reduction reaction is indicative of their potential over a wide range of electrochemical applications. Moreover, this study opens a new platform for the design of novel point-of-care devices and electrodes for energy devices

Item Type:	Article
Uncontrolled Keywords:	graphene; nanoribbon; electrodes
Subjects:	Electrochemical Sensors Nanotechnology Electrochemical Materials Science
Divisions:	UNSPECIFIED
Depositing User:	Dr. N Meyyappan
Date Deposited:	15 May 2015 09:28
Last Modified:	15 May 2015 09:28
URI:	http://cecri.csircentral.net/id/eprint/3146

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