The improved electrochemical performance of cross-linked 3D graphene nanoribbon monolith electrodes

Thazhe Veettil Vineesh, Subbiah Alwarappan, Tharangattu N. Narayanan

Research output: Contribution to journalArticlepeer-review

29 Scopus citations


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.

Original languageEnglish
Pages (from-to)6504-6509
Number of pages6
Issue number15
StatePublished - 21 Apr 2015
Externally publishedYes

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© The Royal Society of Chemistry.


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