Boopathi, S. and Narayanan, T.N. and Senthilkumar, S. (2014) Improved heterogeneous electron transfer kinetics of fluorinated graphene derivatives. Nanoscale, 6. pp. 10140-10146. ISSN 2040-3364

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Abstract

Though graphitic carbons are commercially available for various electrochemical processes, their performance is limited in terms of various electrochemical activities. Recent experiments on layered carbon materials, such as graphene, demonstrated an augmented performance of these systems in all electrochemical activities due to their unique electronic properties, enhanced surface area, structure and chemical stabilities. Moreover, flexibility in controlling electronic, as well as electrochemical activities by heteroatom doping brings further leverage in their practical use. Here, we study the electron transfer kinetics of fluorinated graphene derivatives, known as fluorinated graphene oxide (FGO) and its reduced form, RFGO. Enhanced electron transfer kinetics (heterogeneous electron transfer (HET)) is observed from these fluorinated systems in comparison to their undoped systems such as graphene oxide (GO) and reduced GO. A detailed study has been conducted using standard redox probes and biomolecules revealing the enhanced electro-catalytic activities of FGO and RFGO, and electron transfer rates are simulated theoretically. This study reveals that fluorine not only induces defects in graphitic lattice leading to an enhanced HET process but also can modify the electronic structure of graphene surface

Item Type:	Article
Uncontrolled Keywords:	Electron transfer; graphene
Subjects:	Functional Materials Nanotechnology Electrochemical Materials Science
Divisions:	UNSPECIFIED
Depositing User:	Dr. N Meyyappan
Date Deposited:	15 May 2015 09:27
Last Modified:	15 May 2015 09:27
URI:	http://cecri.csircentral.net/id/eprint/3147

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