Issue 24, 2013
From the journal:

RSC Advances

A remarkably simple characterization of glassy carbon-supported films of graphite, graphene oxide, and chemically converted graphene using Fe(CN) 3−6/Fe(CN) 4−6 and O2 as redox probes†

Fábio Lima,‡a   Guilherme V. Fortunato‡a  and  Gilberto Maia*a  

* Corresponding authors

a Department of Chemistry, Universidade Federal de Mato Grosso do Sul, Caixa postal 549, Campo Grande, MS 79070-900, Brazil
E-mail: gilberto.maia@ufms.br
Fax: +55 67 3345-3552
Tel: +55 67 3345-3551

Abstract

This study investigated the behavior of thin films of graphene oxide (GO) and chemically converted graphene (CCG) on a glassy carbon surface in the presence of two redox probes (Fe(CN)3−6/Fe(CN)4−6 and O2), employing cyclic voltammetry, electrochemical impedance spectroscopy, and hydrodynamic voltammetry as a simple procedure for characterizing these films. The feasibility of using these electrochemical techniques for this purpose opens up the possibility of applying them to biosensors and electrocatalysts using surface-supported GO and CCG materials. Raman spectroscopy, Fourier transform infrared spectroscopy, thermogravimetric analysis, X-ray photoelectron spectroscopy, and scanning electron microscopy were employed to characterize GO and CCG.

Graphical abstract: A remarkably simple characterization of glassy carbon-supported films of graphite, graphene oxide, and chemically converted graphene using Fe(CN)3−6/Fe(CN)4−6 and O2 as redox probes

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Article information

DOI
https://doi.org/10.1039/C3RA40412A
Article type
Paper
Submitted
24 Jan 2013
Accepted
22 Apr 2013
First published
23 Apr 2013

RSC Adv., 2013,3, 9550-9560

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A remarkably simple characterization of glassy carbon-supported films of graphite, graphene oxide, and chemically converted graphene using Fe(CN)3−6/Fe(CN)4−6 and O2 as redox probes

F. Lima, G. V. Fortunato and G. Maia, RSC Adv., 2013, 3, 9550 DOI: 10.1039/C3RA40412A

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