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Type: Artigo
Title: Modulation of electrochemical properties of graphene oxide by photochemical reduction using UV‐light emitting diodes
Author: dos Santos, Pamyla Layene
Timm, Ronaldo Adriano
Kubota, Lauro Tatsuo
Bonacin, Juliano Alves
Abstract: Electrodes that were chemically modified by reduced graphene oxide have properties that dependent on the synergy between the level of restoration of the sp(2) structure and the functional groups. Because of this, the challenge in the chemistry of graphene is how to reach the equilibrium between electrical conductivity and specific interactions between the surface and molecular targets and how to tune it. In this work, a simple and effective method to modulate the electrochemical properties of reduced graphene oxide by photoreduction using UV-light emitting diodes is reported. Moreover, we also succeeded in controlling the percentage of oxygenated groups and electrical conductivity, which reflects directly on the electrochemical behavior. The influence of the reduction extent is explored using photochemically reduced graphene oxide generated as a potential sensor for trace detection of dopamine, proving the efficiency and importance of this tunable reduction approach for device-design development, mainly for the synergistic effect among electrical conductivity, pi-interaction and the amount of oxygenate functional groups
Subject: Grafeno
Country: Alemanha
Editor: Wiley
Rights: Fechado
Identifier DOI: 10.1002/slct.201600121
Date Issue: 2016
Appears in Collections:IQ - Artigos e Outros Documentos

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