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Electrografting of amino-TEMPO on graphene oxide and electrochemically reduced graphene oxide for electrocatalytic applications.

Yuan, Baiqing; Xu, Chunying; Zhang, Daojun; Zhang, Renchun; Su, Huimin; Guan, Pei; Nie, Jiajia; Fernandez, Carlos

Authors

Baiqing Yuan

Chunying Xu

Daojun Zhang

Renchun Zhang

Huimin Su

Pei Guan

Jiajia Nie



Abstract

4-Amino-2,2,6,6-tetramethyl-1-piperridine N-oxyl (4-amino-TEMPO), an electroactive nitroxide radical, was attached to the surface of graphene oxide (GO) and electrochemically reduced graphene oxide (ERGO) modified glassy carbon electrode by a simple, rapid and green electrografting method. The electroactive interfaces were analyzed by X-ray photoelectron spectroscopy (XPS) and cyclic voltammetry (CV). The calculated surface coverage for 4-amino-TEMPO is up to 1.55 × 10− 9 mol·cm− 2. The modified electroactive interface exhibited excellent electrocatalytic activity towards the electro-oxidation of reduced glutathione (GSH) and hydrogen peroxide (H2O2).

Citation

YUAN, B., XU, C., ZHANG, D., ZHANG, R., SU, H., GUAN, P., NIE, J., FERNANDEZ, C. 2017. Electrografting of amino-TEMPO on graphene oxide and electrochemically reduced graphene oxide for electrocatalytic applications. Electrochemistry communications [online], 81, pages 18-23. Available from: https://doi.org/10.1016/j.elecom.2017.05.016

Journal Article Type Article
Acceptance Date May 24, 2017
Online Publication Date May 25, 2017
Publication Date Aug 31, 2017
Deposit Date May 26, 2017
Publicly Available Date May 26, 2018
Journal Electrochemistry communications
Print ISSN 1388-2481
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 81
Pages 18-23
DOI https://doi.org/10.1016/j.elecom.2017.05.016
Keywords AminoTEMPO; Nitroxide radical; Electrochemically reduced graphene oxide; Reduced glutathione; Hydrogen peroxide
Public URL http://hdl.handle.net/10059/2336

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