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  Synthesis and characterization of the thermally reduced graphene oxide in argon atmosphere, and its application to construct graphene paste electrode as a naptalam electrochemical sensor

Brycht, M., Leniart, A., Zavašnik, J., Nosal–Wiercińska, A., Wasiński, K., Półrolniczak, P., et al. (2018). Synthesis and characterization of the thermally reduced graphene oxide in argon atmosphere, and its application to construct graphene paste electrode as a naptalam electrochemical sensor. Analytica Chimica Acta, 1035, 22-31. doi:10.1016/j.aca.2018.06.057.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0001-E82D-8 Version Permalink: http://hdl.handle.net/21.11116/0000-0002-4A7B-2
Genre: Journal Article

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 Creators:
Brycht, Mariola1, Author              
Leniart, Andrzej1, Author              
Zavašnik, Janez2, 3, Author              
Nosal–Wiercińska, Agnieszka4, Author              
Wasiński, Krzysztof5, Author              
Półrolniczak, Paulina5, Author              
Skrzypek, Sławomira1, Author              
Kalcher, Kurt6, Author              
Affiliations:
1University of Lodz, Faculty of Chemistry, Department of Inorganic and Analytical Chemistry, Tamka 12, 91-403 Lodz, Poland, ou_persistent22              
2Centre for Electron Microscopy and Microanalysis, Jožef Stefan Institute, Jamova cesta 39, Ljubljana, Slovenia, ou_persistent22              
3Nano-/ Micromechanics of Materials, Structure and Nano-/ Micromechanics of Materials, Max-Planck-Institut für Eisenforschung GmbH, Max Planck Society, ou_1863401              
4Maria Skłodowska–Curie University, Faculty of Chemistry, M. Skłodowska–Curie Sq. 3, 20-031 Lublin, Poland, ou_persistent22              
5Institute of Non–Ferrous Metals Division in Poznań, Central Laboratory of Batteries and Cells, Forteczna 12, 61-362 Poznań, Poland, ou_persistent22              
6Karl–Franzens University, Institute of Chemistry – Analytical Chemistry, Universitätsplatz 1, A–8010 Graz, Austria, ou_persistent22              

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Free keywords: Argon; Atomic force microscopy; Cyclic voltammetry; Electrochemical electrodes; Electrochemical impedance spectroscopy; Electrochemical sensors; Electron diffraction; Fourier transform infrared spectroscopy; High resolution transmission electron microscopy; Reduction; Transmission electron microscopy, Carbon paste electrode; Fast electron transfer; Naptalam; Oxygen-containing functional groups; Paste electrodes; Reduced graphene oxides; Selected area electron diffraction; Synthesis and characterizations, Graphene
 Abstract: New insight into the preparation of sensitive carbon–based electrochemical electrode is provided by examining the properties of thermally reduced graphene oxide (TRGO). In this paper, TRGO was prepared by thermal reduction of graphene oxide (GO) in argon atmosphere, and characterized by Fourier transform infrared (FTIR) spectroscopy, transmission electron microscopy (TEM), selected area electron diffraction (SAED), and atomic force microscopy (AFM). Results showed that thermal reduction in argon was effective to remove oxygen-containing functional groups in GO, and graphene sheets were obtained. Furthermore, TRGO was used to prepare thermally reduced graphene oxide paste electrode (TRGOPE) which showed excellent conductivity and fast electron transfer kinetics confirmed by electrochemical impedance spectroscopy (EIS) and cyclic voltammetry (CV). The electrode was applied to determination of the pesticide naptalam (Nap) in square–wave voltammetric (SWV) mode. The corresponding current at approx. +1.0 V increased linearly with the Nap concentration within two linear dynamic ranges (LDR) of 0.1–1.0 μmol L−1 (LDR1) and 1.0–10.0 μmol L−1 (LDR2). The limits of detection (LOD) and quantification (LOQ) for Nap were calculated as 0.015 μmol L−1 and 0.051 μmol L−1, respectively. In comparison to the carbon paste electrode (CPE) the results showed that the TRGOPE possesses advantages in terms of linearity, sensitivity and detectability. © 2018 Elsevier B.V.

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Language(s): eng - English
 Dates: 2018-06-212018-12-04
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: Peer
 Identifiers: DOI: 10.1016/j.aca.2018.06.057
BibTex Citekey: Brycht2018
 Degree: -

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Title: Analytica Chimica Acta
Source Genre: Journal
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Publ. Info: Amsterdam : Elsevier
Pages: - Volume / Issue: 1035 Sequence Number: - Start / End Page: 22 - 31 Identifier: ISSN: 0003-2670
CoNE: https://pure.mpg.de/cone/journals/resource/954925379952