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Copper(II) Oxide Nanoparticles Embedded within a PEDOT Matrix for Hydrogen Peroxide Electrochemical Sensing †

The aim of this study is the preparation of nanostructured copper(II) oxide-based materials (CuONPs) through a facile additive-free polyol procedure that consists of the hydrolysis of copper(II) acetate in 1,4-butane diol and its application in hydrogen peroxide sensing. The nonenzymatic electrochem...

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Autores principales: Lete, Cecilia, Spinciu, Adela-Maria, Alexandru, Maria-Gabriela, Calderon Moreno, Jose, Leau, Sorina-Alexandra, Marin, Mariana, Visinescu, Diana
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9658751/
https://www.ncbi.nlm.nih.gov/pubmed/36365951
http://dx.doi.org/10.3390/s22218252
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author Lete, Cecilia
Spinciu, Adela-Maria
Alexandru, Maria-Gabriela
Calderon Moreno, Jose
Leau, Sorina-Alexandra
Marin, Mariana
Visinescu, Diana
author_facet Lete, Cecilia
Spinciu, Adela-Maria
Alexandru, Maria-Gabriela
Calderon Moreno, Jose
Leau, Sorina-Alexandra
Marin, Mariana
Visinescu, Diana
author_sort Lete, Cecilia
collection PubMed
description The aim of this study is the preparation of nanostructured copper(II) oxide-based materials (CuONPs) through a facile additive-free polyol procedure that consists of the hydrolysis of copper(II) acetate in 1,4-butane diol and its application in hydrogen peroxide sensing. The nonenzymatic electrochemical sensor for hydrogen peroxide determination was constructed by drop casting the CuONP sensing material on top of a glassy carbon electrode (GCE) modified by a layer of poly(3,4-ethylenedioxythiophene) conducting polymer (PEDOT). The PEDOT layer was prepared on GCE using the sinusoidal voltage method. The XRD pattern of the CuONPs reveals the formation of the monoclinic tenorite phase, CuO, with average crystallite sizes of 8.7 nm, while the estimated band gap from UV–vis spectroscopy is of 1.2 eV. The SEM, STEM, and BET analyses show the formation of quasi-prismatic microaggregates of nanoparticles, with dimensions ranging from 1 µm up to ca. 200 µm, with a mesoporous structure. The developed electrochemical sensor exhibited a linear response toward H(2)O(2) in the concentration range from 0.04 to 10 mM, with a low detection limit of 8.5 μM of H(2)O(2). Furthermore, the obtained sensor possessed an excellent anti-interference capability in H(2)O(2) determination in the presence of interfering compounds such as KNO(3) and KNO(2).
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spelling pubmed-96587512022-11-15 Copper(II) Oxide Nanoparticles Embedded within a PEDOT Matrix for Hydrogen Peroxide Electrochemical Sensing † Lete, Cecilia Spinciu, Adela-Maria Alexandru, Maria-Gabriela Calderon Moreno, Jose Leau, Sorina-Alexandra Marin, Mariana Visinescu, Diana Sensors (Basel) Article The aim of this study is the preparation of nanostructured copper(II) oxide-based materials (CuONPs) through a facile additive-free polyol procedure that consists of the hydrolysis of copper(II) acetate in 1,4-butane diol and its application in hydrogen peroxide sensing. The nonenzymatic electrochemical sensor for hydrogen peroxide determination was constructed by drop casting the CuONP sensing material on top of a glassy carbon electrode (GCE) modified by a layer of poly(3,4-ethylenedioxythiophene) conducting polymer (PEDOT). The PEDOT layer was prepared on GCE using the sinusoidal voltage method. The XRD pattern of the CuONPs reveals the formation of the monoclinic tenorite phase, CuO, with average crystallite sizes of 8.7 nm, while the estimated band gap from UV–vis spectroscopy is of 1.2 eV. The SEM, STEM, and BET analyses show the formation of quasi-prismatic microaggregates of nanoparticles, with dimensions ranging from 1 µm up to ca. 200 µm, with a mesoporous structure. The developed electrochemical sensor exhibited a linear response toward H(2)O(2) in the concentration range from 0.04 to 10 mM, with a low detection limit of 8.5 μM of H(2)O(2). Furthermore, the obtained sensor possessed an excellent anti-interference capability in H(2)O(2) determination in the presence of interfering compounds such as KNO(3) and KNO(2). MDPI 2022-10-28 /pmc/articles/PMC9658751/ /pubmed/36365951 http://dx.doi.org/10.3390/s22218252 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Lete, Cecilia
Spinciu, Adela-Maria
Alexandru, Maria-Gabriela
Calderon Moreno, Jose
Leau, Sorina-Alexandra
Marin, Mariana
Visinescu, Diana
Copper(II) Oxide Nanoparticles Embedded within a PEDOT Matrix for Hydrogen Peroxide Electrochemical Sensing †
title Copper(II) Oxide Nanoparticles Embedded within a PEDOT Matrix for Hydrogen Peroxide Electrochemical Sensing †
title_full Copper(II) Oxide Nanoparticles Embedded within a PEDOT Matrix for Hydrogen Peroxide Electrochemical Sensing †
title_fullStr Copper(II) Oxide Nanoparticles Embedded within a PEDOT Matrix for Hydrogen Peroxide Electrochemical Sensing †
title_full_unstemmed Copper(II) Oxide Nanoparticles Embedded within a PEDOT Matrix for Hydrogen Peroxide Electrochemical Sensing †
title_short Copper(II) Oxide Nanoparticles Embedded within a PEDOT Matrix for Hydrogen Peroxide Electrochemical Sensing †
title_sort copper(ii) oxide nanoparticles embedded within a pedot matrix for hydrogen peroxide electrochemical sensing †
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9658751/
https://www.ncbi.nlm.nih.gov/pubmed/36365951
http://dx.doi.org/10.3390/s22218252
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