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Screen-Printed Electrodes Modified with Metal Phthalocyanines: Characterization and Electrocatalysis in Chlorinated Media

Metal phthalocyanines are well-known sensing phases with applications in different scientific fields due to their interesting properties. Detailed characterization by Raman spectroscopy was performed in order to study the shifting of the vibrational bands related to the coordination sphere of each m...

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Autores principales: Antuña-Jiménez, Daniel, Ibáñez, David, González-García, María Begoña, Hernández-Santos, David, Fanjul-Bolado, Pablo
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7374511/
https://www.ncbi.nlm.nih.gov/pubmed/32630681
http://dx.doi.org/10.3390/s20133702
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author Antuña-Jiménez, Daniel
Ibáñez, David
González-García, María Begoña
Hernández-Santos, David
Fanjul-Bolado, Pablo
author_facet Antuña-Jiménez, Daniel
Ibáñez, David
González-García, María Begoña
Hernández-Santos, David
Fanjul-Bolado, Pablo
author_sort Antuña-Jiménez, Daniel
collection PubMed
description Metal phthalocyanines are well-known sensing phases with applications in different scientific fields due to their interesting properties. Detailed characterization by Raman spectroscopy was performed in order to study the shifting of the vibrational bands related to the coordination sphere of each metal phthalocyanine. In this work, a study involving the use of screen-printed electrodes (SPEs) with various metal phthalocyanines to electrochemically detect and quantify chlorine (Cl(2)) gas is presented. The Cl(2) gas was generated in-situ via oxidation of the chloride present in form of aqueous salt solutions. The developed method offers not only the possibility to quantify chlorine, but also to discriminate among several chlorinated species due to the changes observed in the voltammetric profiles associated with the interaction between the specie assayed and the phthalocyanine metallic center. Optimization of detecting parameters was also performed to apply this procedure for the quantification of chlorine generated from commercial chlorine tablets. The development of this proof of concept shows interesting possibilities and easy-to-use applications with novel on metal phthalocyanines based SPE sensors.
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spelling pubmed-73745112020-08-05 Screen-Printed Electrodes Modified with Metal Phthalocyanines: Characterization and Electrocatalysis in Chlorinated Media Antuña-Jiménez, Daniel Ibáñez, David González-García, María Begoña Hernández-Santos, David Fanjul-Bolado, Pablo Sensors (Basel) Article Metal phthalocyanines are well-known sensing phases with applications in different scientific fields due to their interesting properties. Detailed characterization by Raman spectroscopy was performed in order to study the shifting of the vibrational bands related to the coordination sphere of each metal phthalocyanine. In this work, a study involving the use of screen-printed electrodes (SPEs) with various metal phthalocyanines to electrochemically detect and quantify chlorine (Cl(2)) gas is presented. The Cl(2) gas was generated in-situ via oxidation of the chloride present in form of aqueous salt solutions. The developed method offers not only the possibility to quantify chlorine, but also to discriminate among several chlorinated species due to the changes observed in the voltammetric profiles associated with the interaction between the specie assayed and the phthalocyanine metallic center. Optimization of detecting parameters was also performed to apply this procedure for the quantification of chlorine generated from commercial chlorine tablets. The development of this proof of concept shows interesting possibilities and easy-to-use applications with novel on metal phthalocyanines based SPE sensors. MDPI 2020-07-02 /pmc/articles/PMC7374511/ /pubmed/32630681 http://dx.doi.org/10.3390/s20133702 Text en © 2020 by the authors. 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 (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Antuña-Jiménez, Daniel
Ibáñez, David
González-García, María Begoña
Hernández-Santos, David
Fanjul-Bolado, Pablo
Screen-Printed Electrodes Modified with Metal Phthalocyanines: Characterization and Electrocatalysis in Chlorinated Media
title Screen-Printed Electrodes Modified with Metal Phthalocyanines: Characterization and Electrocatalysis in Chlorinated Media
title_full Screen-Printed Electrodes Modified with Metal Phthalocyanines: Characterization and Electrocatalysis in Chlorinated Media
title_fullStr Screen-Printed Electrodes Modified with Metal Phthalocyanines: Characterization and Electrocatalysis in Chlorinated Media
title_full_unstemmed Screen-Printed Electrodes Modified with Metal Phthalocyanines: Characterization and Electrocatalysis in Chlorinated Media
title_short Screen-Printed Electrodes Modified with Metal Phthalocyanines: Characterization and Electrocatalysis in Chlorinated Media
title_sort screen-printed electrodes modified with metal phthalocyanines: characterization and electrocatalysis in chlorinated media
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7374511/
https://www.ncbi.nlm.nih.gov/pubmed/32630681
http://dx.doi.org/10.3390/s20133702
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