Simultaneous characterization of porous and non-porous electrodes in microbial electrochemical systems
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Título: | Simultaneous characterization of porous and non-porous electrodes in microbial electrochemical systems |
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Autor/es: | Prado, Amanda | Berenguer Betrián, Raúl | Berná Galiano, Antonio | Esteve-Núñez, Abraham |
Grupo/s de investigación o GITE: | Electrocatálisis y Electroquímica de Polímeros |
Centro, Departamento o Servicio: | Universidad de Alicante. Departamento de Química Física | Universidad de Alicante. Instituto Universitario de Materiales |
Palabras clave: | Electrode materials | Electroactive biofilms | Bioelectrochemical systems | Porous and non-porous electrodes |
Área/s de conocimiento: | Química Física |
Fecha de publicación: | 2020 |
Editor: | Elsevier |
Cita bibliográfica: | MethodsX. 2020, 7: 101021. https://doi.org/10.1016/j.mex.2020.101021 |
Resumen: | Adequate electrochemical characterization of electrode material/biofilms is crucial for a comprehensive understanding and comparative performance of bioelectrochemical systems (BES). However, their responses are greatly affected by the metabolic activity and growth of these living entities and/or the interference of electrode wiring that can act as an electroactive surface for growth or constitute a source of contamination by corrosion. This restricts the meaningful comparison of the performance of distinct electrode materials in BES. This work describes a methodology for simultaneous electrochemical control and measurement of the microbial response on different electrode materials under the same physicochemical and biological conditions. The method is based on the use of a single channel potentiostat and one counter and reference electrodes to simultaneously polarize several electrode materials in a sole bioelectrochemical cell. Furthermore, various strategies to minimize wiring corrosion are proposed. The proposed methodology, then, will enable a more rigorous characterization of microbial electrochemical responses for comparisons purposes. |
Patrocinador/es: | The authors thank the MINECO and FEDER (RYC-2017-23618) for financial support. This investigation has received funding from the European Union's Horizon 2020 research and innovation programme under the grant agreements No. 642190 (Project “iMETLAND”; http://www.imetland.eu) and No. 826244 (Project “ELECTRA”; http://www.electra.site). Amanda Prado de Nicolás was funded by the “Formación de Personal Investigador (FPI)” PhD fellowship programme from the University of Alcalá. |
URI: | http://hdl.handle.net/10045/110652 |
ISSN: | 2215-0161 |
DOI: | 10.1016/j.mex.2020.101021 |
Idioma: | eng |
Tipo: | info:eu-repo/semantics/article |
Derechos: | © 2020 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license. (http://creativecommons.org/licenses/by/4.0/) |
Revisión científica: | si |
Versión del editor: | https://doi.org/10.1016/j.mex.2020.101021 |
Aparece en las colecciones: | INV - GEPE - Artículos de Revistas Investigaciones financiadas por la UE |
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