Simultaneous characterization of porous and non-porous electrodes in microbial electrochemical systems
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 th...
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| Format: | Article |
| Language: | English |
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Elsevier
2020-01-01
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| Series: | MethodsX |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2215016120302417 |
| _version_ | 1818426653620043776 |
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| author | A. Prado R. Berenguer A. Berná A. Esteve-Núñez |
| author_facet | A. Prado R. Berenguer A. Berná A. Esteve-Núñez |
| author_sort | A. Prado |
| collection | DOAJ |
| description | 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. • Experimental Set-up allows to polarize several working electrodes at the same time. • Chronoamperometry can be performed simultaneously with a potentiostat. • The physicochemical and biological conditions in each working electrode will be exactly the same |
| first_indexed | 2024-12-14T14:33:15Z |
| format | Article |
| id | doaj.art-ca0dfd432ad34985b895ce333fac0c1e |
| institution | Directory Open Access Journal |
| issn | 2215-0161 |
| language | English |
| last_indexed | 2024-12-14T14:33:15Z |
| publishDate | 2020-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | MethodsX |
| spelling | doaj.art-ca0dfd432ad34985b895ce333fac0c1e2022-12-21T22:57:45ZengElsevierMethodsX2215-01612020-01-017101021Simultaneous characterization of porous and non-porous electrodes in microbial electrochemical systemsA. Prado0R. Berenguer1A. Berná2A. Esteve-Núñez3Universidad de Alcalá, Alcalá de Henares, Spain; IMDEA Agua, Parque Tecnológico de la Universidad de Alcalá, 28805 Alcalá de Henares, SpainCorresponding authors at: IMDEA Agua, Parque Tecnológico de la Universidad de Alcalá, 28805 Alcalá de Henares, Spain.; IMDEA Agua, Parque Tecnológico de la Universidad de Alcalá, 28805 Alcalá de Henares, Spain; Instituto Universitario de Materiales, Departamento de Química Física, Universidad de Alicante (UA), Apartado 99, 03080 Alicante, SpainIMDEA Agua, Parque Tecnológico de la Universidad de Alcalá, 28805 Alcalá de Henares, SpainCorresponding authors at: IMDEA Agua, Parque Tecnológico de la Universidad de Alcalá, 28805 Alcalá de Henares, Spain.; Universidad de Alcalá, Alcalá de Henares, Spain; IMDEA Agua, Parque Tecnológico de la Universidad de Alcalá, 28805 Alcalá de Henares, SpainAdequate 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. • Experimental Set-up allows to polarize several working electrodes at the same time. • Chronoamperometry can be performed simultaneously with a potentiostat. • The physicochemical and biological conditions in each working electrode will be exactly the samehttp://www.sciencedirect.com/science/article/pii/S2215016120302417Electrode materialsElectroactive biofilmsBioelectrochemical systemsPorous and non-porous electrodes |
| spellingShingle | A. Prado R. Berenguer A. Berná A. Esteve-Núñez Simultaneous characterization of porous and non-porous electrodes in microbial electrochemical systems MethodsX Electrode materials Electroactive biofilms Bioelectrochemical systems Porous and non-porous electrodes |
| title | Simultaneous characterization of porous and non-porous electrodes in microbial electrochemical systems |
| title_full | Simultaneous characterization of porous and non-porous electrodes in microbial electrochemical systems |
| title_fullStr | Simultaneous characterization of porous and non-porous electrodes in microbial electrochemical systems |
| title_full_unstemmed | Simultaneous characterization of porous and non-porous electrodes in microbial electrochemical systems |
| title_short | Simultaneous characterization of porous and non-porous electrodes in microbial electrochemical systems |
| title_sort | simultaneous characterization of porous and non porous electrodes in microbial electrochemical systems |
| topic | Electrode materials Electroactive biofilms Bioelectrochemical systems Porous and non-porous electrodes |
| url | http://www.sciencedirect.com/science/article/pii/S2215016120302417 |
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