Simultaneous characterization of porous and non-porous electrodes in microbial electrochemical systems
| Autor: | Amanda Prado, Raúl Berenguer, Antonio Berná, Abraham Esteve-Núñez |
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| Přispěvatelé: | Universidad de Alicante. Departamento de Química Física, Universidad de Alicante. Instituto Universitario de Materiales, Electrocatálisis y Electroquímica de Polímeros |
| Rok vydání: | 2020 |
| Předmět: |
Materials science
Working electrode Clinical Biochemistry Nanotechnology Electroactive biofilms 010501 environmental sciences Electrochemistry 01 natural sciences Reference electrode TP Chemical technology Corrosion 03 medical and health sciences Química Física lcsh:Science 030304 developmental biology 0105 earth and related environmental sciences 0303 health sciences Porous and non-porous electrodes Chronoamperometry QD Chemistry Potentiostat Characterization (materials science) Medical Laboratory Technology Bioelectrochemical systems Environmental Science Electrode lcsh:Q Electrode materials |
| Zdroj: | RUA. Repositorio Institucional de la Universidad de Alicante Universidad de Alicante (UA) MethodsX MethodsX, Vol 7, Iss, Pp 101021-(2020) |
| Popis: | 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 Graphical Abstract Image, graphical abstract |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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