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Interplay between Forced Convection and Electroconvection during the Overlimiting Ion Transport through Anion-Exchange Membranes: A Fourier Transform Analysis of Membrane Voltage Drops

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Interplay between Forced Convection and Electroconvection during the Overlimiting Ion Transport through Anion-Exchange Membranes: A Fourier Transform Analysis of Membrane Voltage Drops

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dc.contributor.author Hernández-Pérez, Lorena es_ES
dc.contributor.author Martí Calatayud, Manuel César es_ES
dc.contributor.author Montañés, Maria-Teresa es_ES
dc.contributor.author Pérez-Herranz, Valentín es_ES
dc.date.accessioned 2024-10-15T18:08:03Z
dc.date.available 2024-10-15T18:08:03Z
dc.date.issued 2023-03 es_ES
dc.identifier.uri http://hdl.handle.net/10251/210215
dc.description.abstract [EN] Electrodialysis (ED) applications have expanded in recent years and new modes of operation are being investigated. Operation at overlimiting currents involves the phenomenon of electroconvection, which is associated with the generation of vortices. These vortices accelerate the process of solution mixing, making it possible to increase the transport of ions across the membranes. In this work, frequency analysis is applied to investigate the interaction between different parameters on the development of electroconvection near anion-exchange membranes, which would provide a basis for the development of ED systems with favored electroconvection. Chronopotentiometric curves are registered and Fast Fourier Transform analysis is carried out to study the amplitude of the transmembrane voltage oscillations. Diverse behaviors are detected as a function of the level of forced convection and current density. The synergistic combination of forced convection and overlimiting currents leads to an increase in the signal amplitude, which is especially noticeable at frequencies around 0.1 Hz. Fast Fourier Transform analysis allows identifying, for a given system, the conditions that lead to a transition between stable and chaotic electroconvection modes. es_ES
dc.description.sponsorship This research was funded by the Agencia Estatal de Investigacion (AEI/10.13039/501100011033) (Spain) under the project PCI2019-103535 and by FEDER A way of making Europe. es_ES
dc.language Inglés es_ES
dc.publisher MDPI AG es_ES
dc.relation.ispartof Membranes es_ES
dc.rights Reconocimiento (by) es_ES
dc.subject Electroconvection es_ES
dc.subject Electrodialysis es_ES
dc.subject Anion-exchange membranes es_ES
dc.subject Fourier transform es_ES
dc.subject Forced convection es_ES
dc.subject Overlimiting currents es_ES
dc.subject.classification INGENIERIA QUIMICA es_ES
dc.title Interplay between Forced Convection and Electroconvection during the Overlimiting Ion Transport through Anion-Exchange Membranes: A Fourier Transform Analysis of Membrane Voltage Drops es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.3390/membranes13030363 es_ES
dc.relation.projectID info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PCI2019-103535/ES/ELECTRO-ELECTRODIALISIS APLICADA A LA INDUSTRIA DE PROCESAMIENTO DE MINERALES DE COBRE PARA LA RECUPERACION DE ANTIMONIO DE LAVADOS DE MINAS Y RECICLAJE DE LA DISOLUCION/ es_ES
dc.rights.accessRights Abierto es_ES
dc.contributor.affiliation Universitat Politècnica de València. Escuela Técnica Superior de Ingenieros Industriales - Escola Tècnica Superior d'Enginyers Industrials es_ES
dc.description.bibliographicCitation Hernández-Pérez, L.; Martí Calatayud, MC.; Montañés, M.; Pérez-Herranz, V. (2023). Interplay between Forced Convection and Electroconvection during the Overlimiting Ion Transport through Anion-Exchange Membranes: A Fourier Transform Analysis of Membrane Voltage Drops. Membranes. 13(3). https://doi.org/10.3390/membranes13030363 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion https://doi.org/10.3390/membranes13030363 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 13 es_ES
dc.description.issue 3 es_ES
dc.identifier.eissn 2077-0375 es_ES
dc.identifier.pmid 36984750 es_ES
dc.identifier.pmcid PMC10058907 es_ES
dc.relation.pasarela S\487999 es_ES
dc.contributor.funder AGENCIA ESTATAL DE INVESTIGACION es_ES
dc.contributor.funder European Regional Development Fund es_ES


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