Short-Circuit Current in Polymeric Membrane-Based Thermocells: An Experimental Study

Thermocells are non-isothermal electrochemical cells used to convert thermal energy into electricity. In a thermocell, together with the ion flux, heat is also transferred, which can reduce the temperature gradient and thus the delivered electric current. A charged membrane used as a separating barr...

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Detalles Bibliográficos
Autor: Barragán García, Vicenta María
Tipo de recurso: artículo
Fecha de publicación:2021
País:España
Institución:Universidad Complutense de Madrid (UCM)
Repositorio:Docta Complutense
Idioma:inglés
OAI Identifier:oai:docta.ucm.es:20.500.14352/4442
Acceso en línea:https://hdl.handle.net/20.500.14352/4442
Access Level:acceso abierto
Palabra clave:536
Cation-Exchange membranes
Unstirred solution Layers
Heat
Termodinámica
2213 Termodinámica
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repository_id_str
spelling Short-Circuit Current in Polymeric Membrane-Based Thermocells: An Experimental StudyBarragán García, Vicenta María536Cation-Exchange membranesUnstirred solution LayersHeatTermodinámica2213 TermodinámicaThermocells are non-isothermal electrochemical cells used to convert thermal energy into electricity. In a thermocell, together with the ion flux, heat is also transferred, which can reduce the temperature gradient and thus the delivered electric current. A charged membrane used as a separating barrier in the electrolyte liquid could reduce this problem. Therefore, the use of ion-exchange membranes has been suggested as an alternative in terms of thermoelectricity because of their high Seebeck coefficient. Ion transfer occurs not only at the liquid solution but also at the solid membrane when a temperature gradient is imposed. Thus, the electric current delivered by the thermocell will also be highly dependent on the membrane system properties. In this work, a polymeric membrane-based thermocell with 1:1 alkali chloride electrolytes and reversible Ag|AgCl electrodes at different temperatures is studied. This work focuses on the experimental relation between the short-circuit current density and the temperature difference. Short-circuit current is the maximum electric current supplied by a thermocell and is directly related to the maximum output electrical power. It can therefore provide valuable information on the thermocell efficiency. The effect of the membrane, electrolyte nature and hydrodynamic conditions is analysed from an experimental point of view.MDPIUniversidad Complutense de Madrid20212021-07-0120212021-07-01journal articlehttp://purl.org/coar/resource_type/c_6501info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/20.500.14352/4442reponame:Docta Complutenseinstname:Universidad Complutense de Madrid (UCM)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Atribución 3.0 Españahttps://creativecommons.org/licenses/by/3.0/es/info:eu-repo/semantics/openAccessoai:docta.ucm.es:20.500.14352/44422026-06-02T12:44:21Z
dc.title.none.fl_str_mv Short-Circuit Current in Polymeric Membrane-Based Thermocells: An Experimental Study
title Short-Circuit Current in Polymeric Membrane-Based Thermocells: An Experimental Study
spellingShingle Short-Circuit Current in Polymeric Membrane-Based Thermocells: An Experimental Study
Barragán García, Vicenta María
536
Cation-Exchange membranes
Unstirred solution Layers
Heat
Termodinámica
2213 Termodinámica
title_short Short-Circuit Current in Polymeric Membrane-Based Thermocells: An Experimental Study
title_full Short-Circuit Current in Polymeric Membrane-Based Thermocells: An Experimental Study
title_fullStr Short-Circuit Current in Polymeric Membrane-Based Thermocells: An Experimental Study
title_full_unstemmed Short-Circuit Current in Polymeric Membrane-Based Thermocells: An Experimental Study
title_sort Short-Circuit Current in Polymeric Membrane-Based Thermocells: An Experimental Study
dc.creator.none.fl_str_mv Barragán García, Vicenta María
author Barragán García, Vicenta María
author_facet Barragán García, Vicenta María
author_role author
dc.contributor.none.fl_str_mv Universidad Complutense de Madrid
dc.subject.none.fl_str_mv 536
Cation-Exchange membranes
Unstirred solution Layers
Heat
Termodinámica
2213 Termodinámica
topic 536
Cation-Exchange membranes
Unstirred solution Layers
Heat
Termodinámica
2213 Termodinámica
description Thermocells are non-isothermal electrochemical cells used to convert thermal energy into electricity. In a thermocell, together with the ion flux, heat is also transferred, which can reduce the temperature gradient and thus the delivered electric current. A charged membrane used as a separating barrier in the electrolyte liquid could reduce this problem. Therefore, the use of ion-exchange membranes has been suggested as an alternative in terms of thermoelectricity because of their high Seebeck coefficient. Ion transfer occurs not only at the liquid solution but also at the solid membrane when a temperature gradient is imposed. Thus, the electric current delivered by the thermocell will also be highly dependent on the membrane system properties. In this work, a polymeric membrane-based thermocell with 1:1 alkali chloride electrolytes and reversible Ag|AgCl electrodes at different temperatures is studied. This work focuses on the experimental relation between the short-circuit current density and the temperature difference. Short-circuit current is the maximum electric current supplied by a thermocell and is directly related to the maximum output electrical power. It can therefore provide valuable information on the thermocell efficiency. The effect of the membrane, electrolyte nature and hydrodynamic conditions is analysed from an experimental point of view.
publishDate 2021
dc.date.none.fl_str_mv 2021
2021-07-01
2021
2021-07-01
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/20.500.14352/4442
url https://hdl.handle.net/20.500.14352/4442
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Atribución 3.0 España
https://creativecommons.org/licenses/by/3.0/es/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Atribución 3.0 España
https://creativecommons.org/licenses/by/3.0/es/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv MDPI
publisher.none.fl_str_mv MDPI
dc.source.none.fl_str_mv reponame:Docta Complutense
instname:Universidad Complutense de Madrid (UCM)
instname_str Universidad Complutense de Madrid (UCM)
reponame_str Docta Complutense
collection Docta Complutense
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,301603

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