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Impedance Spectroscopy Analysis of a Thermo-Electrochemical Cell Under Operating Conditions
dc.contributor.author | Castro Ruiz, Sergio | |
dc.contributor.author | García-Cañadas, Jorge | |
dc.date.accessioned | 2023-03-24T08:36:03Z | |
dc.date.available | 2023-03-24T08:36:03Z | |
dc.date.issued | 2022-10-29 | |
dc.identifier.citation | S. Castro-Ruiz and J. García-Cañadas, "Impedance Spectroscopy Analysis of a Thermo-Electrochemical Cell Under Operating Conditions," 2022 International Workshop on Impedance Spectroscopy (IWIS), Chemnitz, Germany, 2022, pp. 25-27, doi: 10.1109/IWIS57888.2022.9975126. | ca_CA |
dc.identifier.isbn | 9798350310399 | |
dc.identifier.uri | http://hdl.handle.net/10234/202047 | |
dc.description | Proceedings from the 2022 International Workshop on Impedance Spectroscopy (IWIS), Chemnitz, Germany, 2022. | ca_CA |
dc.description.abstract | Low-grade (<200°C) heat is an abundant and available energy not generally exploited. In this regard, the so-called thermo-electrochemical cells have become a valid opportunity to harvest this ubiquitous source of heat. They are capable to convert heat into electricity by means of the temperature-redox potential dependency of a redox couple. In fact, they present Seebeck coefficient values in order of mV/K, much higher than solid-state thermoelectrics. In this work, a system formed by two Pt electrodes in contact with a 0.4 M ferro/ferricyanide aqueous solution has been studied by means of impedance spectroscopy under operating conditions (ΔT=40 K). The main processes which govern the performance of the system have been identified, which lead to different resistances: (i) electrolyte ionic resistance, (ii) charge transfer resistance and (iii) mass transfer resistance. It was also demonstrated that the current-voltage characteristics of the device can be obtained knowing the open-circuit potential and performing a single impedance spectroscopy measurement, which determines the device dc resistance. This method can save a significant amount of time in many cases. | ca_CA |
dc.format.extent | 3 p. | ca_CA |
dc.format.mimetype | application/pdf | ca_CA |
dc.language.iso | eng | ca_CA |
dc.publisher | IEEE | ca_CA |
dc.relation | UncorrelaTEd project | ca_CA |
dc.rights | Copyright © 2022, IEEE | ca_CA |
dc.rights.uri | http://rightsstatements.org/vocab/InC/1.0/ | ca_CA |
dc.subject | thermocells | ca_CA |
dc.subject | thermogalvanic cells | ca_CA |
dc.subject | liquid thermoelectrics | ca_CA |
dc.subject | redox species | ca_CA |
dc.title | Impedance Spectroscopy Analysis of a Thermo-Electrochemical Cell Under Operating Conditions | ca_CA |
dc.type | info:eu-repo/semantics/conferenceObject | ca_CA |
dc.identifier.doi | https://doi.org/ 10.1109/IWIS57888.2022.9975126 | |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | ca_CA |
dc.relation.publisherVersion | https://ieeexplore.ieee.org/document/9975126 | ca_CA |
dc.type.version | info:eu-repo/semantics/acceptedVersion | ca_CA |
project.funder.name | European Union’s Horizon 2020 | ca_CA |
oaire.awardNumber | 863222 | ca_CA |