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dc.contributor | Facultad de Ciencias Biologicas y Ambientales | es_ES |
dc.contributor.author | Carrillo Peña, Daniela Andrea | |
dc.contributor.author | Pelaz Guerra, Guillermo | |
dc.contributor.author | Mateos González, Raúl | |
dc.contributor.author | Escapa González, Adrián | |
dc.contributor.other | Fisica Aplicada | es_ES |
dc.date | 2024-01 | |
dc.date.accessioned | 2023-11-27T10:01:57Z | |
dc.date.available | 2023-11-27T10:01:57Z | |
dc.identifier.citation | Carrillo-Peña, D., Pelaz, G., Mateos, R., & Escapa, A. (2024). Charge storage capacity of electromethanogenic biocathodes. Journal of Energy Storage, 76, 109789. https://doi.org/https://doi.org/10.1016/j.est.2023.109789 | es_ES |
dc.identifier.issn | 2352-152X | |
dc.identifier.uri | https://hdl.handle.net/10612/17449 | |
dc.description.abstract | [EN] Methanogenic biocathodes (MB) can convert CO2 and electricity into methane. This feature, that allows them to potentially be used for long-term electrical energy storage, has aroused great interest during the past 10 years. MB can also operate as biological supercapacitors, a characteristic that can be exploited for short-term energy storage and that has received much less attention. In this study, we investigate the electrical charge storage capabilities of carbon-felt-based MB modified with graphene oxide. The charge-discharge experiments revealed that the potential of the electrode plays an important role during the discharging period: low potentials (−1.2 V vs Ag/AgCl) created an inrush of faradaic current that masked any capacitive current. At more positive potentials (−0.8 V vs Ag/AgCl), the biological electrodes were outperformed by the abiotic electrodes, and only when the potential was set at −1.0 V vs Ag/AgCl the graphene-modified biological electrode showed its superior charge storage capacity. Overall, results indicated that the graphene modification is crucial to obtain bioelectrodes with improved capacitance: untreated bioelectrodes showed a charge storage capacity inferior to that measured in the abiotic electrodes. | es_ES |
dc.language | eng | es_ES |
dc.publisher | Elsevier | es_ES |
dc.rights | Attribution-NonCommercial-NoDerivatives 4.0 Internacional | * |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | * |
dc.subject | Ingeniería química | es_ES |
dc.subject.other | Biocathodes | es_ES |
dc.subject.other | Capacitance | es_ES |
dc.subject.other | Charge storage | es_ES |
dc.subject.other | Energy storage | es_ES |
dc.title | Charge storage capacity of electromethanogenic biocathodes | es_ES |
dc.type | info:eu-repo/semantics/article | es_ES |
dc.identifier.doi | 10.1016/j.est.2023.109789 | |
dc.description.peerreviewed | SI | es_ES |
dc.relation.projectID | info:eu-repo/grantAgreement/Ministerio de Ciencia, Innovación y Universidades/ TED2021-129687A-I00 | es_ES |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | es_ES |
dc.journal.title | Journal of Energy Storage | es_ES |
dc.volume.number | 76 | es_ES |
dc.issue.number | 109789 | es_ES |
dc.type.hasVersion | info:eu-repo/semantics/publishedVersion | es_ES |
dc.subject.unesco | 3303 Ingeniería y Tecnología Químicas | es_ES |
dc.description.project | MCIN/AEI/10.13039/501100011033 | es_ES |
dc.description.project | European Union NextGenerationEU/PRTR | es_ES |
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