Energy harvesting from neutralization reactions with saline feedback

This work proposes an acid-base machine consisting of insertion electrodes for protons and alkaline metal ions placed in electrolytic solutions with different pH values and alkaline ion concentrations to harvest energy from a neutralization reaction. We simulate energy harvesting during acidic waste...

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Autores: Lima, Gilberto, Dubal, Deepak P.|||0000-0002-2337-676X, Rueda García, Daniel|||0000-0003-3539-1585, Gómez-Romero, Pedro|||0000-0002-6208-5340, Huguenin, Fritz|||0000-0002-4164-7930
Tipo de recurso: artículo
Fecha de publicación:2018
País:España
Institución:Universitat Autònoma de Barcelona
Repositorio:Dipòsit Digital de Documents de la UAB
Idioma:inglés
OAI Identifier:oai:ddd.uab.cat:215000
Acceso en línea:https://ddd.uab.cat/record/215000
https://dx.doi.org/urn:doi:10.1016/j.electacta.2018.04.075
Access Level:acceso abierto
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spelling Energy harvesting from neutralization reactions with saline feedbackLima, GilbertoDubal, Deepak P.|||0000-0002-2337-676XRueda García, Daniel|||0000-0003-3539-1585Gómez-Romero, Pedro|||0000-0002-6208-5340Huguenin, Fritz|||0000-0002-4164-7930This work proposes an acid-base machine consisting of insertion electrodes for protons and alkaline metal ions placed in electrolytic solutions with different pH values and alkaline ion concentrations to harvest energy from a neutralization reaction. We simulate energy harvesting during acidic wastewater treatment with base (KOH) by using phosphomolybdic acid and nickel hexacyanoferrate as the negative and the positive electrodes, respectively, in aqueous HSO and KSO solutions. In this configuration, the machine harvests energy from a change in the free energy related to changes in the proton and in the potassium ion concentrations after neutralization reactions, with feedback from the saline solution resulting from neutralization. The electrochemical impedance spectroscopy diagrams provide insight into the practical proton and potassium ion electroinsertion reversibility in acidic and neutral media. Based on the charge/discharge curves at pH = 2 and pH = 5.8, the acid-base machine harvests ca. 10 kJ per mol of electro-inserted protons in the first cycles. These results demonstrate that the methodology is viable for sustainable growth-it can harvest energy from wastewater treatment, a practice that can be especially profitable for the industrial sector, which produces great amounts of wastewater. 22018-01-0120182018-01-01Articlehttp://purl.org/coar/resource_type/c_6501AMhttp://purl.org/coar/version/c_ab4af688f83e57aainfo:eu-repo/semantics/articleapplication/pdfhttps://ddd.uab.cat/record/215000https://dx.doi.org/urn:doi:10.1016/j.electacta.2018.04.075reponame:Dipòsit Digital de Documents de la UABinstname:Universitat Autònoma de BarcelonaInglésengMinisterio de Economía y Competitividad https://doi.org/10.13039/501100003329 MAT2015-68394-RMinisterio de Economía y Competitividad https://doi.org/10.13039/501100003329 SEV-2013-0295open accesshttp://purl.org/coar/access_right/c_abf2Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, i la comunicació pública de l'obra, sempre que no sigui amb finalitats comercials, i sempre que es reconegui l'autoria de l'obra original. No es permet la creació d'obres derivades.https://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessoai:ddd.uab.cat:2150002026-06-06T12:50:31Z
dc.title.none.fl_str_mv Energy harvesting from neutralization reactions with saline feedback
title Energy harvesting from neutralization reactions with saline feedback
spellingShingle Energy harvesting from neutralization reactions with saline feedback
Lima, Gilberto
title_short Energy harvesting from neutralization reactions with saline feedback
title_full Energy harvesting from neutralization reactions with saline feedback
title_fullStr Energy harvesting from neutralization reactions with saline feedback
title_full_unstemmed Energy harvesting from neutralization reactions with saline feedback
title_sort Energy harvesting from neutralization reactions with saline feedback
dc.creator.none.fl_str_mv Lima, Gilberto
Dubal, Deepak P.|||0000-0002-2337-676X
Rueda García, Daniel|||0000-0003-3539-1585
Gómez-Romero, Pedro|||0000-0002-6208-5340
Huguenin, Fritz|||0000-0002-4164-7930
author Lima, Gilberto
author_facet Lima, Gilberto
Dubal, Deepak P.|||0000-0002-2337-676X
Rueda García, Daniel|||0000-0003-3539-1585
Gómez-Romero, Pedro|||0000-0002-6208-5340
Huguenin, Fritz|||0000-0002-4164-7930
author_role author
author2 Dubal, Deepak P.|||0000-0002-2337-676X
Rueda García, Daniel|||0000-0003-3539-1585
Gómez-Romero, Pedro|||0000-0002-6208-5340
Huguenin, Fritz|||0000-0002-4164-7930
author2_role author
author
author
author
description This work proposes an acid-base machine consisting of insertion electrodes for protons and alkaline metal ions placed in electrolytic solutions with different pH values and alkaline ion concentrations to harvest energy from a neutralization reaction. We simulate energy harvesting during acidic wastewater treatment with base (KOH) by using phosphomolybdic acid and nickel hexacyanoferrate as the negative and the positive electrodes, respectively, in aqueous HSO and KSO solutions. In this configuration, the machine harvests energy from a change in the free energy related to changes in the proton and in the potassium ion concentrations after neutralization reactions, with feedback from the saline solution resulting from neutralization. The electrochemical impedance spectroscopy diagrams provide insight into the practical proton and potassium ion electroinsertion reversibility in acidic and neutral media. Based on the charge/discharge curves at pH = 2 and pH = 5.8, the acid-base machine harvests ca. 10 kJ per mol of electro-inserted protons in the first cycles. These results demonstrate that the methodology is viable for sustainable growth-it can harvest energy from wastewater treatment, a practice that can be especially profitable for the industrial sector, which produces great amounts of wastewater.
publishDate 2018
dc.date.none.fl_str_mv 2
2018-01-01
2018
2018-01-01
dc.type.none.fl_str_mv Article
http://purl.org/coar/resource_type/c_6501
AM
http://purl.org/coar/version/c_ab4af688f83e57aa
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://ddd.uab.cat/record/215000
https://dx.doi.org/urn:doi:10.1016/j.electacta.2018.04.075
url https://ddd.uab.cat/record/215000
https://dx.doi.org/urn:doi:10.1016/j.electacta.2018.04.075
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.relation.none.fl_str_mv Ministerio de Economía y Competitividad https://doi.org/10.13039/501100003329 MAT2015-68394-R
Ministerio de Economía y Competitividad https://doi.org/10.13039/501100003329 SEV-2013-0295
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
https://creativecommons.org/licenses/by-nc-nd/4.0/
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
https://creativecommons.org/licenses/by-nc-nd/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:Dipòsit Digital de Documents de la UAB
instname:Universitat Autònoma de Barcelona
instname_str Universitat Autònoma de Barcelona
reponame_str Dipòsit Digital de Documents de la UAB
collection Dipòsit Digital de Documents de la UAB
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