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dc.contributor.authorAhualli Yapur, Silvia Alejandra 
dc.contributor.authorFernández, M. Mar
dc.contributor.authorIglesias Salto, Guillermo Ramón 
dc.contributor.authorJiménez Olivares, María Luisa 
dc.contributor.authorLiu, Fei
dc.contributor.authorVagterfeld, Martijn
dc.contributor.authorDelgado Mora, Ángel Vicente 
dc.date.accessioned2014-09-17T11:10:56Z
dc.date.available2014-09-17T11:10:56Z
dc.date.issued2014
dc.identifier.issn1932-7447
dc.identifier.urihttp://hdl.handle.net/10481/33063
dc.descriptionThe final edited version of the paper can be found at: http://pubs.acs.org/articlesonrequest/AOR-c9UMxSzGY3eiU5SENNgT The complete citation is: Ahualli, S.; et al. Effect of Solution Composition on the Energy Production by Capacitive Mixing in Membrane-Electrode Assembly. Journal of Physical Chemistry, 118(29): 15590-15599 (2014). DOI:10.1021/jp504461mes_ES
dc.descriptionOpen access in the Journal on May 26, 2015es_ES
dc.description.abstractIn this work we consider the extent to which the presence of multi-valent ions in solution modifies the equilibrium and dynamics of the energy production in a capacitive cell built with ion-exchange membranes in contact with high surface area electrodes. The cell potential in open circuit (OCV) is controlled by the difference between both membrane potentials, simulated as constant volume charge regions. A theoretical model is elaborated for steady state OCV, first in the case of monovalent solutions, as a reference. This is compared to the results in multi-ionic systems, containing divalent cations in concentrations similar to those in real sea water. It is found that the OCV is reduced by about 25 % (as compared to the results in pure NaCl solutions) due to the presence of the divalent ions, even in low concentrations. Interestingly, this can be related to the “uphill” transport of such ions against their concentration gradients. On the contrary, their effect on the dynamics of the cell potential is negligible in the case of highly charged membranes. The comparison between model predictions and experimental results shows a very satisfactory agreement, and gives clues for the practical application of these recently introduced energy production methods.es_ES
dc.description.sponsorshipThe research leading to these results received funding from the European Union 7th Framework Programme (FP7/2007-2013) under agreement No. 256868. Further financial support from Junta de Andalucia, Spain (PE2012-FQM 694) is also acknowledged. One of us, M.M.F., received financial support throughan FPU grant from the Universityof Granada.es_ES
dc.language.isoenges_ES
dc.publisherAmerican Chemical Societyes_ES
dc.relationinfo:eu-repo/grantAgreement/EC/FP7/256868es_ES
dc.subjectActivated carbon particleses_ES
dc.subjectBlue energyes_ES
dc.subjectCapacitive energy extractiones_ES
dc.subjectDonnan potentiales_ES
dc.subjectIonic exchange membraneses_ES
dc.subjectMultivalent solutionses_ES
dc.titleEffect of Solution Composition on the Energy Production by Capacitive Mixing in Membrane-Electrode Assemblyes_ES
dc.typeinfo:eu-repo/semantics/preprintes_ES
dc.rights.accessRightsinfo:eu-repo/semantics/openAccesses_ES
dc.identifier.doi10.1021/jp504461m


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