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dc.contributor.author | Ali, Mubarak | es_ES |
dc.contributor.author | Ramirez Hoyos, Patricio | es_ES |
dc.contributor.author | Nasir, Saima | es_ES |
dc.contributor.author | Cervera Montesinos, Javier | es_ES |
dc.contributor.author | Mafe, Salvador | es_ES |
dc.contributor.author | Ensinger, Wolfgang | es_ES |
dc.date.accessioned | 2017-10-20T07:30:04Z | |
dc.date.available | 2017-10-20T07:30:04Z | |
dc.date.issued | 2017 | es_ES |
dc.identifier.issn | 0013-4686 | es_ES |
dc.identifier.uri | http://hdl.handle.net/10251/89681 | |
dc.description.abstract | [EN] We describe experimentally and theoretically the concentration-dependent conduction of tetraalkylammonium (TAA+) cations through a nanofluidic diode fabricated in a polymer membrane via asymmetric track-etching techniques. This single-pore membrane exhibits current rectification characteristics because of the ionized carboxylate groups on the pore surface. We use aqueous solutions of potassium (K+ ), ammonium (A+ ), tetramethylammonium (TMA+ ), tetraethylammonium (TEA+ ), and tetrabutylammonium (TBA+ ) ions with concentrations ranging from 50 to 500 mM under acidic (pH 3.5) and physiological (pH 6.5) conditions. Compared with the K+ and A+ ions, the TMA+ , TEA+ , and TBA+ ions show relatively low rectified ion currents because the cation hydrophobicity increases with the alkyl chain. At low concentrations and acidic conditions, an inversion in the current rectification characteristics is observed, which is attributed to the adsorption of the organic cations on the pore surfaces. The experimental results can be analyzed in terms of the Poisson-Nernst-Planck equations and the geometrical and electrical single pore characteristics for the different ions, pH values, and salt concentrations employed. This theoretical approach is qualitative and could be extended further to include a self-consistent theoretical treatment of the ionic adsorption and surface charge equilibria | es_ES |
dc.description.sponsorship | M. A., S. N., and W. E. acknowledge the funding from the Hessen State Ministry of Higher Education, Research and the Arts, Germany, under the LOEWE project iNAPO. P. R., J. C., and S. M. acknowledge financial support by the Spanish Ministry of Economic Affairs and Competitiveness (MAT2015-65011-P) and FEDER. The authors are also thankful to Prof. C. Trautmann, Department of Materials Research from GSI, for support with irradiation experiments. | en_EN |
dc.language | Inglés | es_ES |
dc.relation.ispartof | ELECTROCHIMICA ACTA | es_ES |
dc.rights | Reserva de todos los derechos | es_ES |
dc.subject | Tetraalkyammonium cations | es_ES |
dc.subject | Biomimetic nanopore | es_ES |
dc.subject | Current rectification | es_ES |
dc.subject | Nanofluidic diode | es_ES |
dc.subject | Nernst-Planck equation | es_ES |
dc.subject.classification | FISICA APLICADA | es_ES |
dc.title | Tetraalkylammonium Cations Conduction through a Single Nanofluidic Diode: Experimental and Theoretical Studies | es_ES |
dc.type | Artículo | es_ES |
dc.identifier.doi | 10.1016/j.electacta.2017.08.078 | es_ES |
dc.relation.projectID | info:eu-repo/grantAgreement/MINECO//MAT2015-65011-P/ES/NANOFLUIDICA DE POROS BIOMIMETICOS: NUEVAS APLICACIONES EN CONVERSION DE ENERGIA Y SENSORES%2FACTUADORES/ | |
dc.rights.accessRights | Abierto | es_ES |
dc.contributor.affiliation | Universitat Politècnica de València. Departamento de Física Aplicada - Departament de Física Aplicada | es_ES |
dc.description.bibliographicCitation | Ali, M.; Ramirez Hoyos, P.; Nasir, S.; Cervera Montesinos, J.; Mafe, S.; Ensinger, W. (2017). Tetraalkylammonium Cations Conduction through a Single Nanofluidic Diode: Experimental and Theoretical Studies. ELECTROCHIMICA ACTA. 250:302-308. https://doi.org/10.1016/j.electacta.2017.08.078 | es_ES |
dc.description.accrualMethod | S | es_ES |
dc.relation.publisherversion | https://doi.org/10.1016/j.electacta.2017.08.078 | es_ES |
dc.description.upvformatpinicio | 302 | es_ES |
dc.description.upvformatpfin | 308 | es_ES |
dc.type.version | info:eu-repo/semantics/publishedVersion | es_ES |
dc.description.volume | 250 | es_ES |
dc.relation.pasarela | S\342403 | es_ES |
dc.contributor.funder | Hessisches Ministerium für Wissenschaft und Kunst, Alemania | |
dc.contributor.funder | Ministerio de Economía, Industria y Competitividad | |
dc.contributor.funder | European Regional Development Fund |