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dc.contributor.author Conde Garrido, Juan Manuel
dc.contributor.author Silveyra, Josefina María
dc.contributor.author Ureña, Maria Andrea
dc.date.available 2017-07-07T21:53:18Z
dc.date.issued 2016-02
dc.identifier.citation Conde Garrido, Juan Manuel; Silveyra, Josefina María; Ureña, Maria Andrea; Multi-ion and pH sensitivity of AgGeSe ion selective electrodes; Elsevier; Journal of Physics and Chemistry of Solids; 89; 2-2016; 115-119
dc.identifier.issn 0022-3697
dc.identifier.uri http://hdl.handle.net/11336/19948
dc.description.abstract Many chalcogenide glasses have been found to combine benefits such as good chemical durability, selectivity, and reproducibility for applications as solid-state sensitive membranes of ion selective electrodes (ISEs). In previous works, we have shown that ISEs with ionic conductive AgGeSe membranes have good sensitivity to Ag+ ions. In the present work, we explore the Agx(Ge0.25Se0.75)100−x, 10≤x≤30 (at%) system as candidate for ISEs applications detecting several other ions (K+, Mg2+, Cr3+, Fe3+, Ni2+, Cd2+, Hg2+, and Pb2+). We evaluated ISEs fabricated with bulk as well as with thin film membranes. We found no dependence of the sensing properties on the Ag content of the ionic conductive membranes. Thin films exhibited the same properties than bulk membranes, indicating that these chalcogenide glasses have great potential for miniaturization. The ISEs showed a high response (Nernstian or super-Nernstian) to the presence of Hg2+, Pb2+, and Fe3+, a low response (sub-Nernstian) to the presence of Cr3+, and a total lack of response to the presence of Cd2+, Ni2+, Mg2+, and K+. We also tested how the pH of the solution affected the response of the ISEs. The potentials of the ISEs were practically constant in neutral or acidic solutions, while decreased drastically in basic solutions when the primary ion was not present. The latter phenomenon was caused by the slow dissolution of the membrane into the solution, meaning that long-term basic environments should be avoided for these ISEs. We concluded that ISEs with ionic conductive AgGeSe membranes are good candidates to integrate multi-electrode systems.
dc.format application/pdf
dc.language.iso eng
dc.publisher Elsevier
dc.rights info:eu-repo/semantics/restrictedAccess
dc.rights.uri https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject ISE
dc.subject CHALCOGENIDE GLASS
dc.subject THIN FILMS
dc.subject SELECTIVITY
dc.subject ELECTRONIC TONGUE
dc.subject.classification Otras Ingeniería de los Materiales
dc.subject.classification Ingeniería de los Materiales
dc.subject.classification INGENIERÍAS Y TECNOLOGÍAS
dc.title Multi-ion and pH sensitivity of AgGeSe ion selective electrodes
dc.type info:eu-repo/semantics/article
dc.type info:ar-repo/semantics/artículo
dc.type info:eu-repo/semantics/publishedVersion
dc.date.updated 2017-07-06T18:33:56Z
dc.journal.volume 89
dc.journal.pagination 115-119
dc.journal.pais Países Bajos
dc.journal.ciudad Ámsterdam
dc.description.fil Fil: Conde Garrido, Juan Manuel. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Tecnologías y Ciencias de la Ingeniería "Hilario Fernández Long". Universidad de Buenos Aires. Facultad de Ingeniería. Instituto de Tecnologías y Ciencias de la Ingeniería "Hilario Fernández Long"; Argentina. Universidad de Buenos Aires. Facultad de Ingenieria. Departamento de Fisica. Laboratorio de Sólidos Amorfos; Argentina
dc.description.fil Fil: Silveyra, Josefina María. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Tecnologías y Ciencias de la Ingeniería "Hilario Fernández Long". Universidad de Buenos Aires. Facultad de Ingeniería. Instituto de Tecnologías y Ciencias de la Ingeniería "Hilario Fernández Long"; Argentina. Universidad de Buenos Aires. Facultad de Ingenieria. Departamento de Fisica. Laboratorio de Sólidos Amorfos; Argentina
dc.description.fil Fil: Ureña, Maria Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Tecnologías y Ciencias de la Ingeniería "Hilario Fernández Long". Universidad de Buenos Aires. Facultad de Ingeniería. Instituto de Tecnologías y Ciencias de la Ingeniería "Hilario Fernández Long"; Argentina. Universidad de Buenos Aires. Facultad de Ingenieria. Departamento de Fisica. Laboratorio de Sólidos Amorfos; Argentina
dc.journal.title Journal of Physics and Chemistry of Solids
dc.relation.alternativeid info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0022369715300834
dc.relation.alternativeid info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.jpcs.2015.10.015


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info:eu-repo/semantics/restrictedAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)