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Title: | Oxidacion electroquimica de plata y cobre en medio acuoso básico y en hidróxidos fundidos |
Other Titles: | Electrochemical Oxidation of Silver and Copper in Aqueous Basic Media and in Fused Hydroxide Electrolytes | Authors: | Tejada Rosales, E. M.; Casañ Pastor, Nieves CSIC ORCID; Gómez-Romero, P. CSIC ORCID | Keywords: | Oxidacíon electroquímica Hidróxidos fundidos Óxidos de plata y cobre Electrooxidation Molten hydroxides Silver-copper oxides |
Issue Date: | Mar-2000 | Publisher: | Sociedad Española de Cerámica y Vidrio | Citation: | Boletín de la Sociedad Española de Cerámica y Vidrio 43(2): 220-223 (2004) | Abstract: | [ES]: En este trabajo se describe la oxidación anódico de electrodos de plata y de cobre en medios básicos. Se han utilizado tanto medios
acuosos como hidróxidos fundidos (eutéctico NaOH/KOH). Los procesos de oxidación se han estudiado mediante voltametría cíclica y
cronoamperometría, y las fases resultantes han sido caracterizadas por difracción de Rayos X. Los rangos de estabilidad encontrados para
cada uno dependen del medio utilizado. Además de óxidos conocidos de cobre y de plata, se ha aislado un nuevo óxido de plata. [EN]: The anodic oxidations of copper and silver electrodes in basic media are reported. Experiments were conducted both in aqueous NaOH solutions and in a flux of molten NaOH/KOH eutectic. The oxidation processes were studied by means of cyclic voltammetry and chronoamperometries and the phases obtained were systematically characterized by x-ray diffraction. The ranges of stability of each phase in the different media studied are reported. In addition to known oxides of copper or silver, a new silver oxide was isolated. |
URI: | http://hdl.handle.net/10261/4477 | ISSN: | 0366-3175 |
Appears in Collections: | (ICMAB) Artículos |
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