Nanostructuring of anodic copper oxides in fluoride-containing ethylene glycol media
Author
dc.contributor.author
Oyarzún Jerez, Diego
Author
dc.contributor.author
López Teijelo, Manuel
Author
dc.contributor.author
Ramos Cervantes, Wilkendry
Author
dc.contributor.author
Linarez Pérez, Omar
Author
dc.contributor.author
Sánchez, Julio
Author
dc.contributor.author
Pizarro, Guadalupe del C.
Author
dc.contributor.author
Acosta, Gabriela
Author
dc.contributor.author
Flores Carrasco, Marcos
Author
dc.contributor.author
Arratia Pérez, Ramiro
Admission date
dc.date.accessioned
2019-05-29T13:39:18Z
Available date
dc.date.available
2019-05-29T13:39:18Z
Publication date
dc.date.issued
2017
Cita de ítem
dc.identifier.citation
Journal of Electroanalytical Chemistry 807 (2017) 181–186
Identifier
dc.identifier.issn
15726657
Identifier
dc.identifier.other
10.1016/j.jelechem.2017.11.047
Identifier
dc.identifier.uri
https://repositorio.uchile.cl/handle/2250/169050
Abstract
dc.description.abstract
We demonstrate that the anodization of copper in alkaline water/ethylene glycol media containing fluoride ions generates nanostructured copper oxide films. By modifying the anodization conditions (fluoride and OH– concentrations, applied voltage and anodization time), nanofibrillar Cu2O as well as highly rough nanofibrillar network or nanoporous mixed Cu2O/CuO films are obtained. Raman and X-ray Photoemission Spectroscopy (XPS) results indicate that in fluoride presence, Cu(I) oxide is obtained when anodization takes place applying low voltages at a relatively low OH– concentration. In comparison, the subsequent oxidation to obtain Cu(II) species (CuO and Cu(OH)2) is promoted by increasing the OH– contents. According to the present results, an oxidation reaction scheme is proposed in order to gain a deeper understanding in the preparation of controlled nanostructured copper oxide films.