Nanostructuring of anodic copper oxides in fluoride-containing ethylene glycol media

Diego P. Oyarzún Jerez, Manuel López Teijelo, Wilkendry Ramos Cervantes, Omar E. Linarez Pérez, Julio Sánchez, Guadalupe del C. Pizarro, Gabriela Acosta, Marcos Flores, Ramiro Arratia-Perez

Resultado de la investigación: Contribución a una revistaArtículo

5 Citas (Scopus)

Resumen

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.

Idioma originalInglés
Páginas (desde-hasta)181-186
Número de páginas6
PublicaciónJournal of Electroanalytical Chemistry
Volumen807
DOI
EstadoPublicada - 15 dic 2017

Áreas temáticas de ASJC Scopus

  • Química analítica
  • Ingeniería química (todo)
  • Electroquímica

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    Oyarzún Jerez, D. P., López Teijelo, M., Ramos Cervantes, W., Linarez Pérez, O. E., Sánchez, J., Pizarro, G. D. C., Acosta, G., Flores, M., & Arratia-Perez, R. (2017). Nanostructuring of anodic copper oxides in fluoride-containing ethylene glycol media. Journal of Electroanalytical Chemistry, 807, 181-186. https://doi.org/10.1016/j.jelechem.2017.11.047