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

Research output: Contribution to journalArticle

5 Citations (Scopus)

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.

Original languageEnglish
Pages (from-to)181-186
Number of pages6
JournalJournal of Electroanalytical Chemistry
Volume807
DOIs
Publication statusPublished - 15 Dec 2017

Keywords

  • Copper oxides
  • Nanostructured oxides
  • Raman
  • XPS

ASJC Scopus subject areas

  • Analytical Chemistry
  • Chemical Engineering(all)
  • Electrochemistry

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  • Cite this

    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