Characterization of traditional artificial patinas on copper using the voltammetry of immobilized particles
Doménech-Carbó, A. Ramírez-Barat, B., Petiti, C., Goidanich, S., Doménech-Carbó, M.T., Cano, E.
Abstract: The voltammetry of immobilized particles methodology (VIMP) is used to characterize the composition of artificial patinas on copper. The voltammetric response of carbonate-, nitrate-, chloride-, sulfate-, and sulfide-based patinas is described using sub-microsamples attached to graphite electrodes in contact with aqueous acetate buffer. Patina-characteristic voltammetric profiles are obtained for the different artificial patinas that can be recognized using the generalized Tafel analysis of the voltammetric curves. VIMP data could also provide layer-by-layer information about composition and compactness/crystallinity of the patinas for which a simplified theoretical modeling is presented.
DOI: 10.1016/j.jelechem.2020.114494
Enlace a la publicación: https://www.scopus.com/record/display.uri?eid=2-s2.0-85089219194&origin=inward&txGid=6d8cd4b9a440154f616e8add7ef94428