6533b7defe1ef96bd1275f73

RESEARCH PRODUCT

Characterization of traditional artificial patinas on copper using the voltammetry of immobilized particles

Antonio Doménech-carbóSara GoidanichChiara PetitiMaría Teresa Doménech-carbóEmilio CanoBlanca Ramírez-barat

subject

General Chemical EngineeringInorganic chemistrychemistry.chemical_element02 engineering and technology010402 general chemistryElectrochemistry01 natural sciencesChlorideAnalytical ChemistryCrystallinitychemistry.chemical_compoundElectrochemistrymedicineSulfateVoltammetryTafel equationAqueous solution021001 nanoscience & nanotechnologyCopper0104 chemical sciencesBronzechemistryArtificial patinasPINTURA0210 nano-technologyCoppermedicine.drug

description

[EN] 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.

yearjournalcountryeditionlanguage
2020-01-01Journal of Electroanalytical Chemistry
https://doi.org/10.1016/j.jelechem.2020.114494