Please use this identifier to cite or link to this item: http://hdl.handle.net/10174/21498

Title: Characterizing archaeological bronze corrosion products intersecting electrochemical impedance measurements with voltammetry of immobilized particles
Authors: Redondo-Marugán, Jorge
Piquero-Cilla, Joan
Doménech-Carbó, María Teresa
Ramírez-Barat, Blanca
Al Sekhaneh, Wassef
Capelo, Sofia
Doménech-Carbó, Antonio
Keywords: Archaeological bronze
Electrochemical Impedance Measurements
Voltammetry of immobilized particles
Issue Date: 2017
Citation: Jorge Redondo-Marugán, Joan Piquero-Cilla, María Teresa Doménech-Carbó, Blanca Ramírez-Barat, Wassef Al Sekhanehd, Sofia Capelo, Antonio Doménech-Carbó, Characterizing archaeological bronze corrosion products intersecting electrochemical impedance measurements with voltammetry of immobilized particles, Electrochimica Acta 246 (2017) 269-279.
Abstract: Application of electrochemical impedance measurements to microparticulate deposits of copper corrosion products attached to graphite electrodes in contact with 0.10 M aqueous HClO4 electrolyte is described. The impedance measurements were sensitive to the applied potential and the amount of solid sample and were modeled taking into account the contribution of the uncovered base electrode. Several pairs of circuit elements provide monotonic variations which are able to characterize different corrosion compounds regardless the amount of microparticulate solid on the electrode. Application to a set of archaeological samples from the archaeological Roman site of Gadara (Jordan, 4th century AD) permitted to establish a grouping of such samples suggesting different provenances/manufacturing techniques.
URI: http://hdl.handle.net/10174/21498
Type: article
Appears in Collections:CIDEHUS - Publicações - Artigos em Revistas Internacionais Com Arbitragem Científica
PAO - Publicações - Artigos em Revistas Internacionais Com Arbitragem Científica

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