Electrochemical discrimination of mints: The last Chinese emperors Kuang Hsu and Hsuan T&apos

[EN] An electrochemical methodology for discriminating monetary emissions, a recurrent problem in much archaeological studies, is introduced. The method is based on the record of voltammetric signatures of cuprite and tenorite corrosion products in the patina using a minimally invasive nanosampling...

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Detalles Bibliográficos
Autores: Domenech-Carbo, Antonio, Montagna, Elena, Álvarez-Romero, Carla, Lee, Yu, Domenech Carbo, Mª Teresa|||0000-0003-3660-2161
Tipo de recurso: artículo
Fecha de publicación:2017
País:España
Institución:Universitat Politècnica de València (UPV)
Repositorio:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
Idioma:inglés
OAI Identifier:oai:riunet.upv.es:10251/105854
Acceso en línea:https://riunet.upv.es/handle/10251/105854
Access Level:acceso abierto
Palabra clave:Archaeometry
Voltammetry of microparticles
Electrochemical Impedance Spectroscopy
PINTURA
CONSERVACION Y RESTAURACION DE BIENES CULTURALES (UPV)
Descripción
Sumario:[EN] An electrochemical methodology for discriminating monetary emissions, a recurrent problem in much archaeological studies, is introduced. The method is based on the record of voltammetric signatures of cuprite and tenorite corrosion products in the patina using a minimally invasive nanosampling following the voltammetry of immobilized particles methodology. A model for the depth variation of voltammetric electrochemical parameters characterizing the composition of the corrosion patinas is presented. This model permits to rationalize electrochemical data and discriminate different monetary emissions. The application of this technique, corroborated by electrochemical impedance spectroscopy (EIS) and focusing ion beam-field emission scanning electron microscopy (FIB-FESEM-EDX), to a series of 10 cash copper coins produced around the Kuang Hsu and Hsuan Tung last Chinese emperors permits to discern different provincial mints and reveals that the monetary unification developed in this period was not uniform.