Application of EIS for dating archaeological materials

Detalhes bibliográficos
Autor(a) principal: Doménech-Carbó, Antonio
Data de Publicação: 2016
Outros Autores: Capelo, Sofia, Piquero-Cilla, Joan
Tipo de documento: Artigo de conferência
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10174/21648
Resumo: Dating archaeological metals is in general a difficult analytical task. It is described the application of Electrochemical impedance spectroscopy (EIS) for this purpose, based on the measurement of impedance terms associated to the corrosion layers. EIS data were recorded for coins and other archaeological objects upon immersion of the pieces in mineral water and applying a bias potential for the reduction of dissolved oxygen. A generalized treatment, derived from previous analysis of lead and copper-based artifacts, is presented including theoretical expressions for the variation of impedances on corrosion time assuming uniform conditions of corrosion and a potential rate law.
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spelling Application of EIS for dating archaeological materialsarchaeological metalsdatingvoltammetry of microparticleselectrochemical impedance spectroscopyDating archaeological metals is in general a difficult analytical task. It is described the application of Electrochemical impedance spectroscopy (EIS) for this purpose, based on the measurement of impedance terms associated to the corrosion layers. EIS data were recorded for coins and other archaeological objects upon immersion of the pieces in mineral water and applying a bias potential for the reduction of dissolved oxygen. A generalized treatment, derived from previous analysis of lead and copper-based artifacts, is presented including theoretical expressions for the variation of impedances on corrosion time assuming uniform conditions of corrosion and a potential rate law.2017-12-28T17:40:36Z2017-12-282016-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObjecthttp://hdl.handle.net/10174/21648http://hdl.handle.net/10174/21648engAntonio DOMÉNECH-CARBÓ, Sofia CAPELO, Joan PIQUERO-CILLA, Application of EIS for dating archaeological materials, 10th International Symposium on Electrochemical impedance Spectroscopy (EIS 2016), A Toxa, Spain, 19-24 June 2016.simnaonaoPAO - Comunicações - Em Congressos Científicos Internacionaisantonio.domenech@uv.esscapelo@uevora.ptJoan.Piquero@uv.es709Doménech-Carbó, AntonioCapelo, SofiaPiquero-Cilla, Joaninfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-01-03T19:07:00Zoai:dspace.uevora.pt:10174/21648Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T01:10:29.390322Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Application of EIS for dating archaeological materials
title Application of EIS for dating archaeological materials
spellingShingle Application of EIS for dating archaeological materials
Doménech-Carbó, Antonio
archaeological metals
dating
voltammetry of microparticles
electrochemical impedance spectroscopy
title_short Application of EIS for dating archaeological materials
title_full Application of EIS for dating archaeological materials
title_fullStr Application of EIS for dating archaeological materials
title_full_unstemmed Application of EIS for dating archaeological materials
title_sort Application of EIS for dating archaeological materials
author Doménech-Carbó, Antonio
author_facet Doménech-Carbó, Antonio
Capelo, Sofia
Piquero-Cilla, Joan
author_role author
author2 Capelo, Sofia
Piquero-Cilla, Joan
author2_role author
author
dc.contributor.author.fl_str_mv Doménech-Carbó, Antonio
Capelo, Sofia
Piquero-Cilla, Joan
dc.subject.por.fl_str_mv archaeological metals
dating
voltammetry of microparticles
electrochemical impedance spectroscopy
topic archaeological metals
dating
voltammetry of microparticles
electrochemical impedance spectroscopy
description Dating archaeological metals is in general a difficult analytical task. It is described the application of Electrochemical impedance spectroscopy (EIS) for this purpose, based on the measurement of impedance terms associated to the corrosion layers. EIS data were recorded for coins and other archaeological objects upon immersion of the pieces in mineral water and applying a bias potential for the reduction of dissolved oxygen. A generalized treatment, derived from previous analysis of lead and copper-based artifacts, is presented including theoretical expressions for the variation of impedances on corrosion time assuming uniform conditions of corrosion and a potential rate law.
publishDate 2016
dc.date.none.fl_str_mv 2016-01-01T00:00:00Z
2017-12-28T17:40:36Z
2017-12-28
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/conferenceObject
format conferenceObject
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10174/21648
http://hdl.handle.net/10174/21648
url http://hdl.handle.net/10174/21648
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Antonio DOMÉNECH-CARBÓ, Sofia CAPELO, Joan PIQUERO-CILLA, Application of EIS for dating archaeological materials, 10th International Symposium on Electrochemical impedance Spectroscopy (EIS 2016), A Toxa, Spain, 19-24 June 2016.
sim
nao
nao
PAO - Comunicações - Em Congressos Científicos Internacionais
antonio.domenech@uv.es
scapelo@uevora.pt
Joan.Piquero@uv.es
709
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eu_rights_str_mv openAccess
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instacron:RCAAP
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collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
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