Linear sweep voltammetry: a cheap and powerful technique for the identification of the silver tarnish layer constituents
Autor(a) principal: | |
---|---|
Data de Publicação: | 2012 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10174/7831 https://doi.org/10.1007/s10008-012-1884-3 |
Resumo: | The potentialities of linear sweep voltammetry (LSV) for the characterization of the tarnish layer formed on pure and sterling silver samples exposed in the chapel and in the museum, at the Cathedral of Porto, in Portugal, are well demonstrated in this study. The technique allows the identification of the constituents of the thin tarnishing layers and also its relative abundance. A much more complex composition than the silver sulphide commonly associated with silver tarnish has been found, namely, silver chlorides, silver oxides and minor amounts of silver sulphide on the pure silver, plus copper oxides and a mixed copper-silver sulphide on the sterling silver samples. The tarnishing films were very thin mainly composed by silver chloride and silver oxides layers with thicknesses ranging between 0.22 and 9.63 nm. |
id |
RCAP_118a0e2c366c8c23186644d29ddb6cf1 |
---|---|
oai_identifier_str |
oai:dspace.uevora.pt:10174/7831 |
network_acronym_str |
RCAP |
network_name_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository_id_str |
7160 |
spelling |
Linear sweep voltammetry: a cheap and powerful technique for the identification of the silver tarnish layer constituentsSilverChapelMuseumTarnishing layerLSVAtmospheric pollutantsThe potentialities of linear sweep voltammetry (LSV) for the characterization of the tarnish layer formed on pure and sterling silver samples exposed in the chapel and in the museum, at the Cathedral of Porto, in Portugal, are well demonstrated in this study. The technique allows the identification of the constituents of the thin tarnishing layers and also its relative abundance. A much more complex composition than the silver sulphide commonly associated with silver tarnish has been found, namely, silver chlorides, silver oxides and minor amounts of silver sulphide on the pure silver, plus copper oxides and a mixed copper-silver sulphide on the sterling silver samples. The tarnishing films were very thin mainly composed by silver chloride and silver oxides layers with thicknesses ranging between 0.22 and 9.63 nm.Springer2013-01-28T15:51:45Z2013-01-282012-09-28T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://hdl.handle.net/10174/7831http://hdl.handle.net/10174/7831https://doi.org/10.1007/s10008-012-1884-3por223-2341432-848817J Solid State Electrochemscapelo@uevora.ptndnditfonseca@fc.ul.ptCapelo, SofiaMenino Homem, P.Cavalheiro, J.Fonseca, I.T. E.info: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:RCAAP2024-01-03T18:48:23Zoai:dspace.uevora.pt:10174/7831Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T01:02:16.873564Repositório 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 |
Linear sweep voltammetry: a cheap and powerful technique for the identification of the silver tarnish layer constituents |
title |
Linear sweep voltammetry: a cheap and powerful technique for the identification of the silver tarnish layer constituents |
spellingShingle |
Linear sweep voltammetry: a cheap and powerful technique for the identification of the silver tarnish layer constituents Capelo, Sofia Silver Chapel Museum Tarnishing layer LSV Atmospheric pollutants |
title_short |
Linear sweep voltammetry: a cheap and powerful technique for the identification of the silver tarnish layer constituents |
title_full |
Linear sweep voltammetry: a cheap and powerful technique for the identification of the silver tarnish layer constituents |
title_fullStr |
Linear sweep voltammetry: a cheap and powerful technique for the identification of the silver tarnish layer constituents |
title_full_unstemmed |
Linear sweep voltammetry: a cheap and powerful technique for the identification of the silver tarnish layer constituents |
title_sort |
Linear sweep voltammetry: a cheap and powerful technique for the identification of the silver tarnish layer constituents |
author |
Capelo, Sofia |
author_facet |
Capelo, Sofia Menino Homem, P. Cavalheiro, J. Fonseca, I.T. E. |
author_role |
author |
author2 |
Menino Homem, P. Cavalheiro, J. Fonseca, I.T. E. |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Capelo, Sofia Menino Homem, P. Cavalheiro, J. Fonseca, I.T. E. |
dc.subject.por.fl_str_mv |
Silver Chapel Museum Tarnishing layer LSV Atmospheric pollutants |
topic |
Silver Chapel Museum Tarnishing layer LSV Atmospheric pollutants |
description |
The potentialities of linear sweep voltammetry (LSV) for the characterization of the tarnish layer formed on pure and sterling silver samples exposed in the chapel and in the museum, at the Cathedral of Porto, in Portugal, are well demonstrated in this study. The technique allows the identification of the constituents of the thin tarnishing layers and also its relative abundance. A much more complex composition than the silver sulphide commonly associated with silver tarnish has been found, namely, silver chlorides, silver oxides and minor amounts of silver sulphide on the pure silver, plus copper oxides and a mixed copper-silver sulphide on the sterling silver samples. The tarnishing films were very thin mainly composed by silver chloride and silver oxides layers with thicknesses ranging between 0.22 and 9.63 nm. |
publishDate |
2012 |
dc.date.none.fl_str_mv |
2012-09-28T00:00:00Z 2013-01-28T15:51:45Z 2013-01-28 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10174/7831 http://hdl.handle.net/10174/7831 https://doi.org/10.1007/s10008-012-1884-3 |
url |
http://hdl.handle.net/10174/7831 https://doi.org/10.1007/s10008-012-1884-3 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
223-234 1432-8488 17 J Solid State Electrochem scapelo@uevora.pt nd nd itfonseca@fc.ul.pt |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.publisher.none.fl_str_mv |
Springer |
publisher.none.fl_str_mv |
Springer |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
|
_version_ |
1799136506653179904 |