In situ surface film evolution during Mg aqueous corrosion in presence of selected carboxylates
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10773/37304 |
Resumo: | Mechanisms of inhibition of Mg aqueous corrosion in presence of chloride by sodium salicylate (Sal), 2,5-pyridinedicarboxylate (PDC) and fumarate (Fum) were studied by in situ Raman spectroscopy, ATR-FTIR, GD-OES and hydrogen collection. In situ detected surface films were composed by Mg(OH)2 nano-crystals and included inhibitors. All carboxylates significantly modified Mg(OH)2 growth kinetics as well as pevented chloride incorporation in the film. Vibrational spectra of the surface films demonstrated specific interactions between the carboxylates and the surface: adsorption of Sal and Fum on the oxide/hydroxide, precipitation of coordination polymer by PDC, dissolution of iron inclusions via formation of iron-Sal soluble complexes. |
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In situ surface film evolution during Mg aqueous corrosion in presence of selected carboxylatesMgIn situ Raman spectroscopyGlow discharge optical emission spectroscopyATR-FTIROrganic inhibitorsSurface filmMechanisms of inhibition of Mg aqueous corrosion in presence of chloride by sodium salicylate (Sal), 2,5-pyridinedicarboxylate (PDC) and fumarate (Fum) were studied by in situ Raman spectroscopy, ATR-FTIR, GD-OES and hydrogen collection. In situ detected surface films were composed by Mg(OH)2 nano-crystals and included inhibitors. All carboxylates significantly modified Mg(OH)2 growth kinetics as well as pevented chloride incorporation in the film. Vibrational spectra of the surface films demonstrated specific interactions between the carboxylates and the surface: adsorption of Sal and Fum on the oxide/hydroxide, precipitation of coordination polymer by PDC, dissolution of iron inclusions via formation of iron-Sal soluble complexes.Elsevier2023-04-24T09:32:41Z2020-07-15T00:00:00Z2020-07-15info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10773/37304eng0010-938X10.1016/j.corsci.2020.108484Maltseva, A.Lamaka, S.V.Yasakau, K.A.Mei, DiKurchavov, D.Zheludkevich, M.L.Lefèvre, G.Volovitch, P.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:RCAAP2024-02-22T12:11:59Zoai:ria.ua.pt:10773/37304Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T03:07:55.589431Repositório 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 |
In situ surface film evolution during Mg aqueous corrosion in presence of selected carboxylates |
title |
In situ surface film evolution during Mg aqueous corrosion in presence of selected carboxylates |
spellingShingle |
In situ surface film evolution during Mg aqueous corrosion in presence of selected carboxylates Maltseva, A. Mg In situ Raman spectroscopy Glow discharge optical emission spectroscopy ATR-FTIR Organic inhibitors Surface film |
title_short |
In situ surface film evolution during Mg aqueous corrosion in presence of selected carboxylates |
title_full |
In situ surface film evolution during Mg aqueous corrosion in presence of selected carboxylates |
title_fullStr |
In situ surface film evolution during Mg aqueous corrosion in presence of selected carboxylates |
title_full_unstemmed |
In situ surface film evolution during Mg aqueous corrosion in presence of selected carboxylates |
title_sort |
In situ surface film evolution during Mg aqueous corrosion in presence of selected carboxylates |
author |
Maltseva, A. |
author_facet |
Maltseva, A. Lamaka, S.V. Yasakau, K.A. Mei, Di Kurchavov, D. Zheludkevich, M.L. Lefèvre, G. Volovitch, P. |
author_role |
author |
author2 |
Lamaka, S.V. Yasakau, K.A. Mei, Di Kurchavov, D. Zheludkevich, M.L. Lefèvre, G. Volovitch, P. |
author2_role |
author author author author author author author |
dc.contributor.author.fl_str_mv |
Maltseva, A. Lamaka, S.V. Yasakau, K.A. Mei, Di Kurchavov, D. Zheludkevich, M.L. Lefèvre, G. Volovitch, P. |
dc.subject.por.fl_str_mv |
Mg In situ Raman spectroscopy Glow discharge optical emission spectroscopy ATR-FTIR Organic inhibitors Surface film |
topic |
Mg In situ Raman spectroscopy Glow discharge optical emission spectroscopy ATR-FTIR Organic inhibitors Surface film |
description |
Mechanisms of inhibition of Mg aqueous corrosion in presence of chloride by sodium salicylate (Sal), 2,5-pyridinedicarboxylate (PDC) and fumarate (Fum) were studied by in situ Raman spectroscopy, ATR-FTIR, GD-OES and hydrogen collection. In situ detected surface films were composed by Mg(OH)2 nano-crystals and included inhibitors. All carboxylates significantly modified Mg(OH)2 growth kinetics as well as pevented chloride incorporation in the film. Vibrational spectra of the surface films demonstrated specific interactions between the carboxylates and the surface: adsorption of Sal and Fum on the oxide/hydroxide, precipitation of coordination polymer by PDC, dissolution of iron inclusions via formation of iron-Sal soluble complexes. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-07-15T00:00:00Z 2020-07-15 2023-04-24T09:32:41Z |
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/10773/37304 |
url |
http://hdl.handle.net/10773/37304 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
0010-938X 10.1016/j.corsci.2020.108484 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Elsevier |
publisher.none.fl_str_mv |
Elsevier |
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 |
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1799137733196644352 |