Publicação
Corrosion Inhibition and Adsorption of Anthocleista Djalonesis Leaf Extract on the Acid Corrosion of Mild Steel
| Resumo: | Aqueous extracts of the leaves of Anthocleista djalonesis (AD) have been investigated as non toxic corrosion inhibitors for mild steel in acidic environments (1 M HCl and 0.5 M H2SO4, respectively). Corrosion rates were evaluated at 30 °C using the weight loss, electrochemical impedance spectroscopy and potentiodynamic polarization techniques. AD extract was found to inhibit mild steel corrosion in both acidic media via adsorption of the extract organic matter on the metal/solution interface. Polarization data indicate that the extract functioned via a mixed inhibition mechanism, affecting both the cathodic and anodic partial reactions of the corrosion process. Molecular dynamics (MD) simulations were performed to illustrate the adsorption process of some specific components of the extract. |
|---|---|
| Autores principais: | Ogukwe,C.E. |
| Outros Autores: | Akalezi,C.O.; Chidiebere,M. A.; Oguzie,K.L.; Iheabunike,Z.O.; Oguziea,E.E. |
| Assunto: | corrosion inhibition biomass extract Anthocleista djalonesis adsorption molecular dynamics simulations |
| Ano: | 2012 |
| País: | Portugal |
| Tipo de documento: | artigo |
| Tipo de acesso: | acesso aberto |
| Instituição associada: | Fundação para a Ciência e Tecnologia |
| Idioma: | inglês |
| Origem: | SciELO Portugal |
| _version_ | 1868441711120744448 |
|---|---|
| author | Ogukwe,C.E. |
| author2 | Akalezi,C.O. Chidiebere,M. A. Oguzie,K.L. Iheabunike,Z.O. Oguziea,E.E. |
| author2_role | author author author author author |
| author_facet | Ogukwe,C.E. Akalezi,C.O. Chidiebere,M. A. Oguzie,K.L. Iheabunike,Z.O. Oguziea,E.E. |
| author_role | author |
| country_str | PT |
| creators_json_txt | [{\"Person.name\":\"Ogukwe,C.E.\"},{\"Person.name\":\"Akalezi,C.O.\"},{\"Person.name\":\"Chidiebere,M. A.\"},{\"Person.name\":\"Oguzie,K.L.\"},{\"Person.name\":\"Iheabunike,Z.O.\"},{\"Person.name\":\"Oguziea,E.E.\"}] |
| datacite.creators.creator.creatorName.fl_str_mv | Ogukwe,C.E. Akalezi,C.O. Chidiebere,M. A. Oguzie,K.L. Iheabunike,Z.O. Oguziea,E.E. |
| datacite.rights.fl_str_mv | http://purl.org/coar/access_right/c_abf2 |
| datacite.subjects.subject.fl_str_mv | corrosion inhibition biomass extract Anthocleista djalonesis adsorption molecular dynamics simulations |
| datacite.titles.title.fl_str_mv | Corrosion Inhibition and Adsorption of Anthocleista Djalonesis Leaf Extract on the Acid Corrosion of Mild Steel |
| dc.creator.none.fl_str_mv | Ogukwe,C.E. Akalezi,C.O. Chidiebere,M. A. Oguzie,K.L. Iheabunike,Z.O. Oguziea,E.E. |
| dc.format.none.fl_str_mv | text/html |
| dc.identifier.none.fl_str_mv | http://scielo.pt/scielo.php?script=sci_arttext&pid=S0872-19042012000300004 |
| dc.language.none.fl_str_mv | eng |
| dc.publisher.none.fl_str_mv | Sociedade Portuguesa de Electroquímica |
| dc.rights.none.fl_str_mv | http://purl.org/coar/access_right/c_abf2 |
| dc.source.none.fl_str_mv | Portugaliae Electrochimica Acta v.30 n.3 2012 |
| dc.subject.none.fl_str_mv | corrosion inhibition biomass extract Anthocleista djalonesis adsorption molecular dynamics simulations |
| dc.title.fl_str_mv | Corrosion Inhibition and Adsorption of Anthocleista Djalonesis Leaf Extract on the Acid Corrosion of Mild Steel |
| dc.type.none.fl_str_mv | http://purl.org/coar/resource_type/c_6501 |
| description | Aqueous extracts of the leaves of Anthocleista djalonesis (AD) have been investigated as non toxic corrosion inhibitors for mild steel in acidic environments (1 M HCl and 0.5 M H2SO4, respectively). Corrosion rates were evaluated at 30 °C using the weight loss, electrochemical impedance spectroscopy and potentiodynamic polarization techniques. AD extract was found to inhibit mild steel corrosion in both acidic media via adsorption of the extract organic matter on the metal/solution interface. Polarization data indicate that the extract functioned via a mixed inhibition mechanism, affecting both the cathodic and anodic partial reactions of the corrosion process. Molecular dynamics (MD) simulations were performed to illustrate the adsorption process of some specific components of the extract. |
| dirty | 0 |
| eu_rights_str_mv | openAccess |
| format | article |
| id | scielopt_fee58e1bba41b60adc70fa4c56cdf791 |
| identifier.url.fl_str_mv | http://scielo.pt/scielo.php?script=sci_arttext&pid=S0872-19042012000300004 |
| instacron_str | SciELO |
| institution | Fundação para a Ciência e Tecnologia |
| instname_str | Fundação para a Ciência e Tecnologia |
| language | eng |
| network_acronym_str | scielopt |
| network_name_str | SciELO Portugal |
| oai_identifier_str | oai:scielo:S0872-19042012000300004 |
| organization_str_mv | urn:organizationAcronym:scielo |
| person_str_mv | Ogukwe,C.E. Akalezi,C.O. Chidiebere,M. A. Oguzie,K.L. Iheabunike,Z.O. Oguziea,E.E. |
| publishDate | 2012 |
| publisher.none.fl_str_mv | Sociedade Portuguesa de Electroquímica |
| reponame_str | SciELO Portugal |
| repository_id_str | urn:repositoryAcronym:scielopt |
| service_str_mv | urn:repositoryAcronym:scielopt |
| spelling | Corrosion Inhibition and Adsorption of Anthocleista Djalonesis Leaf Extract on the Acid Corrosion of Mild SteelOgukwe,C.E.Akalezi,C.O.Chidiebere,M. A.Oguzie,K.L.Iheabunike,Z.O.Oguziea,E.E.corrosion inhibitionbiomass extractAnthocleista djalonesisadsorptionmolecular dynamics simulationsopen accesshttp://purl.org/coar/access_right/c_abf2http://scielo.pt/scielo.php?script=sci_arttext&pid=S0872-19042012000300004URLhttp://scielo.pt/scielo.php?script=sci_arttext&pid=S0872-19042012000300004URLHasVersion2012-05-01Aqueous extracts of the leaves of Anthocleista djalonesis (AD) have been investigated as non toxic corrosion inhibitors for mild steel in acidic environments (1 M HCl and 0.5 M H2SO4, respectively). Corrosion rates were evaluated at 30 °C using the weight loss, electrochemical impedance spectroscopy and potentiodynamic polarization techniques. AD extract was found to inhibit mild steel corrosion in both acidic media via adsorption of the extract organic matter on the metal/solution interface. Polarization data indicate that the extract functioned via a mixed inhibition mechanism, affecting both the cathodic and anodic partial reactions of the corrosion process. Molecular dynamics (MD) simulations were performed to illustrate the adsorption process of some specific components of the extract.Sociedade Portuguesa de ElectroquímicaPortugaliae Electrochimica Acta v.30 n.3 2012text/htmlengjournal articlehttp://purl.org/coar/resource_type/c_6501literature |
| spellingShingle | Corrosion Inhibition and Adsorption of Anthocleista Djalonesis Leaf Extract on the Acid Corrosion of Mild Steel Ogukwe,C.E. corrosion inhibition biomass extract Anthocleista djalonesis adsorption molecular dynamics simulations |
| status | SINGLETON |
| subject.fl_str_mv | corrosion inhibition biomass extract Anthocleista djalonesis adsorption molecular dynamics simulations |
| title | Corrosion Inhibition and Adsorption of Anthocleista Djalonesis Leaf Extract on the Acid Corrosion of Mild Steel |
| title_full | Corrosion Inhibition and Adsorption of Anthocleista Djalonesis Leaf Extract on the Acid Corrosion of Mild Steel |
| title_fullStr | Corrosion Inhibition and Adsorption of Anthocleista Djalonesis Leaf Extract on the Acid Corrosion of Mild Steel |
| title_full_unstemmed | Corrosion Inhibition and Adsorption of Anthocleista Djalonesis Leaf Extract on the Acid Corrosion of Mild Steel |
| title_short | Corrosion Inhibition and Adsorption of Anthocleista Djalonesis Leaf Extract on the Acid Corrosion of Mild Steel |
| title_sort | Corrosion Inhibition and Adsorption of Anthocleista Djalonesis Leaf Extract on the Acid Corrosion of Mild Steel |
| topic | corrosion inhibition biomass extract Anthocleista djalonesis adsorption molecular dynamics simulations |
| topic_facet | corrosion inhibition biomass extract Anthocleista djalonesis adsorption molecular dynamics simulations |
| url | http://scielo.pt/scielo.php?script=sci_arttext&pid=S0872-19042012000300004 |
| visible | 1 |