Corrosion inhibition of amorphous FeBSiC alloy in 1 m HCl by 3-amino-1,2,4-triazole
Identifieur interne : 000B36 ( Istex/Corpus ); précédent : 000B35; suivant : 000B37Corrosion inhibition of amorphous FeBSiC alloy in 1 m HCl by 3-amino-1,2,4-triazole
Auteurs : S. Kertit ; F. Chaouket ; A. Srhiri ; M. KeddamSource :
- Journal of Applied Electrochemistry [ 0021-891X ] ; 1994-11-01.
Abstract
Abstract: The mode of corrosion inhibition of amorphous FeBSiC alloy due to 3-amino-1,2,4-triazole (ATA) in molar HCl is studied through weight loss and electrochemical steady-state and transient measurements. From the comparison of results with those obtained using other ‘triazole’ type-organic compounds, it is shown that ATA is the best inhibitor. ATA acts on the cathodic reaction without changing the mechanism of the hydrogen evolution reaction. Impedance studies show that ATA acts by formation of a 3D compact and protective adsorbed inhibition film at the metal surface which is similar to a paint or polymer film. A correlation between the inhibition efficiency of ATA and its molecular structure is established. A schematic representation of surface coverage due to different adsorption modes of ATA is presented. The schematic representation proposed explains why the mechanism of hydrogen reduction is the same in the absence and in the presence of ATA.
Url:
DOI: 10.1007/BF00241312
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Kertit</name><affiliation><mods:affiliation>Laboratoire de Physico-Chimie des Matériaux, Ecole Normale Supérieure de Takaddoum, BP 5118, Rabat, Morocco</mods:affiliation></affiliation></author><author><name sortKey="Chaouket, F" sort="Chaouket, F" uniqKey="Chaouket F" first="F." last="Chaouket">F. Chaouket</name><affiliation><mods:affiliation>Laboratoire d'Electrochimie-Corrosion, Faculté des Sciences de Rabat, Morocco</mods:affiliation></affiliation></author><author><name sortKey="Srhiri, A" sort="Srhiri, A" uniqKey="Srhiri A" first="A." last="Srhiri">A. Srhiri</name><affiliation><mods:affiliation>Laboratoire d'Electrochimie, Faculté des Sciences de Kénitra, Morocco</mods:affiliation></affiliation></author><author><name sortKey="Keddam, M" sort="Keddam, M" uniqKey="Keddam M" first="M." last="Keddam">M. Keddam</name><affiliation><mods:affiliation>Laboratoire de Physique des Liquides et Electrochimie UPR15 du CNRS, Université Pierre et Marie Curie, 4 place Jussieu, tour 22, 75252, Paris, Cedex 05, France</mods:affiliation></affiliation></author></analytic><monogr></monogr><series><title level="j">Journal of Applied Electrochemistry</title><title level="j" type="abbrev">J Appl Electrochem</title><idno type="ISSN">0021-891X</idno><idno type="eISSN">1572-8838</idno><imprint><publisher>Kluwer Academic Publishers</publisher><pubPlace>Dordrecht</pubPlace><date type="published" when="1994-11-01">1994-11-01</date><biblScope unit="volume">24</biblScope><biblScope unit="issue">11</biblScope><biblScope unit="page" from="1139">1139</biblScope><biblScope unit="page" to="1145">1145</biblScope></imprint><idno type="ISSN">0021-891X</idno></series><idno type="istex">2305219696DF1AE2CF7A769238732A982838FAA8</idno><idno type="DOI">10.1007/BF00241312</idno><idno type="ArticleID">BF00241312</idno><idno type="ArticleID">Art8</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0021-891X</idno></seriesStmt></fileDesc><profileDesc><textClass></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Abstract: The mode of corrosion inhibition of amorphous FeBSiC alloy due to 3-amino-1,2,4-triazole (ATA) in molar HCl is studied through weight loss and electrochemical steady-state and transient measurements. From the comparison of results with those obtained using other ‘triazole’ type-organic compounds, it is shown that ATA is the best inhibitor. ATA acts on the cathodic reaction without changing the mechanism of the hydrogen evolution reaction. Impedance studies show that ATA acts by formation of a 3D compact and protective adsorbed inhibition film at the metal surface which is similar to a paint or polymer film. A correlation between the inhibition efficiency of ATA and its molecular structure is established. A schematic representation of surface coverage due to different adsorption modes of ATA is presented. The schematic representation proposed explains why the mechanism of hydrogen reduction is the same in the absence and in the presence of ATA.</div></front></TEI><istex><corpusName>springer</corpusName><author><json:item><name>S. 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Impedance studies show that ATA acts by formation of a 3D compact and protective adsorbed inhibition film at the metal surface which is similar to a paint or polymer film. A correlation between the inhibition efficiency of ATA and its molecular structure is established. A schematic representation of surface coverage due to different adsorption modes of ATA is presented. 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From the comparison of results with those obtained using other ‘triazole’ type-organic compounds, it is shown that ATA is the best inhibitor. ATA acts on the cathodic reaction without changing the mechanism of the hydrogen evolution reaction. Impedance studies show that ATA acts by formation of a 3D compact and protective adsorbed inhibition film at the metal surface which is similar to a paint or polymer film. A correlation between the inhibition efficiency of ATA and its molecular structure is established. A schematic representation of surface coverage due to different adsorption modes of ATA is presented. 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Supérieure de Takaddoum</OrgName><OrgAddress><Postcode>BP 5118</Postcode><City>Rabat</City><Country>Morocco</Country></OrgAddress></Affiliation><Affiliation ID="Aff2"><OrgDivision>Laboratoire d'Electrochimie-Corrosion</OrgDivision><OrgName>Faculté des Sciences de Rabat</OrgName><OrgAddress><Country>Morocco</Country></OrgAddress></Affiliation><Affiliation ID="Aff3"><OrgDivision>Laboratoire d'Electrochimie</OrgDivision><OrgName>Faculté des Sciences de Kénitra</OrgName><OrgAddress><Country>Morocco</Country></OrgAddress></Affiliation><Affiliation ID="Aff4"><OrgDivision>Laboratoire de Physique des Liquides et Electrochimie UPR15 du CNRS</OrgDivision><OrgName>Université Pierre et Marie Curie</OrgName><OrgAddress><Street>4 place Jussieu, tour 22</Street><Postcode>75252</Postcode><City>Paris, Cedex 05</City><Country>France</Country></OrgAddress></Affiliation></AuthorGroup><Abstract ID="Abs1" Language="En"><Heading>Abstract</Heading><Para>The mode of corrosion inhibition of amorphous FeBSiC alloy due to 3-amino-1,2,4-triazole (ATA) in molar HCl is studied through weight loss and electrochemical steady-state and transient measurements. From the comparison of results with those obtained using other ‘triazole’ type-organic compounds, it is shown that ATA is the best inhibitor. ATA acts on the cathodic reaction without changing the mechanism of the hydrogen evolution reaction. Impedance studies show that ATA acts by formation of a 3D compact and protective adsorbed inhibition film at the metal surface which is similar to a paint or polymer film. A correlation between the inhibition efficiency of ATA and its molecular structure is established. A schematic representation of surface coverage due to different adsorption modes of ATA is presented. 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From the comparison of results with those obtained using other ‘triazole’ type-organic compounds, it is shown that ATA is the best inhibitor. ATA acts on the cathodic reaction without changing the mechanism of the hydrogen evolution reaction. Impedance studies show that ATA acts by formation of a 3D compact and protective adsorbed inhibition film at the metal surface which is similar to a paint or polymer film. A correlation between the inhibition efficiency of ATA and its molecular structure is established. A schematic representation of surface coverage due to different adsorption modes of ATA is presented. 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