Calcium monofluorophosphate: a new class of corrosion inhibitors in NaCl medium
Identifieur interne : 000916 ( Main/Exploration ); précédent : 000915; suivant : 000917Calcium monofluorophosphate: a new class of corrosion inhibitors in NaCl medium
Auteurs : M. R. Laamari [Maroc] ; A. Derja [Maroc] ; J. Benzakour [Maroc] ; M. Berraho [Maroc]Source :
- Journal of electroanalytical chemistry:(1992)
Descripteurs français
- Pascal (Inist)
English descriptors
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Abstract
The effect of a new class of corrosion inhibitors, namely the monofluorophosphate of calcium, on the corrosion of iron, nickel, and copper in 3% NaCI solution has been investigated using potentiodynamic polarisation, measurement of open circuit potential, X-ray photoemission spectroscopy (XPS), and scanning electron microscope (SEM) techniques. The addition of an increasing concentration of calcium monofluorophosphate causes a shift of the corrosion potential in the positive direction, with a decrease of the anodic current density. The adsorption characteristics of this compound on the metal surface play a significant role in the inhibition process.
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R." last="Laamari">M. R. Laamari</name><affiliation wicri:level="3"><inist:fA14 i1="01"><s1>Department of Chemistry, Faculty of Sciences Semlalia, Cadi Ayyad University, B.P. 2390</s1><s2>Marrakech</s2><s3>MAR</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ></inist:fA14><country>Maroc</country><placeName><settlement type="city">Marrakech</settlement><region nuts="2">Marrakech-Tensift-Al Haouz</region></placeName></affiliation></author><author><name sortKey="Derja, A" sort="Derja, A" uniqKey="Derja A" first="A." last="Derja">A. Derja</name><affiliation wicri:level="3"><inist:fA14 i1="01"><s1>Department of Chemistry, Faculty of Sciences Semlalia, Cadi Ayyad University, B.P. 2390</s1><s2>Marrakech</s2><s3>MAR</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ></inist:fA14><country>Maroc</country><placeName><settlement type="city">Marrakech</settlement><region nuts="2">Marrakech-Tensift-Al Haouz</region></placeName></affiliation></author><author><name sortKey="Benzakour, J" sort="Benzakour, J" uniqKey="Benzakour J" first="J." last="Benzakour">J. Benzakour</name><affiliation wicri:level="3"><inist:fA14 i1="01"><s1>Department of Chemistry, Faculty of Sciences Semlalia, Cadi Ayyad University, B.P. 2390</s1><s2>Marrakech</s2><s3>MAR</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ></inist:fA14><country>Maroc</country><placeName><settlement type="city">Marrakech</settlement><region nuts="2">Marrakech-Tensift-Al Haouz</region></placeName></affiliation></author><author><name sortKey="Berraho, M" sort="Berraho, M" uniqKey="Berraho M" first="M." last="Berraho">M. Berraho</name><affiliation wicri:level="3"><inist:fA14 i1="01"><s1>Department of Chemistry, Faculty of Sciences Semlalia, Cadi Ayyad University, B.P. 2390</s1><s2>Marrakech</s2><s3>MAR</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ></inist:fA14><country>Maroc</country><placeName><settlement type="city">Marrakech</settlement><region nuts="2">Marrakech-Tensift-Al Haouz</region></placeName></affiliation></author></analytic><series><title level="j" type="main">Journal of electroanalytical chemistry:(1992)</title></series></biblStruct></sourceDesc><seriesStmt><title level="j" type="main">Journal of electroanalytical chemistry:(1992)</title></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Aqueous solution</term><term>Armco iron</term><term>Calcium Fluophosphates</term><term>Corrosion inhibition</term><term>Corrosion potential</term><term>Corrosion protection</term><term>Electrochemical corrosion</term><term>Photoelectron spectrometry</term><term>Potentiodynamic method</term><term>Sodium chloride</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Corrosion électrochimique</term><term>Fer armco</term><term>Solution aqueuse</term><term>Sodium chlorure</term><term>Potentiel corrosion</term><term>Protection corrosion</term><term>Inhibition corrosion</term><term>Calcium Fluorophosphate</term><term>Méthode potentiodynamique</term><term>Spectrométrie photoélectron</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">The effect of a new class of corrosion inhibitors, namely the monofluorophosphate of calcium, on the corrosion of iron, nickel, and copper in 3% NaCI solution has been investigated using potentiodynamic polarisation, measurement of open circuit potential, X-ray photoemission spectroscopy (XPS), and scanning electron microscope (SEM) techniques. The addition of an increasing concentration of calcium monofluorophosphate causes a shift of the corrosion potential in the positive direction, with a decrease of the anodic current density. The adsorption characteristics of this compound on the metal surface play a significant role in the inhibition process.</div></front></TEI><affiliations><list><country><li>Maroc</li></country><region><li>Marrakech-Tensift-Al Haouz</li></region><settlement><li>Marrakech</li></settlement></list><tree><country name="Maroc"><region name="Marrakech-Tensift-Al Haouz"><name sortKey="Laamari, M R" sort="Laamari, M R" uniqKey="Laamari M" first="M. R." last="Laamari">M. R. Laamari</name></region><name sortKey="Benzakour, J" sort="Benzakour, J" uniqKey="Benzakour J" first="J." last="Benzakour">J. Benzakour</name><name sortKey="Berraho, M" sort="Berraho, M" uniqKey="Berraho M" first="M." last="Berraho">M. Berraho</name><name sortKey="Derja, A" sort="Derja, A" uniqKey="Derja A" first="A." last="Derja">A. 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