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<identifier>oai:HAL:hal-01097107v1</identifier>
<datestamp>2018-01-11</datestamp>
<setSpec>type:ART</setSpec>
<setSpec>subject:sdv</setSpec>
<setSpec>subject:chim</setSpec>
<setSpec>collection:AGROPARISTECH</setSpec>
<setSpec>collection:CIRAD</setSpec>
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<metadata><dc>
<publisher>HAL CCSD</publisher>
<title lang=en>Corrosion studies of C38 steel by alkaloids extract of a tropical plant type</title>
<creator>Faustin, M.</creator>
<creator>Lebrini, M.</creator>
<creator>Robert, Florent</creator>
<creator>Roos, C.</creator>
<contributor>Ecologie des forêts de Guyane (ECOFOG) ; Centre de Coopération Internationale en Recherche Agronomique pour le Développement (CIRAD) - Institut National de la Recherche Agronomique (INRA) - Université des Antilles et de la Guyane (UAG) - AgroParisTech - Centre National de la Recherche Scientifique (CNRS)</contributor>
<description>International audience</description>
<source>International journal of electrochemical science</source>
<identifier>hal-01097107</identifier>
<identifier>https://hal-agroparistech.archives-ouvertes.fr/hal-01097107</identifier>
<source>https://hal-agroparistech.archives-ouvertes.fr/hal-01097107</source>
<source>International journal of electrochemical science, 2011, 6, pp.4095-4113</source>
<language>en</language>
<subject lang=en>C38 steel</subject>
<subject lang=en>Acidic media</subject>
<subject lang=en>Corrosion inhibitor</subject>
<subject lang=en>Plant extract</subject>
<subject>[SDV] Life Sciences [q-bio]</subject>
<subject>[CHIM] Chemical Sciences</subject>
<type>info:eu-repo/semantics/article</type>
<type>Journal articles</type>
<description lang=en>Alkaloids extract of Aspidosperma album was tested as corrosion inhibitor for C38 steel in 1 M HCl by using polarization and electrochemical impedance spectroscopy (EIS). Potentiodynamic polarization curves indicated that the plant extract behaves as mixed-type inhibitors. Impedance measurements showed that the double-layer capacitance decreased and charge-transfer resistance increased with increase in the inhibitors concentration and hence increasing in inhibition efficiency. The effect of temperature on the corrosion behavior of C38 steel in 1 M HCl with and without addition of plant extract was studied in the temperature range 25 – 55 °C. The adsorption of the inhibitor molecules was in accordance with the Langmuir adsorption isotherm. The results obtained show that this plant extract could serve as an effective inhibitor for the corrosion of C38 steel in hydrochloric acid.</description>
<date>2011</date>
</dc>
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