Éditeur(s) : HAL CCSD Maney Publishing
Résumé : International audience
The strict environmental legislations and increasing ecological awareness among scientists have led to the development of “green” alternatives to mitigate corrosion. In the present work, literature on green corrosion inhibitors has been reviewed, and the salient features of our work on green corrosion inhibitors have been highlighted. Among the studied leaves, extract Andrographis paniculata showed better inhibition performance (98%) than the other leaves extract. Strychnos nuxvomica showed better inhibition (98%) than the other seed extracts. Moringa oleifera is reflected as a good corrosion inhibitor of mild steel in 1 M HCl with 98% inhibition efficiency among the studied fruits extract. Bacopa monnieri showed its maximum inhibition performance to be 95% at 600 ppm among the investigated stem extracts. All the reported plant extracts were found to inhibit the corrosion of mild steel in acid media.
ISSN: 1478-422X

hal-01097106
https://hal-agroparistech.archives-ouvertes.fr/hal-01097106
DOI : 10.1016/j.corsci.2010.10.006

Éditeur(s) : HAL CCSD Maney Publishing
Résumé : International audience
ISSN: 1478-422X

hal-01082607
https://hal-agroparistech.archives-ouvertes.fr/hal-01082607
DOI : 10.1016/j.corsci.2008.04.019

Éditeur(s) : HAL CCSD Elsevier
Résumé : International audience
The effect of alkaloid extracts from two Amazonian trees (Guatteria ouregou and Simira tinctoria) on low carbon steel corrosion was investigated in acidic solutions by using electrochemical techniques. All of these plant extracts inhibit the corrosion of low carbon steel in 0.1 M HCl solutions. As their concentration increases to 250 mg/L, the inhibition efficiencies of S. tinctoria and G. ouregou alkaloid extracts reach approximately 92% in 0.1 M HCl solutions. The adsorption of the inhibitor molecules was in accordance with the Langmuir adsorption isotherm. The results obtained show that these plant extracts could be serve as an effective inhibitor for the corrosion of low carbon steel in hydrochloric acid media. Furthermore, harmane was identified as the main component of S. tinctoria extract and that suggests that it is the active ingredient against corrosion of low carbon steel.
ISSN: 1567-1739

hal-01096888
https://hal-agroparistech.archives-ouvertes.fr/hal-01096888
DOI : 10.1016/j.cap.2010.11.038

Éditeur(s) : HAL CCSD
Résumé : International audience
International journal of electrochemical science

hal-01109736
https://hal-agroparistech.archives-ouvertes.fr/hal-01109736