The Inhibitory Action of the Extracts of Adathoda vasica, Eclipta alba, and Centella asiatica on the Corrosion of Mild Steel in Hydrochloric Acid Medium : A Comparative Study
المؤلفون المشاركون
المصدر
International Journal of Corrosion
العدد
المجلد 2012، العدد 2012 (31 ديسمبر/كانون الأول 2012)، ص ص. 1-13، 13ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2011-09-13
دولة النشر
مصر
عدد الصفحات
13
التخصصات الرئيسية
الملخص EN
The Inhibitive action of the extracts of Adathoda vasica, Eclipta alba, and Centella asiatica on the corrosion of mild steel in 1N HCl has been studied using weight loss method, electrochemical methods, and hydrogen permeation method.
Polarization method indicates that the plant extracts are under mixed control, that is, promoting retardation of both anodic and cathodic reactions.
The impedance method reveals that charge-transfer process controls the corrosion of mild steel.
The plant extracts obey Langmuir adsorption isotherm.
Theoretical fitting of the corrosion data to the kinetic-thermodynamic model was tested to show the nature of adsorption.
Physisorption mechanism has been proposed for the inhibition action of these plant extracts.
The protective film formed on the surface was confirmed by SEM.
From hydrogen permeation method, all the plant extracts were able to reduce the permeation current.
Results obtained in all three methods were very much in good agreement in the order Eclipta alba > Adathoda vasica > Centella asiatica, and, among the three plant extracts studied, the maximum inhibition efficiency was found in Eclipta alba which showed 99.6% inhibition efficiency at 8.0% v/v concentration of the extract.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Shyamala, M.& Kasthuri, P. K.. 2011. The Inhibitory Action of the Extracts of Adathoda vasica, Eclipta alba, and Centella asiatica on the Corrosion of Mild Steel in Hydrochloric Acid Medium : A Comparative Study. International Journal of Corrosion،Vol. 2012, no. 2012, pp.1-13.
https://search.emarefa.net/detail/BIM-503447
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Shyamala, M.& Kasthuri, P. K.. The Inhibitory Action of the Extracts of Adathoda vasica, Eclipta alba, and Centella asiatica on the Corrosion of Mild Steel in Hydrochloric Acid Medium : A Comparative Study. International Journal of Corrosion No. 2012 (2012), pp.1-13.
https://search.emarefa.net/detail/BIM-503447
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Shyamala, M.& Kasthuri, P. K.. The Inhibitory Action of the Extracts of Adathoda vasica, Eclipta alba, and Centella asiatica on the Corrosion of Mild Steel in Hydrochloric Acid Medium : A Comparative Study. International Journal of Corrosion. 2011. Vol. 2012, no. 2012, pp.1-13.
https://search.emarefa.net/detail/BIM-503447
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-503447
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
تقوم هذه الخدمة بالتحقق من التشابه أو الانتحال في الأبحاث والمقالات العلمية والأطروحات الجامعية والكتب والأبحاث باللغة العربية، وتحديد درجة التشابه أو أصالة الأعمال البحثية وحماية ملكيتها الفكرية. تعرف اكثر