Author
Listed:
- PANDIAN BOTHI RAJA
(Department of Chemistry, Gandhigram Rural University, Gandhigram 624 302, Tamil Nadu, India)
- MATHUR GOPALAKRISHNAN SETHURAMAN
(Department of Chemistry, Gandhigram Rural University, Gandhigram 624 302, Tamil Nadu, India)
Abstract
The extract ofDatura stramoniumhas been studied as a possible source of green inhibitor for corrosion of mild steel (MS) inHClandH2SO4media at different temperatures. The anticorrosion effect was evaluated by conventional weight loss studies, electrochemical studies viz., Tafel polarization, ac impedance, and SEM studies. The studies reveal that the plant extract acts as a good inhibitor in both the acid media and better inH2SO4medium. Tafel polarization method indicate that the plant extract behaves as a mixed mode inhibitor. Double layer capacitance and charge transfer resistance values derived from Nyquist plots obtained from ac impedance studies give supporting evidence for the anticorrosive effect. The inhibitive effect may be attributed to the adsorption of the inhibitor on the surface of MS, following Temkin adsorption isotherm. Increase of inhibition efficiency with increase of temperature along with Ea values serve as a proof for chemisorption. SEM studies provide the confirmatory evidence for the protection of MS by the green inhibitor. The study reveals the potential ofD. stramoniumfor combating corrosion which may be due to the adsorption of alkaloids and other phytoconstituents.
Suggested Citation
Pandian Bothi Raja & Mathur Gopalakrishnan Sethuraman, 2007.
"Studies On The Inhibitive Effect Ofdatura Stramoniumextract On The Acid Corrosion Of Mild Steel,"
Surface Review and Letters (SRL), World Scientific Publishing Co. Pte. Ltd., vol. 14(06), pages 1157-1164.
Handle:
RePEc:wsi:srlxxx:v:14:y:2007:i:06:n:s0218625x07010743
DOI: 10.1142/S0218625X07010743
Download full text from publisher
As the access to this document is restricted, you may want to
for a different version of it.
Corrections
All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:wsi:srlxxx:v:14:y:2007:i:06:n:s0218625x07010743. See general information about how to correct material in RePEc.
If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.
We have no bibliographic references for this item. You can help adding them by using this form .
If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.
For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Tai Tone Lim (email available below). General contact details of provider: http://www.worldscinet.com/srl/srl.shtml .
Please note that corrections may take a couple of weeks to filter through
the various RePEc services.