Please use this identifier to cite or link to this item: http://nopr.niscair.res.in/handle/123456789/45475
Title: Studies on corrosion inhibitory action of Ocimum sanctum (Tulsi) leaves extract in mild steel corrosion induced by Desulfovibrio desulfuricans
Authors: Chaithra, S
Gupta, Apeksha
Manivannan, R
Victoria, S Noyel
Keywords: Ocimum sanctum;Biocorrosion;Impedance;Polarization;Desulfovibrio desulfuricans
Issue Date: Sep-2018
Publisher: NISCAIR-CSIR, India
Abstract: Studies on the effect of Ocimum sanctum (Tulsi) leaves extract as corrosion inhibitor for mild steel corrosion caused by Desulfovibrio desulfuricans has been carried out. The extract provides 74% inhibition efficiency and is effective up to two weeks. Potentiodynamic polarization studies show the occurrence of pitting corrosion. The electrochemical impedance spectroscopy studies reveal that the nature of the biofilm formed changes continuously. The scanning electron microscopy studies on samples immersed for different durations indicate two layers of different morphologies formed at the end of third and fourth weeks in the uninhibited sample. Energy dispersive x-ray diffraction studies show an increase in sulfide content in uninhibited sample indicating formation of corrosion products.
Page(s): 441-450
URI: http://nopr.niscair.res.in/handle/123456789/45475
ISSN: 0975-0991 (Online); 0971-457X (Print)
Appears in Collections:IJCT Vol.25(5) [September 2018]

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