Corrosion inhibition of mild steel in acidic solution by some oxo-triazole derivatives

The oxo-triazole derivative (DTP) was synthesized and its inhibiting action on the corrosion of mild steel in sulphuric acid was investigated by means of weight loss, potentiodynamic polarization, EIS and SEM. The results revealed that DTP was an excellent inhibitor and the inhibition efficiencies o...

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Bibliographic Details
Published in:Corrosion science 2009-11, Vol.51 (11), p.2588-2595
Main Authors: Tao, Zhihua, Zhang, Shengtao, Li, Weihua, Hou, Baorong
Format: Article
Language:English
Subjects:
Applied sciences
B. Electrochemical calculation
B. SEM
B. Weight loss
C. Acid corrosion
C. Kinetic parameters
Corrosion
Corrosion environments
Corrosion prevention
Exact sciences and technology
Metals. Metallurgy
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Summary:The oxo-triazole derivative (DTP) was synthesized and its inhibiting action on the corrosion of mild steel in sulphuric acid was investigated by means of weight loss, potentiodynamic polarization, EIS and SEM. The results revealed that DTP was an excellent inhibitor and the inhibition efficiencies obtained from weight loss experiment and electrochemical experiment were in good agreement. Potentiodynamic polarization studies clearly revealed that DTP acted essentially as the mixed-type inhibitor. Thermodynamic and kinetic parameters were obtained from weight loss of the different experimental temperatures, which suggested that at different temperatures (298–333 K) the adsorption of DTP on metal surface obeyed Langmuir adsorption isotherm model.
ISSN:0010-938X
1879-0496
DOI:10.1016/j.corsci.2009.06.042