A Novel Method for Corrosion Reaction Analysis by Fourier Transform Electrochemical Impedance Spectroscopy: Corrosion of 9Cr-1 Mo Ferritic Steel in 0.050 M H2SO4

2013 ◽  
Vol 25 (4) ◽  
pp. 1035-1043 ◽  
Author(s):  
Younghoon Ko ◽  
Indra B. Singh ◽  
Su-Moon Park
Keyword(s):  
Fourier Transform ◽  
Electrochemical Impedance Spectroscopy ◽  
Impedance Spectroscopy ◽  
Ferritic Steel ◽  
Electrochemical Impedance ◽  
Corrosion Reaction ◽  
Novel Method

The Effect of PH on the Efficiency of Isoniazid as Corrosion Inhibitors of Brass in 3.0% NaCl Solution

2011 ◽  
Vol 311-313 ◽  
pp. 657-661
Author(s):  
Xiao Hong Huang ◽  
Sheng Tao Zhang ◽  
Lian Yue Hu
Keyword(s):  
Weight Loss ◽  
Electrochemical Impedance Spectroscopy ◽  
Impedance Spectroscopy ◽  
Corrosion Inhibitors ◽  
Inhibition Efficiency ◽  
Electrochemical Impedance ◽  
Nacl Solution ◽  
Solution Ph ◽  
Chemical Corrosion ◽  
Corrosion Reaction

This paper investigates the Isoniazid as chemical corrosion inhibitors for brass in 3.0% NaCl solution of different pH, employing polarization curves, electrochemical impedance spectroscopy(EIS), weight loss, and SEM. It is found that the inhibition efficiency of Isoniazid enhances with the increasing of the solution pH, from about 71% at pH 6.5 to 92% at pH 10.5. This improvement is attributed to the stronger adsorption of Isoniazid in alkaline solution, to prevent the occuring of the corrosion reaction of brass.

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