scholarly journals Evaluation of Corrosion Inhibition of Two Schiff Bases Self- Assembled Films on Carbon Steel in 0.5 M HCl

2017 ◽  
pp. 103-115 ◽  
Author(s):  
Le Ruan ◽  
Keyword(s):  
Carbon Steel ◽  
Corrosion Inhibition ◽  
Schiff Bases ◽  
Self Assembled

The effect of type of self-assembled system and pH on the efficiency of corrosion inhibition of carbon-steel surfaces

2013 ◽  
Vol 76 (10) ◽  
pp. 1308-1315 ◽  
Author(s):  
Erileide Cavalcanti Roberto ◽  
Alcides de Oliveira Wanderley Neto ◽  
Carlos Alberto Martínez-Huitle ◽  
José Luís Cardozo Fonseca ◽  
Tereza Neuma de Castro Dantas ◽  
...  
Keyword(s):  
Carbon Steel ◽  
Corrosion Inhibition ◽  
Steel Surfaces ◽  
Self Assembled

Corrosion Inhibition by Self Assembling Monolayers on Carbon Steel

2015 ◽  
Vol 5 (2) ◽  
pp. 113-117
Author(s):  
Somasundaram Gowri ◽  
Jeganathan Sathiyabama ◽  
Susai Rajendran ◽  
Rajendran M. Joany ◽  
Jeyaparkash Jeyasundari ◽  
...  
Keyword(s):  
Carbon Steel ◽  
Corrosion Inhibition ◽  
Self Assembling

scholarly journals Combined Experimental and Theoretical Insights into the Corrosion Inhibition Activity on Carbon Steel Iron of Phosphonic Acids

Molecules ◽  
2020 ◽  
Vol 26 (1) ◽  
pp. 135
Author(s):  
Aurelia Visa ◽  
Nicoleta Plesu ◽  
Bianca Maranescu ◽  
Gheorghe Ilia ◽  
Ana Borota ◽  
...  
Keyword(s):  
Carbon Steel ◽  
Corrosion Inhibition ◽  
Density Functional ◽  
Energy Gap ◽  
Electrochemical Impedance ◽  
Charge Transfer Resistance ◽  
Phosphonic Acids ◽  
Transfer Resistance ◽  
Potential Map ◽  
Chlorine Ions

The inhibition effect of N,N′-phosphonomethylglycine (PMG) and vinyl phosphonic acid (VPA) on the 3% NaCl acidic solution corrosion of carbon steel iron was studied at different immersion times by potentiodynamic polarization, electrochemical impedance spectroscopy, attenuated total reflectance Fourier transform infrared (ATR-FTIR) spectroscopy, and computational methods. It is found from the polarization studies that PMG and VPA behave as mixed-type inhibitors in NaCl. Values of charge transfer resistance (Rct) and double layer capacitance (Cdl) in the absence and presence of inhibitors are determined. The PMG and VPA inhibitors were capable of inhibiting the corrosion process up to ≈91% and ≈85%, respectively. In the presence of PMG, the synergic effect of chlorine ions was observed. Density functional theory (DFT) was engaged to establish the adsorption site of PMG, VPA, and their deprotonated states. For studied compounds, the resulted values of ELUMO, EHOMO, energy gap (∆E), dipole moment (μ), electronic hardness (η), global softness (σ), electrophilic index (ω), and the electronic potential map are in concordance with the experimental data results regarding their corrosion inhibition behavior and adsorption on the metal surface.

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