Volatile corrosion inhibitor film formation on carbon steel surface and its inhibition effect on the atmospheric corrosion of carbon steel

2006 ◽  
Vol 253 (3) ◽  
pp. 1343-1348 ◽  
Author(s):  
Da-quan Zhang ◽  
Zhong-xun An ◽  
Qing-yi Pan ◽  
Li-xin Gao ◽  
Guo-ding Zhou
Keyword(s):  
Carbon Steel ◽  
Corrosion Inhibitor ◽  
Atmospheric Corrosion ◽  
Steel Surface ◽  
Film Formation ◽  
Inhibition Effect ◽  
Volatile Corrosion Inhibitor ◽  
Carbon Steel Surface

scholarly journals Theoretical study of a new oxazolidine -5- one derivative as a corrosion inhibitor for carbon steel surface

2021 ◽  
pp. 1396-1403
Author(s):  
Rehab Majed Kubba ◽  
Nada Mohammed Al-Joborry
Keyword(s):  
Carbon Steel ◽  
Corrosion Inhibitor ◽  
Density Functional ◽  
Steel Surface ◽  
Equilibrium Geometry ◽  
Chemical Parameters ◽  
Functional Theory ◽  
Carbon Steel Surface ◽  
Quantum Mechanical Method ◽  
Inhibition Performance

A newly derivative of oxazolidin-5- one namely [2-(2-biphenyl-4-yl-imidazo [1,2-a] pyridine-3-yl)-3-(4-nitro-phenyl)-oxazolidin-5-one (BIPNO5)] was examined as an corrosion inhibitor for carbon steel surface. Quantum mechanical method of Density Functional Theory (DFT) with (B3LYP (6-311++G (2d, 2p)) level of theory was used to calculate the minimize structure, physical properties and inhibition chemical parameters, in vacuum and two solvents (DMSO and H2O), all at equilibrium geometry. The results indicated that the new derivative could adsorb on the surface of carbon steel through the heteroatom, showing that the new inhibitor has good corrosion inhibition performance.

Inhibition of [NH2Et2][(4-MeC6H4O)2PS2] for Carbon Steel in Hydrochloric Acid Solution

2011 ◽  
Vol 239-242 ◽  
pp. 716-719
Author(s):  
Zhen Xiang ◽  
Xue Yang ◽  
Bin Xie ◽  
Li Ke Zou ◽  
Yang Guang Xiang ◽  
...  
Keyword(s):  
Weight Loss ◽  
Carbon Steel ◽  
Mixed Type ◽  
Steel Surface ◽  
Standard Free Energy ◽  
Free Energy Of Adsorption ◽  
Inhibition Effect ◽  
Carbon Steel Surface ◽  
Hcl Solution ◽  
Mixed Type Inhibitor

The inhibition effect of N,N-diethylammonium O,O'-di(4-Methylpheny)dithiophosphate (NOPP, [NH2Et2][(4-MeC6H4O)2PS2])against the corrosion of carbon steel in HCl solution was studied by weight loss measurements, electrochemical measurements, AFM and SEM techniques. The studies of weight loss measurements indicate that the NOPP acts as a good inhibitor for the corrosion of carbon steel in HCl solution. Polarization curves indicate NOPP is a mixed-type inhibitor. The adsorption of NOPP on carbon steel surface obeys the Langmuir isotherm, and the obtained standard free energy of adsorption suggests that the chemisorption takes place spontaneously.

Investigation of 4-Methoxysalicylaldehyde Thiosemicarbazone as Inhibitor for Carbon Steel in Sulfuric Acid Solution

2014 ◽  
Vol 633-634 ◽  
pp. 513-516
Author(s):  
Hong Hong Zhang ◽  
Yan Zhang ◽  
Zhong Nian Yang
Keyword(s):  
Weight Loss ◽  
Schiff Base ◽  
Carbon Steel ◽  
Steel Surface ◽  
Electrochemical Impedance ◽  
Langmuir Adsorption Isotherm ◽  
Inhibition Effect ◽  
Langmuir Adsorption ◽  
Carbon Steel Surface ◽  
Eis Measurements

The Schiff base 4-methoxysalicylaldehyde thiosemicarbazone (MST) was synthesized and its corrosion inhibition effect on carbon steel in 0.5 M H2SO4 solution was tested via weight loss and electrochemical impedance spectroscopy (EIS) measurements. The results show that MST serves as an effective corrosion inhibitor for carbon steel. The corrosion rate of carbon steel decreases with the increase in concentration of MST. The adsorption of MST on the carbon steel surface conforms to the Langmuir adsorption isotherm.

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