Adsorption Behavior of Organic Corrosion Inhibitors on Metal Surfaces—Some New Insights from Molecular Simulations

CORROSION ◽  
10.5006/2976 ◽  
2019 ◽  
Vol 75 (1) ◽  
pp. 90-105 ◽  
Author(s):  
Sumit Sharma ◽  
Xueying Ko ◽  
Yathish Kurapati ◽  
Himanshu Singh ◽  
Srdjan Nešić
Keyword(s):  
Metal Surfaces ◽  
Corrosion Inhibitors ◽  
Molecular Simulations ◽  
Adsorption Behavior ◽  
Organic Corrosion Inhibitors

scholarly journals A Review on Plants and Biomass Wastes as Organic Green Corrosion Inhibitors for Mild Steel in Acidic Environment

Metals ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 1062
Author(s):  
Norbaayah Ahmad Reza ◽  
Nor Hasrul Akhmal ◽  
Nor Akmal Fadil ◽  
Mohd Firdaus Mohd Taib
Keyword(s):  
Acid Solution ◽  
Natural Resources ◽  
Metal Surfaces ◽  
Corrosion Inhibitors ◽  
Acid Corrosion ◽  
Protective Layer ◽  
Acid Environment ◽  
Organic Inhibitors ◽  
Organic Corrosion Inhibitors ◽  
Green Corrosion Inhibitors

Acid corrosion is a problem pertaining to corrosion that involves an acid solution. It is important to treat metal to preserve its integrity. Thus, acids are utilized to clean and treat metal surfaces. In return, this may lead to over-etching and metal degradation. Corrosion inhibitors were introduced as a solution for the issue. However, there are some problems associated with the usage of conventional corrosion inhibitors. Traces of nitrites and chromates that are present in the inhibitors may lead to serious health and environmental issues. As a solution, organic green corrosion inhibitors have been studied to replace the conventional corrosion inhibitors. These inhibitor molecules form a protective layer on top of the metal surface to suppress metal dissolution when added to the acid solution. This process prevents direct contact between the metal surfaces and the acid environment. This study explores the usage of natural resources and biomass wastes as the basis for organic green corrosion inhibitors. This study also provides some suggestions for new biomass wastes that can be studied as new organic corrosion inhibitors, and it is aimed at opening the perspective of researchers on exploring new organic inhibitors by using natural resources and biomass wastes.

scholarly journals Toward understanding the adsorption mechanism of large size organic corrosion inhibitors on an Fe(110) surface using the DFTB method

RSC Advances ◽  
2017 ◽  
Vol 7 (46) ◽  
pp. 29042-29050 ◽  
Author(s):  
Lei Guo ◽  
Chengwei Qi ◽  
Xingwen Zheng ◽  
Renhui Zhang ◽  
Xun Shen ◽  
...  
Keyword(s):  
Metal Surface ◽  
Corrosion Inhibitors ◽  
Adsorption Mechanism ◽  
Large Size ◽  
Organic Corrosion Inhibitors

Compared with the conventional DFT approach, SCC-DFTB method is more effective to deal with the adsorption issues of large size organic corrosion inhibitors on metal surface.

Experimental and theoretical study of organic corrosion inhibitors on iron in acidic medium

1998 ◽  
Vol 41 (3) ◽  
pp. 501-517 ◽  
Author(s):  
M. Bouayed ◽  
H. Rabaa ◽  
A. Srhiri ◽  
J.-Y. Saillard ◽  
A.Ben Bachir ◽  
...  
Keyword(s):  
Acidic Medium ◽  
Corrosion Inhibitors ◽  
Theoretical Study ◽  
Organic Corrosion Inhibitors

scholarly journals Greener Approach towards Corrosion Inhibition

2013 ◽  
Vol 2013 ◽  
pp. 1-10 ◽  
Author(s):  
Neha Patni ◽  
Shruti Agarwal ◽  
Pallav Shah
Keyword(s):  
Heavy Metals ◽  
Amino Acids ◽  
Plant Extracts ◽  
Corrosion Inhibitors ◽  
Organic Dyes ◽  
Plant Origin ◽  
Toxic Compounds ◽  
Green Inhibitors ◽  
Protective Films ◽  
Organic Corrosion Inhibitors

Corrosion control of metals is technically, economically, environmentally, and aesthetically important. The best option is to use inhibitors for protecting metals and alloys against corrosion. As organic corrosion inhibitors are toxic in nature, so green inhibitors which are biodegradable, without any heavy metals and other toxic compounds, are promoted. Also plant products are inexpensive, renewable, and readily available. Tannins, organic amino acids, alkaloids, and organic dyes of plant origin have good corrosion-inhibiting abilities. Plant extracts contain many organic compounds, having polar atoms such as O, P, S, and N. These are adsorbed on the metal surface by these polar atoms, and protective films are formed, and various adsorption isotherms are obeyed. Various types of green inhibitors and their effect on different metals are mentioned in the paper.

Effect of Organic Corrosion Inhibitors on Corrosion Fatigue

CORROSION ◽  
1967 ◽  
Vol 23 (3) ◽  
pp. 65-71 ◽  
Author(s):  
PARVIZ MEHDIZADEH ◽  
R. L. McGLASSON ◽  
J. E. LANDERS
Keyword(s):  
Corrosion Fatigue ◽  
Diesel Fuel ◽  
Corrosion Inhibitors ◽  
Fatigue Cracks ◽  
Material Surface ◽  
Significant Protection ◽  
Inhibitor Concentration ◽  
Degree Of Protection ◽  
Organic Inhibitors ◽  
Organic Corrosion Inhibitors

Abstract The effect of organic inhibitors on corrosion fatigue performance of steel in a mixture of brine containing H2S-CO2 and diesel fuel is reported. The inhibitor concentration required to give significant protection to steel under corrosion fatigue conditions is much higher than that for corrosion control. This is due to the fact that corrosion fatigue cracks initiated at incompletely protected spots on the material surface influence fatigue failure regardless of the degree of protection achieved on neighboring areas. Effects of fatigue stress and concentration of corrosion inhibitors were investigated. Results were analyzed in terms of the proposed mechanism for corrosion inhibition in these environments.

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