Electrochemical study of commercial and synthesized green corrosion inhibitors for N80 steel in acidic liquid

2019 ◽  
Vol 43 (40) ◽  
pp. 16058-16070 ◽  
Author(s):  
Yang Yaocheng ◽  
Yin Caihong ◽  
Ambrish Singh ◽  
Yuanhua Lin
Keyword(s):  
Corrosion Inhibitors ◽  
Electrochemical Study ◽  
Benzimidazole Derivatives ◽  
Corrosive Environment ◽  
Temperature Range ◽  
N80 Steel ◽  
Static Conditions ◽  
Green Corrosion Inhibitors

The present paper deals with the investigation of two synthesized benzimidazole derivatives (BZs) as corrosion inhibitors for N80 steel under static conditions in a 15% HCl corrosive environment and in the temperature range of 30 to 90 °C.

Experience Using Electrochemical Noise for Testing Green Corrosion Inhibitors

2021 ◽  
Author(s):  
Douglas J Mills ◽  
Joshua Zatland ◽  
Nicola M Everitt
Keyword(s):  
Weight Loss ◽  
Crevice Corrosion ◽  
Corrosion Inhibitors ◽  
Electrochemical Noise ◽  
Banana Peel ◽  
Biomass Waste ◽  
Plant Materials ◽  
Complementary Interactions ◽  
Static Conditions ◽  
Green Corrosion Inhibitors

Abstract ‘Green’ corrosion inhibitors derived from plant materials provide environmentally friendly alternatives to conventional corrosion inhibitors. They are also much cheaper if using a biomass waste stream or abundant plant material as the source material. There are many examples in literature of different trials, from henna leaves to celery seeds to banana peel. Although it is known that extracts contain electron-rich polar atoms such as N, O, S and P which make them potentially effective inhibitors, it is difficult to predict on a molecular basis what will work well and what will not, since many interacting factors may be at play in complementary interactions. To assist in predicting the inhibition efficiency of inhibitors under varying conditions and choosing the most effective, what is needed is a short-term test which will obviate the need for tedious weight loss experiments. The Electrochemical Noise Method (ENM) uses the natural fluctuations which arise during electrochemical activity to gain information about the corrosion process. Using ENM is quick and non-intrusive method which makes it ideal for screening. Hence a rig has been designed and manufactured which allows for measurement to be made in stirred as well as static conditions and minimises the occurrence of crevice corrosion at the electrodes. Crevice corrosion is a hazard for ENM electrodes when trying to make a comparison with corrosion inhibition calculated using the standard weight loss measurement after immersion (WLM) method. For these preliminary trials we are exploring corrosion of mild steel in HCl in both stirred and unstirred conditions at room temperature. Results are presented comparing ENM measurements with conventional WLM for both Propargyl Alcohol (a conventional industrial corrosion inhibitor) and broccoli extract. Our results suggest that stirring does not make any difference to the noise measured in ENM. The amount of material lost calculated by ENM and WLM (Rn and weight loss values) can be directly compared and show close comparison. It seems likely that as a way of assessing inhibitors quickly (which is particularly important in the testing of "green" inhibitors) that this ENM approach has a lot to offer.

Carbohydrate compounds as green corrosion inhibitors: electrochemical, XPS, DFT and molecular dynamics simulation studies

RSC Advances ◽  
2016 ◽  
Vol 6 (111) ◽  
pp. 110053-110069 ◽  
Author(s):  
M. Yadav ◽  
T. K. Sarkar ◽  
I. B. Obot
Keyword(s):  
Molecular Dynamics ◽  
Molecular Dynamics Simulation ◽  
Corrosion Inhibition ◽  
Electrochemical Method ◽  
Corrosion Inhibitors ◽  
Dynamics Simulation ◽  
Simulation Studies ◽  
Inhibition Effect ◽  
N80 Steel ◽  
Green Corrosion Inhibitors

Corrosion inhibition effect of 5,6-bis(2-(1H-benzo[d]imidazol-2-yl)hydrazono)hexane-1,2,3,4-tetraol (BIHT) and 5,6-bis(2-(1-methyl-1H-imidazol-2-yl)hydrazono)hexane-1,2,3,4-tetraol (MIHT) on N80 steel in 15% HCl was measured by electrochemical method.

The recent development of carbon dots as powerful green corrosion inhibitors: A prospective review

2021 ◽  
pp. 118124
Author(s):  
Elyor Berdimurodov ◽  
Dakeshwar Kumar Verma ◽  
Abduvali Kholikov ◽  
Khamdam Akbarov ◽  
Lei Guo
Keyword(s):  
Carbon Dots ◽  
Corrosion Inhibitors ◽  
Green Corrosion Inhibitors
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