Corrosion inhibition ability of electropolymerised composite film of 2-amino-5-mercapto-1,3,4-thiadiazole/TiO2 deposited over the copper electrode in neutral medium

2018 ◽  
Vol 14 ◽  
pp. 27-39 ◽  
Author(s):  
Kodimani Vinothkumar ◽  
Mathur Gopalakrishnan Sethuraman
Keyword(s):  
Composite Film ◽  
Corrosion Inhibition ◽  
Copper Electrode ◽  
Neutral Medium ◽  
Inhibition Ability

Parametric study and optimization of a low-cost paper-based Al-air battery with corrosion inhibition ability

2019 ◽  
Vol 251 ◽  
pp. 113342 ◽  
Author(s):  
Yifei Wang ◽  
Holly Y.H. Kwok ◽  
Wending Pan ◽  
Huimin Zhang ◽  
Xu Lu ◽  
...  
Keyword(s):  
Corrosion Inhibition ◽  
Parametric Study ◽  
Low Cost ◽  
Air Battery ◽  
Inhibition Ability

Electropolymerization of poly(aniline-co-p-toluidine) on copper and its application as a corrosion inhibitor

2014 ◽  
Vol 61 (5) ◽  
pp. 334-342 ◽  
Author(s):  
Mohd Rashid ◽  
Suhail Sabir ◽  
Umesh Waware ◽  
Afidah A. Rahim
Keyword(s):  
Corrosion Inhibition ◽  
Inhibition Efficiency ◽  
Electrochemical Impedance ◽  
Pure Copper ◽  
Open Circuit ◽  
Copper Electrode ◽  
Content Type ◽  
Corrosion Inhibition Efficiency ◽  
Hcl Solution ◽  
Poly Aniline

Purpose – This paper aims to compare the inhibitive effects of polyaniline (PAni), poly(p-toluidine) and poly(aniline-co-p-toluidine) in hydrochloric acid (HCl) solution. Design/methodology/approach – The electrochemical deposition of PAni, poly(p-toluidine) and poly(aniline-co-p-toluidine) on pure copper metal was studied potentiodynamically. The copolymer deposited was characterized by Fourier transform infrared (FTIR) spectroscopy, ultraviolet (UV)-visible spectroscopy and scanning electron microscopy (SEM). The corrosion inhibition studies on copper electrode were performed using electrochemical methods, viz, open circuit potential (OCP) measurements, potentiodynamic polarization scans and electrochemical impedance spectroscopy (EIS) tests, conducted in 0.1 M HCl solution. Finding – The results of the study reveal that the copolymer of poly(aniline-co-p-toluidine) at the optimum concentration of 1 × 10−3 M has better corrosion inhibition efficiency as compared to PAni and poly(p-toluidine). Research limitations/implications – The conducting polymers are difficult to deposit on the metal surface because of their high dissolution tendency before the electropolymerization potential of the monomer is achieved. Practical implications – From an environmental viewpoint, poly(aniline-co-p-toluidine) is a toxic and hazardous conducting polymer. Originality/value – The paper demonstrates that poly(aniline-co-p-toluidine) showed better dispersion in different organic solvents and had higher corrosion inhibition efficiency than PAni.

scholarly journals CORROSION INHIBITION PROPERTY OF EXPIRED FLUOXYMESTERONE DRUG ON THE ALUMINUM (AL) SURFACE IN 3 % NaCl SOLUTION

2019 ◽  
pp. 48-50 ◽  
Author(s):  
NARASIMHA RAGHAVENDRA ◽  
LEENA V. HUBLIKAR ◽  
ANJALI S. BHINGE ◽  
POOJA J. GANIGER
Keyword(s):  
Corrosion Inhibition ◽  
Adsorption Mechanism ◽  
Adsorption Property ◽  
Neutral Medium ◽  
Nacl Solution ◽  
Corrosive Solution ◽  
Drug Molecules ◽  
Aluminum Metal ◽  
Inhibition Property ◽  
Corrosion Research

Objective: Aluminum (Al) corrosion in the NaCl solution is an example of dissolution in the neutral medium. The ongoing corrosion research efforts to produce the eco-friendly corrosion inhibitors to protect the aluminum metal from the corrosive solution. Methods: Herein, mass loss and atomic absorption spectroscopy (AAS) techniques were conducted to explain the adsorption property of expired Fluoxymesterone drug on the Al surface in the 3 % NaCl solution. Results: All results show that the expired Fluoxymesterone drug molecules generate a stable invisible layer through adsorption mechanism on the electrode surface. The corrosion inhibition behavior mainly depends on the concentration of the expired Fluoxymesterone drug and contact time at 313 K. Conclusion: The corrosion inhibition property is due to adsorption of electron-rich molecules on the Al surface in 3 % NaCl solution.

Synthesis of polyaspartic acid–aminobenzenesulfonic acid grafted copolymer and its scale inhibition performance and dispersion capacity

2011 ◽  
Vol 64 (2) ◽  
pp. 423-430 ◽  
Author(s):  
Ying Xu ◽  
Lina Wang ◽  
Linlin Zhao ◽  
Yuanchen Cui
Keyword(s):  
Corrosion Inhibition ◽  
Graft Copolymer ◽  
Polyaspartic Acid ◽  
Copolymer Solution ◽  
Sulfonic Group ◽  
Grafted Copolymer ◽  
Scale Inhibition ◽  
Dispersion Capacity ◽  
Inhibition Performance ◽  
Inhibition Ability

Polysuccinimide (abridged as PSI) was synthesized by urea and maleic anhydride. Aminobenzenesulfonic acid (ABSA) was introduced at different mole ratio to PSI to generate polyaspartic acid (abridged as PASP)/ABSA graft copolymer. The scale inhibition behavior of resultant PASP/ABSA copolymer was evaluated by using static scale inhibition method. The transmittance of the supernatant of the copolymer solution was measured to evaluate its dispersion ability for ferric oxide. The corrosion inhibition performance of the copolymer for iron plates immersed in the refined testing water (including 0.555 g of CaCl2·2H2O, 0.493 g of MgSO4·7H2O, 50 mg PASP/ABSA graft copolymer and 0.168 g of NaCl) was tested. It was found that PASP/ABSA copolymer was able to efficiently inhibit CaCO3 and Ca3(PO4)2 scales and had good corrosion inhibition ability as well, and it also had good dispersion ability for Fe2O3. Besides, the inhibition efficiency of PASP/ABSA against CaCO3 and Ca3(PO4)2 scales and its dispersion capacity for Fe2O3 was highly dependent on dosage. The reason may lie in that PASP/ABSA copolymer simultaneously possesses carboxylic ion and sulfonic group which can chelate Ca2+ to form stabilized and dissoluble chelates, resulting in increase of solubility of calcium salts in water. Also it may lie in that the introduction of acidic hydrophilic sulfonic group with a strong electrolytic capacity into PASP molecule simultaneously enhances the dispersion of the inhibitor molecules and hinders the formation of Ca3(PO4)2 scale.

Electrochemical study of the corrosion inhibition ability of “smart” coatings applied on AA2024

2013 ◽  
Vol 17 (8) ◽  
pp. 2183-2192 ◽  
Author(s):  
Darya Snihirova ◽  
Leonard Liphardt ◽  
Guido Grundmeier ◽  
Fatima Montemor
Keyword(s):  
Corrosion Inhibition ◽  
Electrochemical Study ◽  
Smart Coatings ◽  
Inhibition Ability

scholarly journals Performance of waterborne polyurethane based on N-tert-butyldiethanolamine in corrosion inhibition

2021 ◽  
Vol 1201 (1) ◽  
pp. 012074
Author(s):  
Y Zaripova ◽  
M Varfolomeev ◽  
R Pavelyev ◽  
A Farhadian ◽  
V Yarkovoi ◽  
...  
Keyword(s):  
Corrosion Inhibition ◽  
Room Temperature ◽  
Oil And Gas ◽  
Reference Sample ◽  
Hydrate Formation ◽  
Oil And Gas Industry ◽  
Waterborne Polyurethane ◽  
Gas Industry ◽  
Waterborne Polyurethanes ◽  
Inhibition Ability

Abstract The design of bifunctional inhibitors effectively preventing hydrate formation and corrosion is a relevant issue for the oil and gas industry. In this work, we expanded the study of the corrosion inhibition effectiveness for waterborne polyurethanes (WPUs) obtained earlier and shown to be promising inhibitors. The corrosion inhibition ability of WPUs was assessed using weight-loss and electrochemical methods. Commercial corrosion inhibitor Armohib CI-28 was taken as a reference sample. The data obtained showed that the tert-Bu-WPU sample is able to effectively inhibit acid and carbon dioxide corrosion at room temperature; however, with an increase in temperature, its efficiency decreases more intensively than for a commercial inhibitor. In general, waterborne polyurethanes are promising alternatives to commercial reagents due to their multifunctionality.

Assessment of bio-corrosion inhibition ability of Hafnium based cationic metallosurfactant on iron surface

2021 ◽  
Vol 179 ◽  
pp. 109101
Author(s):  
Harshal Mehta ◽  
Gurpreet Kaur ◽  
Ganga Ram Chaudhary ◽  
Nirmal Prabhakar
Keyword(s):  
Corrosion Inhibition ◽  
Iron Surface ◽  
Inhibition Ability
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