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<strong>Anti-corrosive properties of 2, 3-dihydroxyquinoxaline on mild steel corrosion in sulphuric acid</strong>

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Title Statement <strong>Anti-corrosive properties of 2, 3-dihydroxyquinoxaline on mild steel corrosion in sulphuric acid</strong>
 
Added Entry - Uncontrolled Name Kansal, Kirti ; Department of Chemistry, University of Delhi, Delhi-110007.
Chopra, Rashi ; Department of Chemistry, University of Delhi, Delhi-110007.
Kumar, Raman ; Department of Chemistry, University of Delhi, Delhi-110007.
Kumar, Akshay ; Department of Chemistry, University of Delhi, Delhi-110007.
Yadav, Bhaskaran ; Department of Chemistry, University of Delhi, Delhi-110007.
Sharma, Raj Kishore ; Department of Chemistry, University of Delhi, Delhi-110007.
Singh, Gurmeet ; Room No.007,Multistoried Building, Block-C,Department of Chemistry, University of Delhi, Delhi,110007
 
Uncontrolled Index Term AFM; DHQ; Electrochemical impedance spectroscopy; Mild steel; Polarization; Quantum; SEM; Weight loss
 
Summary, etc. 2, 3-Dihydroxyquinoxaline (DHQ) has been investigated as an inhibitor for mild steel corrosion in 0.5 MH<sub>2</sub>SO<sub>4 </sub> solution using electrochemical techniques [Galvanostatic polarization, Potentiostatic polarization and electrochemical impedance spectroscopy (EIS)] and non-electrochemical technique (weight loss). It has been found that the inhibition efficiency of the inhibitor increases with increase in concentration. The effect of temperature ranging from 298 K to 328 K on the corrosion rate have been studied and various thermodynamic parameters are calculated. Polarization studies show that investigated inhibitor is of mixed type in nature and shows a passive range at 298 K. The adsorption of the inhibitor on the mild steel surface in acid solution is found to obey the Langmuir adsorption isotherm. Scanning electron microscopy (SEM) and Atomic Force microscopy (AFM) are performed on inhibited and uninhibited mild steel samples to analyze the surface morphology and topography. Quantum chemical calculations have also employed using the semi empirical AM1 method for theoretical calculations and obtained results are found to be in good agreement with the experimental findings.
 
Publication, Distribution, Etc. Indian Journal of Chemical Technology (IJCT)
2017-08-31 10:09:17
 
Electronic Location and Access application/pdf
http://op.niscair.res.in/index.php/IJCT/article/view/13124
 
Data Source Entry Indian Journal of Chemical Technology (IJCT); ##issue.vol## 24, ##issue.no## 2 (2017): Indian Journal of Chemical Technology
 
Language Note en
 
Nonspecific Relationship Entry http://op.niscair.res.in/index.php/IJCT/article/download/13124/38021