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Chauhan, D. S., Srivastava, V., Joshi, P. G., Quraishi, M. A.. (1397). PEG cross-linked Chitosan: a biomacromolecule as corrosion inhibitor for sugar industry. نشریه علمی پژوهشی دانشگاه آزاد اسلامی, 9(4), 363-377. doi: https://doi.org/10.1007/s40090-018-0165-0
D. S. Chauhan; V. Srivastava; P. G. Joshi; M. A. Quraishi. "PEG cross-linked Chitosan: a biomacromolecule as corrosion inhibitor for sugar industry". نشریه علمی پژوهشی دانشگاه آزاد اسلامی, 9, 4, 1397, 363-377. doi: https://doi.org/10.1007/s40090-018-0165-0
Chauhan, D. S., Srivastava, V., Joshi, P. G., Quraishi, M. A.. (1397). 'PEG cross-linked Chitosan: a biomacromolecule as corrosion inhibitor for sugar industry', نشریه علمی پژوهشی دانشگاه آزاد اسلامی, 9(4), pp. 363-377. doi: https://doi.org/10.1007/s40090-018-0165-0
Chauhan, D. S., Srivastava, V., Joshi, P. G., Quraishi, M. A.. PEG cross-linked Chitosan: a biomacromolecule as corrosion inhibitor for sugar industry. نشریه علمی پژوهشی دانشگاه آزاد اسلامی, 1397; 9(4): 363-377. doi: https://doi.org/10.1007/s40090-018-0165-0

PEG cross-linked Chitosan: a biomacromolecule as corrosion inhibitor for sugar industry

International Journal of Industrial Chemistry
دوره 9، شماره 4، اسفند 2018، صفحه 363-377
نوع مقاله: research article
شناسه دیجیتال (DOI): https://doi.org/10.1007/s40090-018-0165-0
نویسندگان
D. S. Chauhan* 1؛ V. Srivastava2؛ P. G. Joshi2؛ M. A. Quraishi* 1
1Center of Research Excellence in Corrosion, Research Institute, King Fahd University of Petroleum and Minerals, Dhahran, 31261, Saudi Arabia
2Department of Chemistry, Indian Institute of Technology (Banaras Hindu University), Varanasi, 221005, India
چکیده
The present work reports the application of polyethylene glycol (PEG) cross-linked chitosan (Cht-PEG) as a green corrosion inhibitor. This is the first study reporting the application of Cht-PEG as corrosion inhibitor for mild steel in 1 M sulphamic acid solution. The results of gravimetric measurements, electrochemical study and surface analysis (SEM) are presented in this work. The adsorption of the inhibitor over the mild steel surface obeyed the Langmuir isotherm. At an optimum concentration of 200 ppm, the maximum corrosion inhibition efficiency obtained was 93.9%. The electrochemical impedance spectroscopy (EIS) study showed an increase in polarization resistance with increase in the concentration of inhibitor justifying the adsorption and inhibition behaviour. Potentiodynamic polarization indicated that the Cht-PEG behaved as a mixed type inhibitor with cathodic predominance. The density functional theory (DFT) based calculations supported the experimental observations.
کلیدواژه‌ها
Chitosan · Biomacromolecule · Corrosion inhibition · Potentiodynamic polarization · Electrochemical impedance spectroscopy · Density functional theory
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تعداد مشاهده مقاله: 18


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