Polyaniline/chitosan as a corrosion inhibitor for mild steel in acidic medium

The inhibition performance of polyaniline (PANI)/chitosan (CTS) on metal corrosion in 0.5 M HCl was studied using electrochemical measurements, quantum chemical calculations and morphological observations. Potentiodynamic polarization measurements show that PANI/CTS acts essentially as a mixed-type...

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Bibliographic Details
Published in:RSC advances 2019-03, Vol.9 (16), p.9211-9217
Main Authors: Kong, Peipei, Feng, Huixia, Chen, Nali, Lu, Yong, Li, Shiyou, Wang, Peng
Format: Article
Language:English
Subjects:
Chemistry
Chitosan
Computing time
Corrosion
Corrosion inhibitors
Corrosion rate
Low carbon steels
Mathematical analysis
Organic chemistry
Polyanilines
Quantum chemistry
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Summary:The inhibition performance of polyaniline (PANI)/chitosan (CTS) on metal corrosion in 0.5 M HCl was studied using electrochemical measurements, quantum chemical calculations and morphological observations. Potentiodynamic polarization measurements show that PANI/CTS acts essentially as a mixed-type inhibitor. The inhibition efficiency increases and corrosion rates decrease with increasing concentrations of PANI/CTS. The relationship between experimental inhibition efficiency and quantum chemical calculations that were developed to describe the corrosion inhibition process are discussed. One-pot synthesis route for PANI/CTS preparation. The inhibition performance of PANI/CTS on metal corrosion in 0.5 M HCl was studied using electrochemical measurements and quantum chemical calculations.
ISSN:2046-2069
2046-2069
DOI:10.1039/c9ra00029a