Open AccessElectrochemical Impedance Spectroscopy Evaluation of Organic Coating on Mild Steel
Author(s) -
Zailelah Zainoldin,
Hadariah Bahron,
Mohamad Kamal Harun,
Syaidah Athirah Dzolin
Publication year - 2018
Publication title -
international journal of engineering and technology
Language(s) - English
Resource type - Journals
ISSN - 2227-524X
DOI - 10.14419/ijet.v7i3.11.15924
Subject(s) - dielectric spectroscopy , nyquist plot , materials science , coating , polarization (electrochemistry) , cyclic voltammetry , electrical impedance , electrochemistry , equivalent circuit , analytical chemistry (journal) , metallurgy , composite material , electrode , chemistry , voltage , chromatography , electrical engineering , engineering
Electro-oxidation of 4-hydroxybenzalaniline in alkaline solution on mild steel surface was successfully carried out using cyclic voltammetric technique. Results demonstrated that brownish colour appeared on the mild steel surface after the cycle of voltammetric study. The presence of film was confirmed by the EIS measurement whereas the Nyquist plots obtained from EIS measurements were fitted with suitable electrical equivalent circuit. The coated mild steel exhibit better polarization resistance than uncoated mild steel.