|
|
|
|
Inhibitive effect of thiosemicarbazone derivative on corrosion of mild steel in hydrochloric acid solution
|
|
|
|
|
|
|
|
نویسنده
|
Khaled K. F. ,Elhabib O.A. ,El-mghraby A. ,Ibrahim O. B. ,Ibrahim Magdy A. M.
|
|
منبع
|
journal of materials and environmental science - 2010 - دوره : 1 - شماره : 3 - صفحه:139 -150
|
|
چکیده
|
Inhibition effect of 3-pyridinecarboxaldehyde thiosemicarbazone (meta) on the mild steel corrosion in one molar hydrochloric acid was investigated using weight loss, potentiodynamic polarization and electrochemical impedance spectroscopy (eis). results showed that (meta) is an effective inhibitor for mild steel corrosion in 1.0 m hcl solutions and inhibition efficiency is >94% at inhibitor concentration of 0.01 m. adsorption of the inhibitor on the mild steel surface followed langmuir adsorption isotherm. the thermodynamic values indicated that adsorption of 3- pyridinecarboxaldehyde molecule is a spontaneous process and it adsorbs chemically as well as physically. polarization studies showed that 3-pyridinecarboxaldehyde is a mixed-type inhibitor. scanning electron microscope (sem) micrographs revealed that inhibition occurs due to adsorption of 3-pyridinecarboxaldehyde molecules at metal/solution interface.
|
|
کلیدواژه
|
Acid corrosion inhibition; EIS; SEM; Adsorption
|
|
آدرس
|
Taif University, Materials and corrosion laboratory (MCL), Chemistry Department, Saudi Arabia. Ain Shams University, Faculty of Education, Electrochemistry Research Laboratory, Chemistry Department, Egypt, Taif University, Faculty of Engineering, Saudi Arabia, Taif University, Materials and corrosion laboratory (MCL), Chemistry Department, Saudi Arabia, Taif University, Materials and corrosion laboratory (MCL), Chemistry Department, Saudi Arabia, Ain Shams University, Faculty of Science, Chemistry Department, Egypt
|
|
پست الکترونیکی
|
khaledrice2003@yahoo.com
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Authors
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|