Malaysian Journal of Analytical Sciences Vol 26 No 4 (2022): 867 - 883

 

 

 

 

A BRIEF REVIEW ON CORROSION INHIBITION STUDY OF ORGANIC LIGAND: ELECTROCHEMICAL, MORPHOLOGY, AND ISOTHERM STUDIES

 

(Ulasan Ringkas Terhadap Kajian Perencatan Kakisan Ligan oleh Ligan Organik: Kajian Elektrokimia, Morfologi dan Isoterma)

 

Nur Nadia Dzulkifli^1,3*, Nur Zalin Khaleda Razali³, Norsanida Iswa Sahani³, Sheikh Ahmad Izaddin Sheikh Mohd Ghazali^1,3, Dzeelfa Zainal Abidin², Asiah Abdullah^1,3, Nurazira Mohd Nor^1,3

 

¹Material, Inorganic, and Oleochemistry (MaterInOleo) Research Group, Faculty of Applied Sciences

²Academy of Language Studies

³School of Chemistry and Environment, Faculty of Applied Sciences

Universiti Teknologi MARA Cawangan Negeri Sembilan, Kampus Kuala Pilah, Pekan Parit Tinggi,

72000 Kuala Pilah, Negeri Sembilan, Malaysia

 

*Corresponding author: nurnadia@uitm.edu.my

 

 

Received: 10 February 2022; Accepted: 2 April 2022; Published:  25 August 2022

 

 

Abstract

Over the past decade, the corrosion inhibition of organic ligands has been extensively studied in numerous experiments in acid media. The number of published papers related to corrosion inhibition studies of organic ligands has been rising exponentially. The organic ligands have high inhibitive properties due to their capability to adsorb on the surface of metal by forming a protective layer. Having lone pair electrons (S, N, O) and multiple bonds (π bonds) allow them to adsorb on the surface of metals efficiently. However, there is very limited and less comprehensive information on the characterization of corrosion inhibition performance of organic ligands on the surface of metals. Therefore, this review paper provides a comprehensive review on the corrosion inhibition performance through various characterization methods, which are the electrochemical method [Electrochemical Impedance Spectroscopy (EIS), Polarization], Scanning Electron Microscope (SEM) with Energy Dispersive X-ray (EDX), and Langmuir Isotherm, which are thoroughly discussed herein.

 

Keywords: electrochemical impedance spectroscopy, polarization, scanning electron microscope with energy dispersive     X-ray; Langmuir isotherm

 

Abstrak

Sepanjang dekad yang lalu, perencatan kakisan ligan organik di dalam media berasid telah diuji di dalam eksperimen secara meluas dalam banyak eksperimen dalam media asid. Bilangan makalah yang diterbitkan berkaitan dengan kajian perencatan kakisan ligan organik telah meningkat secara eksponen. Ligan organik mempunyai sifat perencat yang tinggi kerana keupayaannya untuk menjerap pada permukaan logam dengan membentuk lapisan pelindung. Mempunyai pasangan elektron tunggal (S, N, O) dan ikatan berganda (ikatan π) membolehkan ligan organik menjerap pada permukaan logam dengan berkesan. Walau bagaimanapun, terdapat maklumat yang sangat terhad dan kurang komprehensif mengenai pencirian prestasi perencatan kakisan ligan organik pada permukaan logam. Oleh itu, kertas kajian ini menyediakan ulasan kajian secara menyeluruh tentang pencirian prestasi perencatan kakisan melalui pelbagai kaedah pencirian seperti kaedah elektrokimia [Spectroskopi Impedan Elektrokimia (EIS), Polarisasi], Mikroskop Elektron Pengimbas (SEM) dengan Sinar-X Serakan Tenaga (EDX), dan Isoterma Langmuir dan telah dibincangkan dengan teliti di sini.

 

Kata kunci: spektroskopi impedan elektrokimia, polarisasi, mikroskop elektron pengimbas dengan sinar-X serakan tenaga, isoterma Langmuir

 

Graphical Abstract

 

 

 

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