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Electrochemical Impedance Spectroscopy (EIS) study of coconut water as natural inhibitor in Malay traditional preservation of iron artefact

Musa, Mukhtaruddin and Purwanto, Hadi and Razak, Rajabi and Othman, Raihan and Musa, Lukman and Ani, Mohd Hanafi (2020) Electrochemical Impedance Spectroscopy (EIS) study of coconut water as natural inhibitor in Malay traditional preservation of iron artefact. In: 2nd Joint Conference on Green Engineering Technology & Applied Computing 2020, 4th - 5th February 2020, Bangkok, Thailand..

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Abstract

Treating and cleaning corroded artefact has resulted in long-term loss of artefact integrity and intangible historical value in museum preservation method. Inhibitors and coatings are preferable methods applied in heritage conservation as it is the easiest way for corrosion protection. However, issue of health and environment has led conservators to find a better inhibitor, natural or green corrosion inhibitors. Surprisingly, Malay traditional practice has since long ago used Coconut water (CW) as corrosion inhibitor to preserve keris blades, showing that the knowledge in corrosion protection has been practiced in old Malay civilization for metal preservation. This paper intends to clarify the compositional effect of CW in the inhibition efficiency to iron-based keris blade. Through Tafel and Electrochemical Impedance Spectroscopy (EIS) and Energy dispersive analysis of X-rays (EDAX) analysis, the study showed that CW formed passivation with the highest IE of 92% as compared to other natural inhibitors existing and used in industries such as Ascorbic Acid (AA) and Tartaric acid (TA). EIS and Scanning Electron Microscope (SEM) study has shown and conclude that CW has displayed protective abilities that exceeds both AA and TA.

Item Type: Conference or Workshop Item (Plenary Papers)
Additional Information: 5804/81794
Uncontrolled Keywords: Coconut Water, Natural Inhibitor, Iron Artefact, Electrochemical Impedance Spectrometer
Subjects: T Technology > T Technology (General)
T Technology > TA Engineering (General). Civil engineering (General) > TA401 Materials of engineering and construction
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button): Kulliyyah of Engineering
Kulliyyah of Engineering > Department of Manufacturing and Materials Engineering
Depositing User: Dr Mohd Hanafi Ani
Date Deposited: 04 Aug 2020 12:02
Last Modified: 15 Oct 2020 15:35
URI: http://irep.iium.edu.my/id/eprint/81794

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