Evaluation of Efficiency of Avocado Seed Powder (Persea Americana) as a Corrosion Inhibitor in Sae 1008 Carbon Steel in Acidic Medium / Avaliação Da Eficiência Da Semente De Abacate Em Pó (Persea Americana) Como Inibidor De Corrosão Em Aço Carbono Sae 1008 Em Meio Ácido

The hexane extract of Persea schiedeana Ness (PSN) was analyzed as corrosion inhibitor for the brass surface immersed in 0.5 M HCl. Fourier-transform infrared spectroscopy and a gas chromatographic (GC) and mass spectrometric (MS) were used to identify the PSN extract’s functional groups and compound constituents. The functional groups identified were $${\text{C}}{\text{H}}_{3}$$ CH 3 and $${\text{C}}{\text{H}}_{2}$$ CH 2 functional alkyl groups, $$\text{C=O}$$ C=O stretching vibration of aldehydes, ketones, and carbonyl groups. The GC/MS determined the presence of fatty acids in the PSN extract, where palmitic acid, oleic acid, and ethyl oleate were the major constituents. Electrochemical characterizations were conducted to observe the effect of PSN as corrosion inhibitor on the brass surface. The Rp and Rn calculated from EIS and ENA give the same behavior. Based on the OCP behavior, it was determined that the PSN works as a mix inhibitor, affecting both anodic and cathodic reactions. The corrosion current density (Icorr) suggests that the extract of PSN reduces the corrosion rate of the brass with efficiencies above 90% for all concentrations. The efficiency obtained for each PSN concentration was attributed to forming a corrosion scale of $${\text{CuO}}$$ CuO and $${\text{C}}{\text{u}}_{2}{\text{O}}$$ Cu 2 O , which reacted with the carboxyl group to form copper carboxylates on the metal surface.

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Understanding the inhibitory mechanism and protection performance of avocado seed nanoparticle extract in API X65 steel corrosion in a 1M HCl acid environment

Alao,

Popoola,

Dada

2023

MATEC Web Conf.

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There is currently a high need for effective and nontoxic corrosion inhibitors in the acidising industrial process due to rising concern for human life and environmental sustainability. As a result, in this work the anticorrosive efficiency of avocado seed nanoparticle extract (ASN) in APIX65 pipeline steel corrosion was examined in 1M HCl medium through weight loss and the potentiodynamic polarisation approach. The inhibitor morphology, particle size, and elemental composition were investigated using scanning electron microscopy (SEM), transmission electron microscopy (TEM), and energy-dispersive X-ray spectroscopy (EDX). The SEM examination of the steel surface indicates a considerable difference, demonstrating that the inhibitor formed a protective barrier on the metal surface with heteroatom constituents from the inhibitor. The findings show a corresponding increase in inhibition efficiency as the inhibitor concentration increases, with the highest inhibitor efficiency found at 95.65% for 5 g of ASN in 1 M HCl solution. Regarding the electrochemical test, ASN performs as a mixed-type corrosion inhibitor. The weight loss test findings corroborated the electrochemical investigations, indicating that ASN had a high inhibitive effect on X65 steel in an acid medium. The ASN nanosize gives a huge surface area, resulting in increased reaction activity and the development of more shielding coatings. This study sheds light on the development of sustainable corrosion inhibitors for X65 steel.

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Evaluation of Efficiency of Avocado Seed Powder (Persea Americana) as a Corrosion Inhibitor in Sae 1008 Carbon Steel in Acidic Medium / Avaliação Da Eficiência Da Semente De Abacate Em Pó (Persea Americana) Como Inibidor De Corrosão Em Aço Carbono Sae 1008 Em Meio Ácido

Abstract: Evaluation of Efficiency of avocado seed powder (Persea Americana) as a corrosion inhibitor in SAE 1008 carbon steel in acidic mediumAvaliação da eficiência da semente de abacate em pó (Persea Americana) como inibidor de corrosão em aço carbono SAE 1008 em meio ácido

Cited by 7 publications

References 22 publications

Agro-Industrial Residues and Plant Biomass as Green Corrosion Inhibitors

Agro-Industrial Residues and Plant Biomass as Green Corrosion Inhibitors

Hexane extract of Persea schiedeana Ness as green corrosion inhibitor for the brass immersed in 0.5 M HCl

Understanding the inhibitory mechanism and protection performance of avocado seed nanoparticle extract in API X65 steel corrosion in a 1M HCl acid environment

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