Adsorption and corrosion inhibition performance of Tunbergia fragrans extract on mild steel in acid medium

Muthukumarasamy, Kalaiselvi; Pitchai, Sakunthala; Devarayan, Kesavan; Nallathambi, Lawrence

doi:10.1016/j.matpr.2020.06.533

Cited by 17 publications

(4 citation statements)

References 18 publications

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“…In other similar studies, the ethanolic extract of Tunbergia fragrans was prepared by Muthukumarasamy et al [ 216 ], and then the inhibition action of the extract for mild steel corrosion in 1.0 M HCl was studied using WL, PDP, and EIS. They observed that the extract acted as a mixed-type corrosion inhibitor, and the inhibition efficiency was enhanced with an increase in inhibitor concentration to reach a maximum of 81.1% at 500 ppm.…”

Section: Classification and Statistical Analysismentioning

confidence: 99%

“…Moreover, many effective functional groups on the surface of adsorption films were detected, such as Fe-C, Fe-N, and Fe-O bonds identified by FTIR, iron cyanide, and a supermolecule identified by GI-XRD, and C=C, C=O, and O-H bonds identified by UVvis, the cited analysis results are depicted as follows (Figure 12). In other similar studies, the ethanolic extract of Tunbergia fragrans was prepared by Muthukumarasamy et al [216], and then the inhibition action of the extract for mild steel corrosion in 1.0 M HCl was studied using WL, PDP, and EIS. They observed that the extract acted as a mixed-type corrosion inhibitor, and the inhibition efficiency was enhanced with an increase in inhibitor concentration to reach a maximum of 81.1% at 500 ppm.…”

Section: Plant Extractsmentioning

confidence: 99%

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Organic Compounds as Corrosion Inhibitors for Carbon Steel in HCl Solution: A Comprehensive Review

Chen

Zhang

2022

Materials

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Most studies on the corrosion inhibition performance of organic molecules and (nano)materials were conducted within “carbon steel/1.0 M HCl” solution system using similar experimental and theoretical methods. As such, the numerous research findings in this system are sufficient to conduct comparative studies to select the best-suited inhibitor type that generally refers to a type of inhibitor with low concentration/high inhibition efficiency, nontoxic properties, and a simple and cost-economic synthesis process. Before data collection, to help readers have a clear understanding of some crucial elements for the evaluation of corrosion inhibition performance, we introduced the mainstay of corrosion inhibitors studies involved, including the corrosion and inhibition mechanism of carbon steel/HCl solution systems, evaluation methods of corrosion inhibition efficiency, adsorption isotherm models, adsorption thermodynamic parameters QC calculations, MD/MC simulations, and the main characterization techniques used. In the classification and statistical analysis section, organic compounds or (nano)materials as corrosion inhibitors were classified into six types according to their molecular structural characteristics, molecular size, and compound source, including drug molecules, ionic liquids, surfactants, plant extracts, polymers, and polymeric nanoparticles. We outlined the important conclusions obtained from recent literature and listed the evaluation methods, characterization techniques, and contrastable experimental data of these types of inhibitors when used for carbon steel corrosion in 1.0 M HCl solution. Finally, statistical analysis was only performed based on these data from carbon steel/1.0 M HCl solution system, from which some conclusions can contribute to reducing the workload of the acquisition of useful information and provide some reference directions for the development of new corrosion inhibitors.

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Section: Classification and Statistical Analysismentioning

confidence: 99%

Section: Plant Extractsmentioning

confidence: 99%

Organic Compounds as Corrosion Inhibitors for Carbon Steel in HCl Solution: A Comprehensive Review

Chen

Zhang

2022

Materials

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“…Various plant sections contain various phytochemicals concentrations and types as reported by Umoren et al 19 . Tunbergia fragrans inhibited mild steel corrosion in 1 M HCl, according to Muthukumarasamy et al 20 . At 500 ppm concentration, the extract had a maximum efficiency of 81%.…”

Section: Introductionmentioning

confidence: 99%

Theoretical, chemical, and electrochemical studies of Equisetum arvense extract as an impactful inhibitor of steel corrosion in 2 M HCl electrolyte

Deyab

Mohsen

Guo

2022

Sci Rep

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A new type of Equisetum arvense aerial part (EAAP) extract was ready to be tested as a corrosion inhibitor for steel-based parts in Multi-stage flash (MSF) segments while the segments were being acid cleaned. The EAAP extract was identified using Fourier-transform infrared (FTIR) and High-performance liquid chromatography (HPLC). When compared to the specimen exposed to blank solution, EAAP extract molecules covered about 97% of the carbon steel surface in 2 M HCl solution, and the corrosion rate was reduced to 0.58 ± 0.02 μg cm−2 h−1 at 300 mg l−1. EAAP extract tends to have a blended impact on both anodic and cathodic sites on the surface of carbon steel. The thermodynamic activation factors are substantially higher in the presence of extract solution than in the absent of extract, demonstrating that the carbon steel surface would corrode slowly in the presence of EAAP extract. Theoretical models were used to validate the adsorption of EAAP extract on steel surfaces.

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“…Most chemical process industries inadvertently add toxic chemicals to acid-cleaning solutions in order to protect steel equipment during operations (Alrefaee et al, 2020;Ishak et al, 2019;Muthukumarasamy et al, 2020). When such solutions are discharged into the environment, they impact negatively on the biotic and abiotic population.…”

Section: Introductionmentioning

confidence: 99%

Inhibitory action of Spondias mombin leaves extracts on corrosion of mild steel in 1M HCl

Adama¹,

Onyeachu²

2023

Nig. J. Technol. Dev.

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Acid corrosion of steel and its associated financial and material costs are serious challenges to the chemical industry, and protecting these alloys through the use of effective corrosion inhibitors is imperative. In this study, the corrosion inhibition of mild steel in 1M HCl media using water and ethanol extracts of Spondias mombin leaves was investigated via weight loss technique, electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization (PDP). The influence of temperature on inhibitor behaviour was also studied. Both extracts inhibited corrosion of mild steel via adsorption, following the Langmuir and Freundlich isotherms. The inhibition efficiency (IE) increased as extracts concentration was increased. After 24 and 72 hours exposure in the acid solution at 25 ℃, 500 ppm of extracts delivered maximum efficiency of (94.44 % and 76.52% for ethanol) and (51.52 % and 58,97 % for water). However, increasing temperature to 40 ℃ and 60 ℃ (after 24 hours) significantly boosted the efficiency of water extract (favoring inhibition via combined physical and chemical adsorption) but depreciated the performance of ethanol extract. The extracts provide good protection to mild steel in acidic environment and are therefore recommended as green alternatives to existing toxic ones.

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Adsorption and corrosion inhibition performance of Tunbergia fragrans extract on mild steel in acid medium

Cited by 17 publications

References 18 publications

Organic Compounds as Corrosion Inhibitors for Carbon Steel in HCl Solution: A Comprehensive Review

Organic Compounds as Corrosion Inhibitors for Carbon Steel in HCl Solution: A Comprehensive Review

Theoretical, chemical, and electrochemical studies of Equisetum arvense extract as an impactful inhibitor of steel corrosion in 2 M HCl electrolyte

Inhibitory action of Spondias mombin leaves extracts on corrosion of mild steel in 1M HCl

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