Sunflower-head extract as a sustainable and eco-friendly corrosion inhibitor for carbon steel in hydrochloric acid and sulfuric acid solutions

Wang, Jingbao; Ma, Xinbin; Tabish, Mohammad; Wang, Jingyu

doi:10.1016/j.molliq.2022.120429

Cited by 13 publications

(3 citation statements)

References 58 publications

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“…The fitted impedance parameters, including the resistance of the testing medium ( R s ), the resistance in charge transfer process ( R ct ), and the constant phase elements of double layer capacitance (CPE dl ) were summarized in Table S4 (ESI†). The inhibition efficiencies ( η ) of CS-IL-Cin, CS-IL-Vin, and CS-IL-4-Py can be calculated by 50 where R 0 ct and R ct are the charge transfer resistances in the inhibitor free and inhibitor-containing medium, respectively.…”

Section: Resultsmentioning

confidence: 99%

Preparation and corrosion inhibition mechanism of a chitosan ionic liquid Schiff base for the protection of N80 in HCl solution

Li,

et al. 2024

New J. Chem.

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Section: Resultsmentioning

confidence: 99%

Preparation and corrosion inhibition mechanism of a chitosan ionic liquid Schiff base for the protection of N80 in HCl solution

Li,

et al. 2024

New J. Chem.

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“…It is worth noting that drugs usually detain the major structural aspects desired to achieve high corrosion inhibition potentials, such as heteroatoms and balance between hydrophobic and hydrophilic groups. Additionally, amino acids, natural extracts, carbohydrates, polymers, and gums are possible green chemistry solutions as organic compounds against corrosion (Figure 2) [8,14,[28][29][30][31][32][33][34][35]. Moreover, macrocyclic compounds are a particularly interesting class of organic molecular motifs.…”

Section: Organic Molecules In the Corrosion Inhibition Processmentioning

confidence: 99%

Synthetic Organic Molecules as Metallic Corrosion Inhibitors: General Aspects and Trends

Lessa

2023

Organics

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Organic molecules are gaining special attention over the last years in the corrosion area thanks to their general low achievable cytotoxicity, structural versatility, and environmentally friendly obtainment methods. Under those approaches, synthetic organic motifs have attracted the interest of researchers due to their variated methods of obtention through molecular manipulation via diverse chemical reactions, allowing the production of adequately planned structures or repurposing their original application in the case of drugs. This review summarizes general aspects that are desired in organic molecules as corrosion inhibitors, presenting selected works published in the 2022–2023 period and emphasizing the importance of finding novel and different organic corrosion inhibitors. Patents were not considered in this review. Scifinder, Google Scholar, and Web of Science were employed as databases. Mathematical and analytical methods involved in the search for corrosion inhibitors are out of this review’s scope.

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“…However, in recent years, research in this field has focused on green inhibitors, effective molecules with a low or null environmental impact. Some of the vegetal species extracts used as corrosion inhibitors of steel when sulfuric acid is employed are sunflower-head extract, which presents an efficiency of 92% at a concentration of 3 g/L at 25 °C (Wang et al, 2022). Brassica oleracea L. obtained an efficiency of 92% at a concentration of 300 mg/L (Li et al, 2021), Citrus aurantifolia achieved an efficiency of 96% at a concentration of 250 mg/L (Haldhar et al, 2019), and Hymenea stigonocarpa reached 87% at a concentration of 1,233 mg/L (De Britto and Spinelli, 2020).…”

Section: Introductionmentioning

confidence: 99%

Inhibition of corrosion on API 5L X52 pipeline steel in acid media by Tradescantia spathacea

Rodríguez-Torres,

Valladares-Cisneros,

Chávez-Díaz

et al. 2024

Front. Chem.

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The concentration effect of Tradescantia spathacea (T. spathacea) as corrosion inhibitor of API 5L X52 steel in 0.5 M of H2SO4 was studied here through electrochemical and gravimetric techniques. To achieve it, samples of the material were prepared to be submitted to each of the tests. Results from electrochemical impedance spectroscopy (EIS) showed that there was an optimum concentration of the inhibitor in which is reached the maximum inhibition efficiency, displaying the best inhibition characteristics for this system with a maximum inhibition of 89% by using 400 ppm. However, the efficiency decreased until 40% when the temperature was increased to 60°C. Potentiodynamic polarization curves (PDP) revealed that some of the present compounds of T. spathacea may affect anodic and cathodic process, so it can be classified as a mix-type corrosion inhibitor for API 5L X52 in sulfuric acid. Also, this compound followed an adsorption mechanism; this can be described through a Frumkin isotherm with an adsorption standard free energy difference (ΔG°) of −56.59 kJmol−1. Metal surface was studied through scanning electron microscope, results revealed that by adding inhibitor, the metal surface is protected; also, they evidenced low damages compared with the surface with no inhibitor. Finally, Tradescantia spathacea inhibited the corrosion process with 82% efficiency.

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Sunflower-head extract as a sustainable and eco-friendly corrosion inhibitor for carbon steel in hydrochloric acid and sulfuric acid solutions

Cited by 13 publications

References 58 publications

Preparation and corrosion inhibition mechanism of a chitosan ionic liquid Schiff base for the protection of N80 in HCl solution

Preparation and corrosion inhibition mechanism of a chitosan ionic liquid Schiff base for the protection of N80 in HCl solution

Synthetic Organic Molecules as Metallic Corrosion Inhibitors: General Aspects and Trends

Inhibition of corrosion on API 5L X52 pipeline steel in acid media by Tradescantia spathacea

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