“…Because the organic molecules in BLE extract have greater dipole moments than water, they readily substitute water molecules at the surface of the X52-steel 44 . Table 5 compares the current study’s findings to previous work done by other researchers and demonstrates that the BLE extract can be highly efficient anti-corrosive agents at lower dosages 14 , 15 , 39 , 45 , 46 .…”
This study set out to determine the effectiveness of birch leaves extract (BLE) as a corrosion inhibitor against X52 pipeline steel in the pickling solution. Chemical and electrochemical techniques, as well as scanning electron microscope (SEM), Fourier-transform infrared (FT-IR), and adsorption isotherms were used in the research. Various triterpenoids, including betulin, betulinic acid, oleanolic acid, sitosterol, and kaempferol, are unquestionably involved in the corrosion inhibition mechanism, according to the high-performance-liquid-chromatography (HPLC) analysis. The 95% efficiency of the produced BLE extract (at optimum concentration 400 mg L−1) significantly reduced the corrosion rate of X52 pipeline steel in the pickling solution. The adsorption of BLE extract molecules on the X52-steel surface was demonstrated by SEM and FT-IR analysis. The adsorption activity follows the Langmuir adsorption theory.
“…Because the organic molecules in BLE extract have greater dipole moments than water, they readily substitute water molecules at the surface of the X52-steel 44 . Table 5 compares the current study’s findings to previous work done by other researchers and demonstrates that the BLE extract can be highly efficient anti-corrosive agents at lower dosages 14 , 15 , 39 , 45 , 46 .…”
This study set out to determine the effectiveness of birch leaves extract (BLE) as a corrosion inhibitor against X52 pipeline steel in the pickling solution. Chemical and electrochemical techniques, as well as scanning electron microscope (SEM), Fourier-transform infrared (FT-IR), and adsorption isotherms were used in the research. Various triterpenoids, including betulin, betulinic acid, oleanolic acid, sitosterol, and kaempferol, are unquestionably involved in the corrosion inhibition mechanism, according to the high-performance-liquid-chromatography (HPLC) analysis. The 95% efficiency of the produced BLE extract (at optimum concentration 400 mg L−1) significantly reduced the corrosion rate of X52 pipeline steel in the pickling solution. The adsorption of BLE extract molecules on the X52-steel surface was demonstrated by SEM and FT-IR analysis. The adsorption activity follows the Langmuir adsorption theory.
“…Example of SEM image can be seen in Figures 8 (a) and 8(b). Figure 8 Example of SEM image of mild steel surface (a) uninhibited solution, (b) inhibited solution [ 135 ]. …”
Section: Scanning Electron Microscopy (Sem)mentioning
confidence: 99%
“… Example of SEM image of mild steel surface (a) uninhibited solution, (b) inhibited solution [ 135 ]. …”
Section: Scanning Electron Microscopy (Sem)mentioning
“…The experimental investigation shows that at 3000 ppm DF molecules resist corrosion which is higher than 90% at 25 °C (4). The Terminalia arjuna leaves extract's ability to prevent corrosion against mild steel in 0.2 M HCl was explained by N. Hossain et al The mechanism suggests that the inhibition may be due to the interaction of heteroatoms unshared electron pair with metal vacant d orbital (5).…”
Owing to the high economic and environmental concerns, nowadays scientists have taken much attention to mitigate corrosion. The effectiveness of Garcinia gummi-gutta leaf extract (GGLE) at inhibiting corrosion on mild steel in 1 M HCl was examined in the current study using a weight loss strategy. The GGLE concentration was changed from 100 to 6000 ppm, and the results show that expanding the inhibitor concentration increased the efficacy of corrosion inhibition. At 6000 ppm concentration and 30°C, the maximum inhibitory efficiency was 82.2%; this efficiency decreases as temperature increases. The mechanism of sorption was deliberated by means of different adsorption isotherm and Langmuir adsorption isotherm model holds good for elucidating the adsorption mechanism. The thermodynamic and kinetic parameters were estimated to depict the corrosion process. X-ray photoelectron spectroscopy (XPS) was also used to confirm the development of a coating of inhibitor fragments that protect the metal surface.
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