Heterocyclic biomolecules as green corrosion inhibitors

Quraishi, M. A.; Chauhan, Dheeraj Singh; Saji, Viswanathan S.

doi:10.1016/j.molliq.2021.117265

Cited by 98 publications

(37 citation statements)

References 458 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Natural inhibitors are not toxic and in higher demand compared to commercial inhibitors since they are both sustainable and environmentally safe. [68][69][70][71][72] Anticorrosive effects of plant-based inhibitors, such as CC extract, are related to active secondary metabolites such as different types of phenolic acid flavonoid, alkaloid, steroid, terpenoid and other polyphenolic contained in plant extracts, which are generally stable in acidic solutions. [73][74][75] The adsorption of the secondary metabolites presence in the CC extract on MS in 0.5 M H 2 SO 4 solution is feasible, spontaneous and by physical according to the Langmuir isotherm model.…”

Section: The Effectof Ki Addition To the Inhibition Performancementioning

confidence: 99%

Adsorption and Corrosion Inhibition of Cactus cladode Extract and Effect of KI Addition on Mild Steel in 0.5 M H₂SO₄

et al. 2022

View full text Add to dashboard Cite

Adsorption and corrosion inhibitionof Cactus cladode(CC) extract collectedin eastern Algeria from areas of Chetaibi in Annaba on mild steel (MS) in 0.5 MH2SO4 solution were studied with potentiodynamic polarization (PP) and electrochemical impedance spectroscopy (EIS) measurements. The electrochemical stability of surface inhibitor film was investigated by chronoamperometry (CA) technique. The MS surface exposed to thecorrosive medium in the absence and presence of CC extract was examined by scanning electron microscopy (SEM) and energy dispersive X‐ray spectroscopy (EDX) techniques. The potential of zero charge(Epzc) of MS in the presence of CC extract was determined by EIS methodand excess surface scharge of the metal surface was determined. It was found that CC extract has a high inhibition effeciency on the corrosion of MS. The thermodynamic examinations indicated that Kads was 20.88 L g−1 and ▵G0ads was −24.64 kJ mol−1.Thevalue of Epzc confirmed excess positive charge atthe MS surface. The adsorption of extract molecules obeys to Langmuir isotherm. The inhibition efficiency was 91.8 % at 1000 ppm CC extract concentration, while it iscreased to 97.7 % when 1000 ppm KI was added to this solution.The inhibitor film formed over the metal surface has a hydrophobic character.The addition of KI to the inhibited solution stabilizes the surface film and enhances inhibition efficiency.

show abstract

Section: The Effectof Ki Addition To the Inhibition Performancementioning

confidence: 99%

Adsorption and Corrosion Inhibition of Cactus cladode Extract and Effect of KI Addition on Mild Steel in 0.5 M H₂SO₄

et al. 2022

View full text Add to dashboard Cite

show abstract

“…The highest inhibition efficiency of 51.57% was reached with the alkaloid-rich CL2 in a low concentration of 50 ppm. The use of biomolecules for the formulation of corrosion inhibitors is expected to have a lower environmental impact compared to commercial inhibitors from chemical synthesis [49]. Hereafter, we focused on CL2 for further analysis to develop better insight into the inhibition process.…”

Section: Potentiodynamic Polarization Plots Of Ab In Hcl Media With T...mentioning

confidence: 99%

Croton lechleri Extracts as Green Corrosion Inhibitors of Admiralty Brass in Hydrochloric Acid

et al. 2021

View full text Add to dashboard Cite

Croton lechleri, commonly known as Dragon’s blood, is a tree cultivated in the northwest Amazon rainforest of Ecuador and Peru. This tree produces a deep red latex which is composed of different natural products such as phenolic compounds, alkaloids, and others. The chemical structures of these natural products found in C. lechleri latex are promising corrosion inhibitors of admiralty brass (AB), due to the number of heteroatoms and π structures. In this work, three different extracts of C. lechleri latex were obtained, characterized phytochemically, and employed as novel green corrosion inhibitors of AB. The corrosion inhibition efficiency (IE%) was determined in an aqueous 0.5 M HCl solution by potentiodynamic polarization (Tafel plots) and electrochemical impedance spectroscopy, measuring current density and charge transfer resistance, respectively. In addition, surface characterization of AB was performed by scanning electron microscopy, energy-dispersive X-ray spectroscopy, and X-ray photoelectron spectroscopy techniques. Chloroform alkaloid-rich extracts resulted in IE% of 57% at 50 ppm, attributed to the formation of a layer of organic compounds on the AB surface that hindered the dezincification process. The formulation of corrosion inhibitors from C. lechleri latex allows for the valorization of non-edible natural sources and the diversification of the offer of green corrosion inhibitors for the chemical treatment of heat exchangers.

show abstract

“…The various inhibitors that have been applied and test industrially as corrosion additives [9][10][11][12] are those are low-or nontoxic are currently better than the materials used in the recent past such as glucose, gellan gum, carboxymethyl, hydroxypropyl cellulose [9,11], xanthan gum [10], and chitosan-g-PEG [12]. Recently, the research in the area of eco-friendly or green corrosion inhibitors has been directed toward fabricating inexpensive, efficient composites that have no or minimal environmental impact [13,14].…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Characterization of Zn–Organic Frameworks Containing Chitosan as a Low-Cost Inhibitor for Sulfuric-Acid-Induced Steel Corrosion: Practical and Computational Exploration

et al. 2022

View full text Add to dashboard Cite

In this work, a Zn–benzenetricarboxylic acid (Zn@H3BTC) organic framework coated with a dispersed layer of chitosan (CH/Zn@H3BTC) was synthesized using a solvothermal approach. The synthesized CH/Zn@H3BTC was characterized by Fourier transform infrared spectroscopy (FTIR), field emission scanning electron microscope (FESEM), thermal gravimetric analysis (TGA), and Brunauer, Emmett, and Teller (BET) surface area. The microscopic observation and the analysis of the BET surface area of CH/Zn@H3BTC nanocomposites indicated that chitosan plays an important role in controlling the surface morphology and surface properties of the Zn@H3BTC. The obtained findings showed that the surface area and particle size diameter were in the range of 80 m2 g−1 and 800 nm, respectively. The corrosion protection characteristics of the CH/Zn@H3BTC composite in comparison to pristine chitosan on duplex steel in 2.0 M H2SO4 medium determined by electrochemical (E vs. time, PDP, and EIS) approaches exhibited that the entire charge transfer resistance of the chitosan- and CH/Zn@H3BTC-composite-protected films on the duplex steel substrate was comparatively large, at 252.4 and 364.8 Ω cm2 with protection capacities of 94.1% and 97.8%, respectively, in comparison to the unprotected metal surface (Rp = 20.6 Ω cm2), indicating the films efficiently protected the metal from corrosion. After dipping the uninhabited and protected systems, the surface topographies of the duplex steel were inspected by FESEM. We found the adsorption of the CH/Zn@H3BTC composite on the metal interface obeys the model of the Langmuir isotherm. The CH/Zn@H3BTC composite revealed outstanding adsorption on the metal interface as established by MD simulations and DFT calculations. Consequently, we found that the designed CH/Zn@H3BTC composite shows potential as an applicant inhibitor for steel protection.

show abstract

Heterocyclic biomolecules as green corrosion inhibitors

Cited by 98 publications

References 458 publications

Adsorption and Corrosion Inhibition of Cactus cladode Extract and Effect of KI Addition on Mild Steel in 0.5 M H₂SO₄

Adsorption and Corrosion Inhibition of Cactus cladode Extract and Effect of KI Addition on Mild Steel in 0.5 M H₂SO₄

Croton lechleri Extracts as Green Corrosion Inhibitors of Admiralty Brass in Hydrochloric Acid

Synthesis and Characterization of Zn–Organic Frameworks Containing Chitosan as a Low-Cost Inhibitor for Sulfuric-Acid-Induced Steel Corrosion: Practical and Computational Exploration

Contact Info

Product

Resources

About

Heterocyclic biomolecules as green corrosion inhibitors

Cited by 98 publications

References 458 publications

Adsorption and Corrosion Inhibition of Cactus cladode Extract and Effect of KI Addition on Mild Steel in 0.5 M H2SO4

Adsorption and Corrosion Inhibition of Cactus cladode Extract and Effect of KI Addition on Mild Steel in 0.5 M H2SO4

Croton lechleri Extracts as Green Corrosion Inhibitors of Admiralty Brass in Hydrochloric Acid

Synthesis and Characterization of Zn–Organic Frameworks Containing Chitosan as a Low-Cost Inhibitor for Sulfuric-Acid-Induced Steel Corrosion: Practical and Computational Exploration

Contact Info

Product

Resources

About

Adsorption and Corrosion Inhibition of Cactus cladode Extract and Effect of KI Addition on Mild Steel in 0.5 M H₂SO₄

Adsorption and Corrosion Inhibition of Cactus cladode Extract and Effect of KI Addition on Mild Steel in 0.5 M H₂SO₄