Lycium barbarum leaf extract as biodegradable corrosion inhibitor for copper in sulfuric acid medium

Gu, Tian; Xu, Zhi-Hong; Zheng, Xiaofeng; Fu, Anqing; Fan, Zhengxiu; Al‐Zaqri, Nabil; Chen, Jida; Tan, Bochuan; Li, Wenpo

doi:10.1016/j.indcrop.2023.117181

Cited by 23 publications

(4 citation statements)

References 53 publications

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“…Open circuit potential ( E ocp ) measurement was performed to determine the change in the corrosion potential of the 6N01 Al alloy with the immersion time, and the results are presented in Figure . Compared to the blank solution, the E ocp value of the 6N01 Al alloy immersed in the seawater with SPL shifts to the positive position, suggesting that the anodic corrosion of the 6N01 Al alloy is controlled by SPL . At the same time, with the increase of the concentration of SPL, the E ocp value exhibits a raised tendency, indicating the SPL could prevent the 6N01 Al alloy from corrosion with predominantly controlling the anodic reaction .…”

Section: Resultsmentioning

confidence: 90%

“…Compared to the blank solution, the E ocp value of the 6N01 Al alloy immersed in the seawater with SPL shifts to the positive position, suggesting that the anodic corrosion of the 6N01 Al alloy is controlled by SPL. 25 At the same time, with the increase of the concentration of SPL, the E ocp value exhibits a raised tendency, indicating the SPL could prevent the 6N01 Al alloy from corrosion with predominantly controlling the anodic reaction. 32 Furthermore, with prolonged immersion time, there is an escalating alteration in the E ocp value during the initial stage, followed by stabilization after 1800 s. This observation indicates that the interface between the 6N01 Al alloy and the solution attains a steady state after 1800 s. To gain further insight into the corrosion characteristics of the Al alloy surface, electrochemical impedance spectrum (EIS) measurements were conducted, as depicted Figure 4.…”

Section: ■ Results and Discussionmentioning

confidence: 95%

“…17 Li et al recently revealed that Lycium barbarum leaf was a biodegradable corrosion inhibitor with 94.1% of inhibition efficiency for copper in 0.5 M H 2 SO 4 solution at 400 mg L −1 by various electrochemical tests. 25 Liao et al first obtained the Acanthopanax senticosus leaf extract by a one-step pure water method and then investigated its corrosion inhibition performance for carbon steel in an acidic solution by various electrochemical measurements. 26 However, most of the plant extracts exhibit a relatively low yield, and the raw materials are rare.…”

Section: ■ Introductionmentioning

confidence: 99%

“…For example, Guo et.al reported that soybean extract as a green corrosion inhibitor exhibits about 93.2% of inhibition efficiency for carbon steel in sulfuric solution . Li et al recently revealed that Lycium barbarum leaf was a biodegradable corrosion inhibitor with 94.1% of inhibition efficiency for copper in 0.5 M H 2 SO 4 solution at 400 mg L –1 by various electrochemical tests . Liao et al first obtained the Acanthopanax senticosus leaf extract by a one-step pure water method and then investigated its corrosion inhibition performance for carbon steel in an acidic solution by various electrochemical measurements .…”

Section: Introductionmentioning

confidence: 99%

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In-Depth Insight into Corrosion Inhibition Performance of Sweet Potato Leaf Extract as a Green and Efficient Inhibitor for 6N01 Al Alloy in the Seawater: Experimental and Theoretical Perspectives

Tang,

Zhou,

et al. 2024

Langmuir

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Corrosion protection of metal has become an important and urgent topic, which requires the development of an inexpensive, environmentally friendly, and highly efficient corrosion inhibitor. Herein, a sweet potato leaf extract (SPL) was obtained by a simple water-based extraction method and then as a green corrosion inhibitor for 6N01 Al alloy in the seawater was well investigated by the weight loss method and various electrochemical tests. Fourier transform infrared (FT-IR) and ultraviolet−visible (UV−vis) spectroscopies were carried out to investigate the compositions of SPL. The findings from the potentiodynamic polarization (PDP) curves suggest that SPL functions as a typical mixed-type corrosion inhibitor. Notably, the maximum corrosion inhibition efficiency reaches 94.6% following a 36 h immersion period at 25 °C. The adsorption behavior of SPL on the Al alloy surface belongs to the Langmuir adsorption isotherm. The Gibbs free energy value illustrates that the adsorption of SPL contains both physisorption and chemisorption. Scanning electron microscopy (SEM) and X-ray photoelectron spectroscopy (XPS) indicate that SPL is firmly attached to the Al alloy surface by making a protective layer, which can effectively inhibit the corrosion of the Al alloy in the seawater. Furthermore, quantum chemical calculations were applied to validate the chemical adsorption and elucidate the relationship between the electronic structure of the active components in SPL and their effectiveness in corrosion inhibition.

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Section: Resultsmentioning

confidence: 90%

Section: ■ Results and Discussionmentioning

confidence: 95%

Section: ■ Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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In-Depth Insight into Corrosion Inhibition Performance of Sweet Potato Leaf Extract as a Green and Efficient Inhibitor for 6N01 Al Alloy in the Seawater: Experimental and Theoretical Perspectives

Tang,

Zhou,

et al. 2024

Langmuir

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Carbon Dots for Anti‐Corrosion

Xiang,

Wang,

Liang

et al. 2024

Adv Funct Materials

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Carbon dots (CDs) have garnered extensive attention owing to their excellent biocompatibility, elevated specific surface area, and facile functionalization, as well as their diverse methods of preparation. In recent times, CDs have been applied for anti‐corrosion and obtained some significant results. In this work, the preparation methods of CDs are first briefly introduced, and the relative merits of different approaches are highlighted. Subsequently, the application of CDs in the realm of corrosion inhibitors is discussed, and the corrosion inhibition effects and mechanism of nitrogen‐doped CDs, nitrogen and sulfur‐co‐doped CDs, as well as CDs functionalized with other elements and nitrogen‐co‐doped are summarized. Finally, the application of CDs and functionalized CD‐modified coatings for anti‐corrosion and their protective mechanism is analyzed in detail. This review summarizes recent progress in research related to CDs and heteroatom‐doped CDs in anti‐corrosion applications and anticipates the prospects and applications of CDs in corrosion protection. With their unique properties and versatile applications, CDs are expected to assume a progressively pivotal role in the advancement of cutting‐edge corrosion protection technologies.

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Green Corrosion Inhibition of Mild Steel in 1.0 M HCl Using Myrtus Communis Essential Oil: Experimental and Theoretical Investigations

Chaouche,

Tiskar,

Amri

et al. 2024

ChemistrySelect

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This study investigates the green corrosion inhibition of mild steel in 1.0 M HCl using Myrtus communis essential oil (EOMC). Experimental and computational methods were combined to evaluate the corrosion inhibition effectiveness of EOMC. Weight loss measurements and electrochemical techniques, demonstrated that EOMC achieves a maximum corrosion inhibition efficiency of 94.81% at a concentration of 400 ppm of MCEO extract. The icorr significantly decreased from 983 µA/cm2 in the 1.0 M HCl solution to 51 µA/cm2 at 10−3 M, demonstrating the inhibitor's effectiveness. Polarization studies suggested mixed‐type inhibition, affecting both anodic and cathodic reactions, supported by changes in Tafel slopes. The Rct reached 462 Ω cm2 at 400 ppm of EOMC, enhancing the steel's protective capability. Higher temperatures increased the corrosion rate, with icorr values rising from 51 µA/cm2 at 298 K to 501 µA/cm2. Surface analysis using scanning electron microscopy coupled with energy‐dispersive X‐ray spectroscopy (SEM‐EDX) confirmed the formation of a protective layer on the steel surface in the presence of EOMC. Additionally, density functional theory (DFT) calculations and molecular dynamics (MD) simulations provided further insights into the adsorption behavior of the EOMC molecules on the MS surface, revealing that the inhibition process involves both physisorption and chemisorption mechanisms.

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Lycium barbarum leaf extract as biodegradable corrosion inhibitor for copper in sulfuric acid medium

Cited by 23 publications

References 53 publications

In-Depth Insight into Corrosion Inhibition Performance of Sweet Potato Leaf Extract as a Green and Efficient Inhibitor for 6N01 Al Alloy in the Seawater: Experimental and Theoretical Perspectives

In-Depth Insight into Corrosion Inhibition Performance of Sweet Potato Leaf Extract as a Green and Efficient Inhibitor for 6N01 Al Alloy in the Seawater: Experimental and Theoretical Perspectives

Carbon Dots for Anti‐Corrosion

Green Corrosion Inhibition of Mild Steel in 1.0 M HCl Using Myrtus Communis Essential Oil: Experimental and Theoretical Investigations

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