Halogen-substituted pyrazolo-pyrimidine derivatives as corrosion inhibitors for copper in sulfuric acid solution

doi:10.17675/2305-6894-2018-7-2-9

Cited by 3 publications

(2 citation statements)

References 39 publications

(40 reference statements)

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“…Fig. 2 shows that due to the effectiveness of the protective film, the addition of an inhibitor only increases the impedance value, which is demonstrated by the similar shape between the absence and presence of SCLE addition [45].…”

Section: Discussion Of Syzygium Cumini As a Green Corrosion Inhibitormentioning

confidence: 80%

Effect of syzygium cumini leaf extract as a green corrosion inhibitor on API 5l carbon steel in 1M HCL

Riastuti

Mashanafie

Rizkia

et al. 2022

EEJET

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Corrosion in API 5L steel under 1M HCl is a common issue; hence, creating a more effective and naturally-based inhibitor is critical. In this research, Syzygium Cumini leaf extract (SCLE) was used as a new green corrosion inhibitor under acidic conditions. The inhibition properties of the novel cumini extract were thoroughly characterized using potentiodynamic polarization (PDP), electrochemical impedance spectroscopy (EIS), Fourier-transform infrared spectroscopy (FTIR), and atomic force microscope (AFM). The results show that the cumini inhibitor has excellent corrosion inhibition with 93 % inhibition efficiency. The adsorption behavior of the inhibitor follows the Langmuir Adsorption Isotherm due to the nearness of R2 to unity. The potentiodynamic and electrochemical measurements demonstrate the mixed type of corrosion inhibitor. Thermodynamic calculation of ΔGads is – 18.41 kJ mol-1 showing the physical adsorption process between the inhibitor and metals. Further inspection of ΔHads at ‒58.93 kJ mol-1 considers releasing energy during adsorption. The FTIR results agree with the increased growth of passive layers due to the adsorption of polyphenol and flavonoids on metals. Remarkably, the adsorption peak at 3266.59 cm-1 corresponds to the adsorption of –OH. The peak at 1612.56 and 1698.4 cm-1 is attributed to C=C and C=O functional groups. The above functional groups serve as adsorption centers to reduce the corrosion effect. The surface treatment of AFM indicated a good relationship with the functional group characterization and confirmed the significant corrosion rate reduction. This work can be used as a benchmark to develop a natural plant as a corrosion inhibitor.

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Section: Discussion Of Syzygium Cumini As a Green Corrosion Inhibitormentioning

confidence: 80%

Effect of syzygium cumini leaf extract as a green corrosion inhibitor on API 5l carbon steel in 1M HCL

Riastuti

Mashanafie

Rizkia

et al. 2022

EEJET

View full text Add to dashboard Cite

show abstract

“…The polar functional groups along with the non-bonding electrons of heteroatoms and pi-electrons of the multiple bonds behave as adsorption centres during interactions between inhibitor and metal surface. The interactions of inhibitors with metal result into their adsorption on the surface which is behaves as barrier for corrosion process [21][22][23][24][25][26][27].…”

Section: Corrosion Monitoring Techniquesmentioning

confidence: 99%

Dendrimers as novel class of polymeric corrosion inhibitors: A review

2018

Int. J. Corros. Scale Inhib.

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Dendrimers are a new class of highly branched, nano-sized, monodisperse macromolecules that have several fascinating physical and chemical characteristics. They are highly soluble in the polar solvents, contain several surface functionality and high surface area which makes them suitable reagents for industrial and biological applications. Recently, several dendrimers have been investigated as effective corrosion and scale inhibitors for metallic and silica corrosion using experimental and theoretical methods. Generally, dendrimers become effective by forming insoluble metal-dendrimer or silica-dendrimer composite on the surface. Their inhibition performance of dendrimers have been measured using several experimental such as weight loss, electrochemical (EIS and PDP) and surface (EDX, SEM and AFM) as well as computation techniques such as molecular dynamics simulation and DFT based quantum chemical calculations. The interactions between metal surface and dendrimers can be explain through some common parameters such as E HOMO , E LUMO , ∆E, electronegativity (χ), hardness (η), softness (σ), dipole moment (µ) and fraction of electron transfer (∆N). Present book chapter deals with detail description on the corrosion inhibition and anti-scaling behaviours of dendrimers for metals and silica in several electrolytic media.

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Synthesis, spectroscopic characterization of a new schiff base molecule, investigation as an efficient corrosion inhibitor for copper in sulfuric acid medium: combination of experimental and theoretical researches

Benmahammed,

Issaadi,

Douadi

et al. 2024

Journal of Dispersion Science and Technology

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Halogen-substituted pyrazolo-pyrimidine derivatives as corrosion inhibitors for copper in sulfuric acid solution

Cited by 3 publications

References 39 publications

Effect of syzygium cumini leaf extract as a green corrosion inhibitor on API 5l carbon steel in 1M HCL

Effect of syzygium cumini leaf extract as a green corrosion inhibitor on API 5l carbon steel in 1M HCL

Dendrimers as novel class of polymeric corrosion inhibitors: A review

Synthesis, spectroscopic characterization of a new schiff base molecule, investigation as an efficient corrosion inhibitor for copper in sulfuric acid medium: combination of experimental and theoretical researches

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