Corrosion inhibition effect and adsorption behaviour of nicotinamide derivatives on mild steel in hydrochloric acid solution

Chakravarthy, M. P.; Mohana, K. N.; Kumar, C.B. Pradeep

doi:10.1007/s40090-014-0019-3

Cited by 59 publications

(21 citation statements)

References 51 publications

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“…The obtained E corr value in case of CCA being shifted toward the lower side of 85 mV, confirmed that CCA acts as a mixed inhibitor type and has control over not only anodic metal dissolution, but cathodic hydrogen evolution also [26,29]. Besides, as observed from Table 1 the cathodic and anodic slope (β c and β a ) values did not show much change, which indicated that CCA influences the anodic and cathodic reaction kinetics without affecting the reaction mechanism [30].…”

Section: Potentiodynamic Polarization Studiessupporting

confidence: 63%

Investigation of Anticorrosive Property of Carbazolecarbaldehyde Azine on Mild Steel Using Electrochemical, Morphological and Theoretical Studies

et al. 2020

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Mild steel (MS) is one among the extensively utilized materials in several industrial sectors, but prone to deterioration when exposed to acidic environment. The main focus of this study is to examine the corrosion inhibitive efficacy of 9-ethyl-3-carbazolecarboxaldehyde azine (CCA) on MS immersed in 0.5 M HCl medium. The corrosion inhibition efficiency of CCA which was investigated using potentiodynamic polarization (PDP) and electrochemical impedance spectroscopy (EIS) techniques improved with rise in temperature and inhibitor concentration. CCA showed a maximum inhibition efficiency of 92.4% at 323 K for 5 × 10–5 M concentration in 0.5 M HCl medium. The variation in the kinetic and thermodynamic parameters indicated chemisorption of CCA on MS, and its mixed-type inhibitive action followed Langmuir’s isotherm model. The infrared spectra provided evidences for the chemical interaction of CCA with MS specimen. Surface morphology evaluation using SEM and AFM in combination with elemental analysis using an energy dispersive X-ray analyser (EDX) indicated the creation of a protective adsorption layer of CCA on MS surface. The quantum chemical investigations performed using density functional theory (DFT) computations supplemented the experimental results, suggesting the potential corrosion inhibition behavior of CCA toward MS in aggressive HCl medium. Graphic Abstract

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Section: Potentiodynamic Polarization Studiessupporting

confidence: 63%

Investigation of Anticorrosive Property of Carbazolecarbaldehyde Azine on Mild Steel Using Electrochemical, Morphological and Theoretical Studies

et al. 2020

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“…Lowering in corrosion rate (CR) by rising Tetraclinis articulata extract doses is as a result of the fact that the metal surface coverage (θ) become larger via the adsorption of inhibitor molecules 27 . The reduce in CR possibly with rising in temperature via adsorption rate of Tetraclinis articulata extract on the MS surface has been raised at higher temperatures 28 .…”

Section: Resultsmentioning

confidence: 99%

Corrosion inhibition evaluation of tetraclinis articulata extract on mild steel in HCl solution

2018

jcbsc

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Herein, A study of corrosion inhibition of mild steel (MS) in 1.0 M HCl by Tetraclinis articulata extract as a green inhibitor had been achieved via chemical and electrochemical methods. Open circuit potential (OCP), Potentiodynamic polarization, electrochemical impedance spectroscopy and electrochemical frequency modulation tests had been examined. Adsorption & thermodynamic activation parameters had been recorded and evaluated. Temperature effect on the mild steel corrosion inhibition in a range between 298-328 K had been evaluated. The mild steel samples surface morphology in existence and nonexistence of Tetraclinis articulata extract had been evaluated via FT-IR spectroscopy measurements, Scanning Electron Microscopy and Atomic Force Microscopy. The gained data confirmed the protective layer formed on mild steel surface and demonstrated that the compounds which had been found in Tetraclinis articulata extract act as an effective and good inhibitors. Tafel curves demonstrated that the tested compound proceeds as a mixed-type inhibitor. The adsorption mode of Tetraclinis articulata extract had been matched with the Temkin adsorption isotherm model. The inhibition efficiency (IE%) had been found to improve with improvement of Tetraclinis articulata extract doses achieving maximum inhibition efficiency more than 80% at 298K.

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“…Energy Dispersive Analysis of X-rays is the most powerful method to find out the formation of protective film on the metal surface 21,22 .…”

Section: Energy Dispersive X-ray Analysis (Edx)mentioning

confidence: 99%

Investigating the Corrosion Inhibition Efficiency of Surgical Carbon Steel Instruments Used in Medical Field

Banu¹,

Babu²,

Rajendran³

2018

Int. Res. J. Pharm.

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The corrosion inhibition efficiency of Triton X 100 in controlling surgical carbon steel instrument corrosion in well water has been analysed by weight loss method. Mechanistic aspects of corrosion inhibition efficiency have been studied by Polarization and AC impedance measurements. The formulation consisting of 200 ppm of Triton X 100 and 50 ppm of Zn 2+ provides 84 % corrosion inhibition efficiency. A synergistic effect exists between the surfactant Triton X 100 and Zn 2+ . Polarization study confirms that Triton X 100 -Zn 2+ system functions as a mixed type of inhibitor. AC impedance spectra shows that a protective film is formed on the carbon steel surface. Cyclic voltammetry data confirms the stability of the protective film in presence of 3.5% NaCl solution. FTIR spectra reveals that the protective film consists of Triton X 100-Fe 2+ complex and Zn(OH)2. SEM, EDX, data indicate the possibility of formation of protective layer on the metal surface. FTIR spectra confirms the formation of protective film on the metal surface. AFM study reveals the surface morphology and gives the information of the thickness of the protective film. Contact angle measurement confirms the hydrophobic nature of the protective film formed on the carbon steel surface.

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Corrosion inhibition effect and adsorption behaviour of nicotinamide derivatives on mild steel in hydrochloric acid solution

Cited by 59 publications

References 51 publications

Investigation of Anticorrosive Property of Carbazolecarbaldehyde Azine on Mild Steel Using Electrochemical, Morphological and Theoretical Studies

Investigation of Anticorrosive Property of Carbazolecarbaldehyde Azine on Mild Steel Using Electrochemical, Morphological and Theoretical Studies

Corrosion inhibition evaluation of tetraclinis articulata extract on mild steel in HCl solution

Investigating the Corrosion Inhibition Efficiency of Surgical Carbon Steel Instruments Used in Medical Field

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