Experimental and Theoretical Studies on Corrosion Inhibition Performance of Phenanthroline for Cast Iron in Acid Solution

Idir, Brahim; Kellou-Kerkouche, F.

doi:10.33961/jecst.2018.9.4.260

Cited by 24 publications

(9 citation statements)

References 80 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…After protonation, dipole moment is 11.67 Debye. The large increase in the value of dipole moment for protonated molecule confirmed its adsorption on metallic surface replacing water molecule [50]. The surface morphology, as observed under SEM, under varying experimental condition are shown in Fig.…”

Section: Quantum Chemical Studymentioning

confidence: 71%

Hydrazinecarbothioamide Derivative as an Effective Inhibitor for Corrosion Control: Electrochemical, Surface and Theoretical Studies

et al. 2021

View full text Add to dashboard Cite

Aluminium has played a significant role in the advancement of metal matrix composites (MMC) and has drawn the attention of researchers since Al composites find extensive application in aerospace, military and automobile industries. This paper describes the corrosion property of 6061 Al-15 vol%. SiC(p) composites in hydrochloric acid medium. This composite with high strength-to-weight ratio and other alluring properties undergoes corrosion in acid media and a study has been made in 0.5 M hydrochloric acid using (2Z)-2-(2-hydroxy-3methoxybenzylidene) hydrazinecarbothioamide (HCT) as an inhibitor. Results of the electrochemical studies and surface morphology are presented. With the increase in HCT concentration, inhibition efficiency increased. But efficiency decreased with an increase in temperature. The maximum efficiency was found to be 56.8% for the addition of 10 × 10–5 M HCT concentration at 303 K. The inhibitor was found to behave as a mixed inhibitor affecting both anodic metal dissolution reaction and cathodic hydrogen evolution to the same extent. The HCT molecules were found to physisorb over the Al-composite surface and adsorption followed Langmuir’s adsorption isotherm. Adsorption of HCT was confirmed by scanning electron microscopy (SEM) and atomic force microscopy (AFM). Computational studies using density functional theory (DFT) supported experimental findings. Density functional theory calculations gave a clear insight into the mechanistic aspects of corrosion inhibition. Graphic Abstract

show abstract

Section: Quantum Chemical Studymentioning

confidence: 71%

Hydrazinecarbothioamide Derivative as an Effective Inhibitor for Corrosion Control: Electrochemical, Surface and Theoretical Studies

et al. 2021

View full text Add to dashboard Cite

show abstract

“…Diversos trabalhos utilizando os índices de reatividade têm sido reportados devido a importância dos pontos de ancoragem para a elucidação do mecanismo de inibição (Al-Amiery et al, 2022; K. Cao et al,, 2022;Idir & Kellou-Kerkouche, 2018;John & Joseph, 2013).…”

Section: Rivesunclassified

Técnicas experimentais e teóricas aplicadas ao estudo de inibidores orgânicos de corrosão em meio ácido

Quattrociocchi

Santoro

Fonseca

et al. 2022

RSD

View full text Add to dashboard Cite

Materiais metálicos são amplamente utilizados na indústria como material de construção de equipamentos e tubulações. Naturalmente sofrem desgastes por reações químicas e eletroquímicas com ou sem esforço mecânico conhecidas como corrosão, formando produtos termodinamicamente estáveis. Este fenômeno é grave e de grande desafio em vários setores. Várias abordagens e métodos têm sido rigorosamente estudados e implementados para mitigar a corrosão. Uma das medidas mais comuns e eficazes para mitigar a corrosão em metais e proteger suas superfícies é o uso de inibidores de corrosão. Em particular, alguns compostos orgânicos se destacam na inibição da corrosão em ligas e metais em meio ácido. A maioria dos inibidores de corrosão orgânicos são aqueles que contêm heteroátomos (nitrogênio, enxofre e/ou oxigênio), grupos funcionais, elétrons π em ligações duplas ou triplas e/ou anéis aromáticos. A eficiência de inibição e a adsorção na superfície metálica desses compostos podem ser estudadas experimentalmente, como também utilizando método quânticos. Este trabalho fornece uma revisão de técnicas experimentais (espectroscopia de impedância eletroquímica, polarização potenciodinâmica e perda de massa) e quânticas fundamentais para o entendimento do comportamento de moléculas orgânicas como inibidoras de corrosão, assim como o mecanismo de inibição em meio ácido.

show abstract

“…34 From Table II, the i corr value was significantly declined with increasing the extract content, which indicates that Al becomes more resistant to corrosion. 35 In addition, when the extract concentration increases, the inhibition efficiency improves. The maximum inhibition efficiency is 89.61%, at 2.0 g l −1 of extract.…”

Section: Eis Additive Concentration G Lmentioning

confidence: 99%

Effect of Collard Greens Extract as an Electrolyte Additive on the Performance of Aluminum-Air Batteries

Phạm

Lee

Kim

2021

J. Electrochem. Soc.

View full text Add to dashboard Cite

This work reports the use of collard greens extract as a potent inhibitor for self-corrosion of the aluminum electrode in an alkaline aluminum-air battery via galvanostatic discharge tests, weight loss measurements, and electrochemical measurements. Scanning electron microscopy (SEM), atomic force microscopy (AFM), and fourier transform infrared (FT-IR) spectroscopy were performed to explore the morphology of aluminum. The obtained results show that the utilization efficiency and capacity density of the battery were significantly enhanced by the presence of the extract. The inhibition efficiency attained the maximum values at 2.0 g l −1 , about 89.61% and 87.90% from potentiodynamic polarization and electrochemical impedance spectroscopy measurements, respectively. Collard greens extract served as a cathodic inhibitor, and the adsorption mechanism of the extract adhered to the Freundlich adsorption isotherm. In particular, the physical absorption of the extract inhibitor on the aluminum surface was elucidated through nuclear magnetic resonance spectroscopy. Moreover, the phenolic compounds in the extract correspond to the corrosion inhibition effect on aluminum.

show abstract

Experimental and Theoretical Studies on Corrosion Inhibition Performance of Phenanthroline for Cast Iron in Acid Solution

Cited by 24 publications

References 80 publications

Hydrazinecarbothioamide Derivative as an Effective Inhibitor for Corrosion Control: Electrochemical, Surface and Theoretical Studies

Hydrazinecarbothioamide Derivative as an Effective Inhibitor for Corrosion Control: Electrochemical, Surface and Theoretical Studies

Técnicas experimentais e teóricas aplicadas ao estudo de inibidores orgânicos de corrosão em meio ácido

Effect of Collard Greens Extract as an Electrolyte Additive on the Performance of Aluminum-Air Batteries

Contact Info

Product

Resources

About