Alkaloids extract of Retama monosperma (L.) Boiss. seeds used as novel eco-friendly inhibitor for carbon steel corrosion in 1 M HCl solution: Electrochemical and surface studies

2015 ◽  
Vol 357 ◽  
pp. 1294-1305 ◽  
Author(s):  
Naoual El Hamdani ◽  
Rabiaa Fdil ◽  
Mustapha Tourabi ◽  
Charafeddine Jama ◽  
Fouad Bentiss
Keyword(s):  
Carbon Steel ◽  
Steel Corrosion ◽  
Surface Studies ◽  
Retama Monosperma ◽  
Hcl Solution

Towards a theoretical understanding of alkaloid-extract Cytisine derivatives of Retama monosperma (L.) Boiss. Seeds, as eco-friendly inhibitor for carbon steel corrosion in acidic 1M HCl solution

2020 ◽  
Vol 19 (05) ◽  
pp. 2050013
Author(s):  
K. Sadik ◽  
N. El Hamdani ◽  
M. E. Hachim ◽  
S. Byadi ◽  
I. Bahadur ◽  
...  
Keyword(s):  
Carbon Steel ◽  
Density Functional ◽  
Steel Surface ◽  
Acidic Solution ◽  
Steel Corrosion ◽  
Protonation Site ◽  
Theoretical Understanding ◽  
Aqueous Acidic Solution ◽  
Retama Monosperma ◽  
Hcl Solution

Because of their availability, lower cost, biodegradability, respect for health, environmental standards and their extremely high efficiency [Benmessaoud Left D, Zertoubi M, Irhzo A, Azzi M, Revue: Huiles et extraits de plantes comme inhibiteurs de corrosion pour différents métaux et alliages dans le milieu acide chlorhydrique, J Mater Environ Sci 4:855–866, 2013], the green corrosion inhibitors are currently the most sought after candidates. The ultimate aim of this work is to study the selectivity and reactivity of a series of three molecules, namely Cytisine, Dehydro-Cytisine and N-methyl Cytisine which are the major constituents of Retama monosperma seeds alkaloid extract (AERS) as eco-friendly inhibitors of corrosion of carbon steel in acidic medium HCl (1M), using the density functional theory (DFT) at B3LYP/aug-cc-pvdz levels. Indeed, this alkaloid extract AERS has proven experimentally its corrosion inhibitory power for carbon steel in 1 M HCl even at lower concentration (94.42% at 400[Formula: see text]mg/L). Besides, its adsorption on the steel surface in 1 M HCl solution followed Langmuir’s isotherm [El Hamdani N, Fdil R, Tourabi M, Jama C, Bentiss F, Alkaloids extract of Retama monosperma (L.) Boiss. seeds used as novel eco-friendly inhibitor for carbon steel corrosion in 1 M HCl solution: Electrochemical and surface studies, Appl Surf Sci 357:1294–1305, 2015, doi: 10.1016/j.apsusc.2015.09.159; El Hamdani N, Contribution a la valorisation des parties aériennes de Retama Monosperma, phytochimie, activités antimicrobiennes et propriétés anticorrosives, Universite Chouaib Doukkali Faculte des sciences El jadida, 2015]. Herein, the major aim of this work is to investigate the likelihood of the carbon steel corrosion being inhibited by the protonated species in the aqueous acidic solution. For this purpose, after proving that the most favorable protonation site for protonation was N9, we have evaluated the structural, global and local reactivity descriptors, partial atomic charge in terms of Natural bond orbital (NBO) of the three protonated inhibitors at the level of N9, which are the most stable in the aqueous acidic solution. NBO analysis and the thermodynamic properties such as entropy, enthalpy, heat capacity and Gibbs free energy were also done. In conclusion, it was observed that three protonated molecules showed a high propensity to adsorb to the mild steel surface with a priority of the molecule d-CytN9H+.

Performance of Synthesized Acetone Based Inhibitor on Low Carbon Steel Corrosion in 1 M HCl Solution

2019 ◽  
Vol 3 (1) ◽  
pp. 263-276 ◽  
Author(s):  
Hameed B. Mahood ◽  
Asaad H. Sayer ◽  
Athraa H. Mekky ◽  
Anees A. Khadom
Keyword(s):  
Carbon Steel ◽  
Low Carbon Steel ◽  
Steel Corrosion ◽  
Low Carbon ◽  
Hcl Solution

scholarly journals Adsorption and anticorrosive behavior of aromatic epoxy monomers on carbon steel corrosion in acidic solution: computational studies and sustained experimental studies

RSC Advances ◽  
2019 ◽  
Vol 9 (26) ◽  
pp. 14782-14796 ◽  
Author(s):  
Omar Dagdag ◽  
Zaki Safi ◽  
Hamid Erramli ◽  
Omar Cherkaoui ◽  
Nuha Wazzan ◽  
...  
Keyword(s):  
Carbon Steel ◽  
Corrosion Inhibition ◽  
Acidic Solution ◽  
Experimental Studies ◽  
Steel Corrosion ◽  
Experimental Techniques ◽  
Computational Studies ◽  
Hcl Solution

Herein, the synthesis, characterization and corrosion inhibition effectiveness of two aromatic epoxy monomers (AEMs) in carbon steel corrosive dissolution in 1 M HCl solution was investigated using computational and experimental techniques.

Study inhibition by 2-mercaptobenzothiazole as inhibitor and effect for carbon steel corrosion in 1M HCl solution

2022 ◽  
Author(s):  
Raheem A. H. Al-Uqaily ◽  
Fatema Abbas Khazal ◽  
Subhi A. H. Al-Bayaty
Keyword(s):  
Carbon Steel ◽  
Steel Corrosion ◽  
Hcl Solution
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