Environmentally Friendly Nonionic Surfactants Derived from Jatropha Oil Fatty Acids as Inhibitors for Carbon Steel Corrosion in Acidic Medium

2015 ◽  
Vol 18 (6) ◽  
pp. 1011-1024 ◽  
Author(s):  
Nabel A. Negm ◽  
Emad A. Badr ◽  
Khaled Zakaria ◽  
Mohamed Abd El-Raouf
Keyword(s):  
Fatty Acids ◽  
Carbon Steel ◽  
Acidic Medium ◽  
Nonionic Surfactants ◽  
Environmentally Friendly ◽  
Steel Corrosion ◽  
Jatropha Oil

Amide type nonionic surfactants: Synthesis and corrosion inhibition evaluation against carbon steel corrosion in acidic medium

2018 ◽  
Vol 256 ◽  
pp. 574-580 ◽  
Author(s):  
Nabel A. Negm ◽  
Maher A. El Hashash ◽  
Ali Abd-Elaal ◽  
Salah M. Tawfik ◽  
Ahmed Gharieb
Keyword(s):  
Carbon Steel ◽  
Corrosion Inhibition ◽  
Acidic Medium ◽  
Nonionic Surfactants ◽  
Steel Corrosion

Electrochemical and theoretical quantum approaches on the inhibition of C1018 carbon steel corrosion in acidic medium containing chloride using some newly synthesized phenolic Schiff bases compounds

2015 ◽  
Vol 743 ◽  
pp. 120-133 ◽  
Author(s):  
Hany M. Abd El-Lateef ◽  
Ahmed M. Abu-Dief ◽  
L.H. Abdel-Rahman ◽  
Eva Carolina Sañudo ◽  
Núria Aliaga-Alcalde
Keyword(s):  
Carbon Steel ◽  
Schiff Bases ◽  
Acidic Medium ◽  
Steel Corrosion

scholarly journals Epoxy pre-polymers as new and effective materials for corrosion inhibition of carbon steel in acidic medium: Computational and experimental studies

2021 ◽  
Author(s):  
Omar Dagdag ◽  
Zaki Safi ◽  
Rachid Hsissou ◽  
Hamid Erramli ◽  
Mehdi El Bouchti ◽  
...  
Keyword(s):  
Carbon Steel ◽  
Corrosion Inhibition ◽  
Acidic Medium ◽  
Density Functional ◽  
Experimental Studies ◽  
Steel Corrosion ◽  
Attenuated Total Reflection ◽  
Computational Techniques ◽  
Functional Theory ◽  
Different Temperatures

Present study is designed for the synthesis, characterization and corrosion inhibition behavior of two diamine aromatic epoxy pre-polymers (DAEPs) namely, N1,N1,N2,N2-tetrakis (oxiran-2-ylmethyl) benzene-1,2-diamine (DAEP1) and 4-methyl-N1,N1,N2,N2-tetrakis (oxiran-2-ylmethyl) benzene-1,2-diamine (DAEP2) for carbon steel corrosion in acidic medium. Synthesized DAEPs were characterized using spectral (Nuclear magnetic resonance (1H NMR) and Fourier transform infrared-attenuated total reflection (FTIR-ATR)) techniques. Viscosity studies carried out at four different temperatures (20–80 °C) increase in temperature causes significant reduction in their viscosities. The anticorrosive properties of DAEPs differing in the nature of substituents, for carbon steel corrosion in 1 M HCl solution was evaluated using several experimental and computational techniques. Both experimental and computational studies showed that inhibitor (DAEP2) that contains electron releasing methyl (-CH3) showed higher protectiveness as compared to the inhibitor (DAEP1) without substituent (-H). Electrochemical results demonstrate that DAEPs act as reasonably good inhibitors for carbon steel in 1 M HCl medium and their effectiveness followed the sequence: DAEP2 (92.9%) > DAEP1 (91.7%). The PDP results show that the diamine aromatic epoxy pre-polymers molecules (DAEPs) act as mixed type inhibitors. Electrochemical study was also supported using scanning electron microscopy (SEM) method were significant improvement in the surface morphology of inhibited (by DAEPs) metallic specimens was obtained. Results derived from computational density functional theory (DFT) and molecular dynamics (MD) simulationsand studies were consistent with the experimental results derived from SEM, EIS and PDP electrochemical studies. Adsorption of the DAEPs obeyed the Langmuir adsorption isotherm model.

Synthesis and Evaluation of Nonionic Surfactants Derived from Tannic Acid as Corrosion Inhibitors for Carbon Steel in Acidic Medium

2015 ◽  
Vol 18 (6) ◽  
pp. 989-1001 ◽  
Author(s):  
Nabel A. Negm ◽  
Sayed Abdelkader Ahmed ◽  
Emad A. Badr ◽  
Mona Abdel Ghani ◽  
Mohamed Abd El-Raouf
Keyword(s):  
Carbon Steel ◽  
Tannic Acid ◽  
Acidic Medium ◽  
Corrosion Inhibitors ◽  
Nonionic Surfactants

Effectiveness of some Nonionic Surfactants As Corrosion Inhibitors for Carbon Steel in Hydrochloric Acid Solution

2013 ◽  
Vol 787 ◽  
pp. 211-215 ◽  
Author(s):  
Omnia A.A. El-Shamy
Keyword(s):  
Surface Tension ◽  
Carbon Steel ◽  
Hydrochloric Acid ◽  
Critical Micelle Concentration ◽  
Corrosion Inhibitors ◽  
Nonionic Surfactants ◽  
Steel Corrosion ◽  
Surface Excess ◽  
Compound I ◽  
Minimum Surface Area

The corrosion inhibition characteristics of the synthesized (I, II and III) nonionic surfactants on carbon steel corrosion in 1 M acid chloride have been investigated at 30 oC by potensiodynamic polarization. The obtained results show that compound I has the best efficiency at concentration 0.08 mmol/L while compound III is the best inhibitor at higher concentrations. The surface parameters of each synthesized surfactant were calculated from its surface tension including the critical micelle concentration (CMC), effectiveness of surfactant (π), maximum surface excess (Γmax) and the minimum surface area (Amin).

A theoretical study of two novel Schiff bases as inhibitors of carbon steel corrosion in acidic medium

2019 ◽  
Vol 125 (2) ◽  
Author(s):  
Rahman Padash ◽  
Mehdi Rahimi-Nasrabadi ◽  
Ali Shokuhi Rad ◽  
Ali Sobhani-Nasab ◽  
Teofil Jesionowski ◽  
...  
Keyword(s):  
Carbon Steel ◽  
Schiff Bases ◽  
Acidic Medium ◽  
Theoretical Study ◽  
Steel Corrosion
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