Combined electronic/atomic level computational, surface (SEM/EDS), chemical and electrochemical studies of the mild steel surface by quinoxalines derivatives anti-corrosion properties in 1 mol·L<sup>-1</sup> HCl solution

F. Benhiba; Z. Benzekri; A. Guenbour; M. Tabyaoui; A. Bellaouchou; S. Boukhris; H. Oudda; I. Warad; A. Zarrouk

Your Location：

Home >

Browse articles >

Combined electronic/atomic level computational, surface (SEM/EDS), chemical and electrochemical studies of the mild steel surface by quinoxalines derivatives anti-corrosion properties in 1 mol·L^-1 HCl solution

Materials and Product Engineering | Updated：2026-01-06

- Combined electronic/atomic level computational, surface (SEM/EDS), chemical and electrochemical studies of the mild steel surface by quinoxalines derivatives anti-corrosion properties in 1 mol·L^-1 HCl solution
- Chinese Journal of Chemical Engineering Vol. 28, Issue 5, Pages: 1436-1458(2020)
- Affiliations：
  
  1. Laboratory of Separation Processes, Faculty of Sciences, Ibn Tofail University, P. O. Box 133, 14000, Kenitra,Morocco
  2. Laboratory of Materials, Nanotechnology and Environment, Faculty of Sciences, Mohammed V University, Av. Ibn Battouta, P. O. Box 1014, Agdal,Rabat,Morocco
  3. Laboratory of Organic Synthesis, Organometallic and Theoretical, Faculty of Sciences, Ibn Tofail University, P. O. Box 133, 14000, Kenitra,Morocco
  4. Department of Chemistry and Earth Sciences, P. O. Box 2713, Qatar University, Doha,Qatar
- Author bio：
- Funds：
- DOI：
  CLC：
- Published：2020
- Accepted：
Scan QR Code
HCl solution[J]. 中国化学工程学报, 2020, 28(5): 1436-1458.
DOI：

HCl solution[J]. 中国化学工程学报, 2020, 28(5): 1436-1458. DOI：

摘要

Abstract

This work is devoted to the study of the inhibition of corrosion of mild steel (MS) in molar hydrochloric acid (1 mol·L

-1

HCl) by two named quinoxaline derivatives namely

2-(2

4-dichlorophenyl)-1

4-dihydroquinoxaline (

) and 2-(2

4-dichlorophenyl)-6-methyl-1

4-dihydroquinoxaline (

). The inhibitory efficacy of

and

compounds is first evaluated using the gravimetric method and using electrochemical techniques (stationary and transient techniques). The results showed that our compounds are efficient corrosion inhibitors and the inhibition rates (

EIS

%) reached up to 91% and 94.2% at 10

-3

mol·L

-1

for

and

respectively. The mentioned molecules are classified as mixed-type inhibitors. The adsorption of these inhibitors on the surface of steel in hydrochloric HCl 1 mol·L

-1

medium obeys the Langmuir adsorption isotherm. The results of the scanning electron microscope (SEM) showed the formation of a protective film on the surface of the steel in the presence of the

inhibitors studied. Elementary analysis is obtained by energy dispersive X-ray spectroscopy (EDS). The inhibition property was further elucidated by theoretical approaches such as:Density Functional Theory (

DFT

)

quantum chemical descriptors (

QCD

)

local reactive indices

solvent effect

theoretical complexation

Molecular Dynamic (

) simulation

effect of temperature on adsorption energy (

ads

)

Radial Distribution Function (

RDF

)

and Mean Square Displacement (

MSD

). The results of these approaches support the experimental results.

关键词

Keywords

references

Views

Downloads

CSCD

Alert me when the article has been cited

Submit

Tools

Publicity Resources

Effect of pore size on CH4/N2 separation using activated carbon

Eco-friendly corrosion inhibitor from Pennisetum purpureum biomass and synergistic intensifiers for mild steel

Synthesis of chemiluminescent carbonized polymer dots under atmospheric conditions for multimode luminescence anti-counterfeiting

Unraveling the methane decomposition mechanism on Fe-Ni-Ca-O composite catalysts: A combined density functional theory and microdynamic study

Biochar as a structure-tunable stationary phase for column chromatographic fractionation of bio-oil

Related Author

Gaofei Chen

Yaxiong An

Yuanhui Shen

Yayan Wang

Zhongli Tang

Bo Lu

Donghui Zhang

Ekemini Ituen

Related Institution

Key Laboratory of Cryogenics, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences

The Research Center of Chemical Engineering, School of Chemical Engineering and Technology, Tianjin University

State Key Laboratory of Coal and CBM Co-mining

Materials Physics and Chemistry Research Laboratory, College of Science, China University of Petroleum

African Centre of Excellence in Oilfield Chemicals Research, Institute of Petroleum Studies, University of Port Harcourt

⁰

Combined electronic/atomic level computational, surface (SEM/EDS), chemical and electrochemical studies of the mild steel surface by quinoxalines derivatives anti-corrosion properties in 1 mol·L-1 HCl solution

DOI：

摘要

Abstract

关键词

Keywords

references

Combined electronic/atomic level computational, surface (SEM/EDS), chemical and electrochemical studies of the mild steel surface by quinoxalines derivatives anti-corrosion properties in 1 mol·L^-1 HCl solution