Insights into surface-adsorbate interactions in corrosion inhibition processes at the molecular level

Date

2014-03-01

Author

ÖZCAN, MUZAFFER
Toffoli, Daniele
Toffoli, Hande
DEHRİ, İLYAS

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

119
views

0
downloads

2-((3-Methylpyridine-2-imino)methyl)phenol (MPIMP) was investigated as a potential corrosion inhibitor for mild steel in 0.5 M HCI solution using impedance spectroscopy (IS). Changes in impedance parameters indicated that adsorption of MPIMP occurred on the mild steel surface. Three stable adsorption configurations for MPIMP on the Fe(11 0) surface were identified as a result of geometry optimization starting from several adsorption geometries using density functional theory (DFT). Involvement of the delocalized pi-electrons of the aromatic rings in the interaction provides extra stabilization to the flat adsorption configurations.

Subject Keywords

EIS, Modeling studies, Acid corrosion, Acid inhibition

URI

https://hdl.handle.net/11511/48427

Journal

CORROSION SCIENCE

DOI

https://doi.org/10.1016/j.corsci.2013.11.062

Collections

Department of Physics, Article

Suggestions

OpenMETU
Core

Observation of Oscillatory Surface Reactions of Riboflavin, Trolox, and Singlet Oxygen Using Single Carbon Nanotube Fluorescence Spectroscopy Sen, Fatih; Boghossian, Ardemis A.; Sen, Selda; Ulissi, Zachary W.; Zhang, Jingqing; Strano, Michael S. (2012-12-01) Single-molecule fluorescent microscopy allows semiconducting single-walled carbon nanotubes (SWCNTs) to detect the adsorption and desorption of single adsorbate molecules as a stochastic modulation of emission intensity. In this study, we identify and assign the signature of the complex decomposition and reaction pathways of riboflavin in the presence of the free radical scavenger Trolox using DNA-wrapped SWCNT sensors dispersed onto an aminopropyltriethoxysilane (APTES) coated surface. SWCNT emission is qu...
Effect of carboxylic acid crosslinking of cellulose membranes on nanofiltration performance in ethanol and dimethylsulfoxide Konca, Kubra; Çulfaz Emecen, Pınar Zeynep (2019-10-01) Cellulose membranes were fabricated via phase inversion using 1-ethyl-3-methylimidazolium acetate as solvent and acetone as volatile cosolvent. 1,2,3,4-butanetetracarboxylic acid was used to partially crosslink the hydroxyl groups of cellulose, thereby changing mechanical properties of the membranes and the interactions with solvents, ethanol and dimethyl sulfoxide, and solutes. Rejection of dyes of similar size, Bromothymol Blue, Rose Bengal and Crystal Violet were shown to correlate inversely with sorptio...
A density functional theory study of oxidation of benzene to phenol by N2O on Fe- and Co-ZSM-5 clusters Fellah, Mehmet Ferdi; Önal, Işık (2009-06-01) Density functional theory (DFT) calculations were carried out in the study of oxidation of benzene to phenol by N2O on relaxed [(SiH3)(4)AlO4M] (where M=Fe, Co) cluster models representing Fe- and Co-ZSM-5 surfaces. The catalytic cycle steps are completed for both Fe-ZSM-5 and Co-ZSM-5 clusters. The general trend of the results that were obtained in terms of activation barriers for the Fe-ZSM-5 cluster is in agreement with the experimental and theoretical literature. It was observed that the phenol formatio...
A comparative study of electrocoagulation and coagulation of aqueous suspensions of kaolinite powders Kilic, Mehtap Guelsuen; Hoşten, Çetin (2010-04-15) Removal of kaolinite particles from their synthetically prepared suspensions was studied by electrocoagulation and coagulation to investigate the effect of such operating parameters as initial pH, coagulant dosage, applied voltage, current density, and time. Coagulation was more effective in a wider pH range (pH 5-8) than electrocoagulation which yielded optimum effectiveness in a relatively narrower pH range around 9, where, in both methods, these pH values corresponded to near-zero zeta potentials of kaol...
Investigation of polymerization of benzoxazines and thermal degradation characteristics of polybenzoxazines via direct pyrolysis mass spectrometry Fam, Shahla Bagheri; Uyar, Tamer; Ishida, Hatsuo; Hacaloğlu, Jale (2012-10-01) Polymerization of benzoxazines and thermal degradation mechanisms of polybenzoxazines were investigated using the direct pyrolysis mass spectrometry (DP-MS) technique. The benzoxazine structures were based on phenol and aniline and on bisphenol-A and methylamine or aniline. Polymerizations of the benzoxazines were carried out by curing them at elevated temperatures without addition of initiator or catalyst. DP-MS data showed the presence of chains generated by opposing polymerization reaction pathways indic...

Citation Formats

M. ÖZCAN, D. Toffoli, H. Toffoli, and İ. DEHRİ, “Insights into surface-adsorbate interactions in corrosion inhibition processes at the molecular level,” CORROSION SCIENCE, pp. 482–486, 2014, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/48427.