Corrosion Inhibition of Mild Steel by Safflower (Carthamus tinctorius) Extract: Polarization, EIS, AFM, SEM, EDS, and Artificial Neural Network Modeling

被引：13

作者：

Nasibi, Mahdi ^{[1
,2
]}

Rafiee, Elyas ^{[1
]}

Rashed, Gholamreza ^{[1
]}

Ashassi-Sorkhabi, Habib ^{[3
]}

Behpour, Mohsen ^{[4
]}

机构：

[1] NIORDC, Hlth & Safety Engn HSE Off, Yazd Zone, Yazd, Iran

[2] Petr Univ Technol, Tech Inspect Engn Dept, Abadan 6318714331, Iran

[3] Fac Chem, Dept Phys Chem, Electrochem Res Lab, Tabriz, Iran

[4] Univ Kashan, Fac Chem, Dept Analyt Chem, Kashan, Iran

来源：

JOURNAL OF DISPERSION SCIENCE AND TECHNOLOGY | 2013年 / 34卷 / 07期

关键词：

Acid inhibition; AFM; electrochemical calculation; mild steel; modeling studies; SEM; M HCL SOLUTION; HYDROCHLORIC-ACID; CARBON-STEEL; PITTING CORROSION; AQUEOUS EXTRACT; PLANT-EXTRACT; ADSORPTION; BEHAVIOR; NICKEL; LEAVES;

D O I：

10.1080/01932691.2012.704743

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Inhibitory action of safflower (Carthamus tinctorius) extract (SE) was investigated in hydrochloric acid solution through electrochemical (polarization, EIS), and surface analysis (optical microscopy/atomic force microscopy (AFM)/scanning electron microscopy (SEM)/energy dispersive spectroscopy (EDS)) techniques. In addition, Inhibition efficiency was predicted by neural network (NN) modeling in elevated temperatures and different acid concentrations. The thermodynamic adsorption parameters propose that this inhibitor retard both cathodic and anodic processes through physical adsorption and blocking the active corrosion sites. Surface analysis techniques confirm the inhibitor adsorption on the metal surface, which is in accordance with the variation of apparent activation energy of corrosion. Finally, inhibition efficiency is discussed in terms of protective film formation.

引用

页码：964 / 973

页数：10