1,2-Diaminoanthraquinone as Corrosion Inhibitor for Mild Steel in Hydrochloric Acid: Weight Loss and Quantum Chemical Study

被引：0
作者：
Obi-Egbedi, N. O. [1 ]
Essien, K. E. [1 ]
Obot, I. B. [2 ]
Ebenso, E. E. [3 ]
机构：
[1] Univ Ibadan, Dept Chem, Ibadan, Nigeria
[2] Univ Uyo, Fac Sci, Dept Chem, Uyo, Akwa Ibom State, Nigeria
[3] North West Univ, Dept Chem, ZA-2735 Mmabatho, South Africa
来源：
INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE | 2011年 / 6卷 / 04期
关键词：
1,2-diaminoanthraquinone (DAQ); adsorption isotherm; Density Functional Theory (DFT); hydrochloric acid; mild steel; corrosion inhibition; COLD-ROLLED STEEL; ALUMINUM CORROSION; ADSORPTION CHARACTERISTICS; COPPER CORROSION; CARBON-STEEL; DERIVATIVES; NACL; DISSOLUTION; MEDIA; DFT;
D O I：
暂无
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
The corrosion inhibition and adsorption processes of 1,2-diaminoanthraquinone (DAQ) on mild steel in HCl was studied at different temperatures (303 - 333 K) by means of weight loss measurement and UV-visible spectrophotometric methods. The results indicate that the studied compound exhibits good performance as inhibitor for mild steel corrosion in 1 M HCl. The inhibition efficiency increases with decreasing temperature and increasing concentration of inhibitor. It has been determined that the adsorption of DAQ on mild steel obeys the Temkin adsorption isotherm at all studied temperatures with negative values of Delta G(ads)(o), suggesting a stable and a spontaneous inhibition process. Mechanism of physical adsorption is proposed from the values of E-a and Delta G(ads)(o) obtained. The UV-visible absorption spectra of the solution containing the inhibitor after the immersion of mild steel specimen indicate the formation of a DAQ-Fe complex. Quantum chemical approach was further used to calculate some electronic properties of the molecule in order to ascertain any correlation between the inhibitive effect and molecular structure of DAQ.
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页码：913 / 930
页数：18
相关论文
共 45 条
[1]   2,3-quinoxalinedione as a novel corrosion inhibitor for mild steel in 1 M HCl [J].
Abboud, Y. ;
Abourriche, A. ;
Saffaj, T. ;
Berrada, M. ;
Charrouf, M. ;
Bennamara, A. ;
Al Himidi, N. ;
Hannache, H. .
MATERIALS CHEMISTRY AND PHYSICS, 2007, 105 (01) :1-5
[2]   CORROSION INHIBITION OF CARBON STEEL IN ACIDIC MEDIA BY BIFURCARIA BIFURCATA EXTRACT [J].
Abboud, Y. ;
Abourriche, A. ;
Ainane, T. ;
Charrouf, M. ;
Bennamara, A. ;
Tanane, O. ;
Hammouti, B. .
CHEMICAL ENGINEERING COMMUNICATIONS, 2009, 196 (07) :788-800
[3]   Corrosion inhibition of aluminum by 1,1(lauryl amido)propyl ammonium chloride in HCl solution [J].
Abd El Rehim, SS ;
Hassan, HH ;
Amin, MA .
MATERIALS CHEMISTRY AND PHYSICS, 2001, 70 (01) :64-72
[4]   Mebendazole: New and efficient corrosion inhibitor for mild steel in acid medium [J].
Ahamad, Ishtiaque ;
Quraishi, M. A. .
CORROSION SCIENCE, 2010, 52 (02) :651-656
[5]  
[Anonymous], 2010, Der. Pharma. Chem
[6]   The inhibition of mild steel corrosion in hydrochloric acid media by two Schiff base compounds [J].
Behpour, M. ;
Ghoreishi, S. M. ;
Gandomi-Niasar, A. ;
Soltani, N. ;
Salavati-Niasari, M. .
JOURNAL OF MATERIALS SCIENCE, 2009, 44 (10) :2444-2453
[7]  
Bennamara A., 2009, DESALINATION, V237, P175
[8]   Thermodynamic characterization of metal dissolution and inhibitor adsorption processes in mild steel/2,5-bis(n-thienyl)-1,3,4-thiadiazoles/hydrochloric acid system [J].
Bentiss, F ;
Lebrini, M ;
Lagrenée, M .
CORROSION SCIENCE, 2005, 47 (12) :2915-2931
[9]   The effect of N-(1-toluidine) salicylaldimine on the corrosion of austenitic chromium-nickel steel [J].
Bilgiç, S ;
Çaliskan, N .
APPLIED SURFACE SCIENCE, 1999, 152 (1-2) :107-114
[10]  
Ebenso EE, 2008, INT J ELECTROCHEM SC, V3, P1325
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