Investigation of the inhibitive effect of ortho-substituted anilines on corrosion of iron in 1 M HCl solutions

被引:252
作者
Khaled, KF [1 ]
Hackerman, N [1 ]
机构
[1] Rice Univ, Dept Chem, Houston, TX 77005 USA
关键词
iron; polarization; EIS; acid inhibition;
D O I
10.1016/S0013-4686(03)00318-9
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
081704 ;
摘要
The inhibitory activity of some o-substituted anilines on iron corrosion in hydrochloric acid (HCl) was studied in relation to inhibitor concentration using potentiodynamic and electrochemical impedance spectroscopy (EIS) measurements. O-substituted anilines were found to act as mixed type inhibitors. The results showed that o-substituted anilines suppressed both cathodic and anodic processes of iron corrosion in 1 M HCl by its adsorption on the iron surface according to Langmuir adsorption isotherm. Potentiodynamic and EIS measurements reveal that these compounds inhibit the iron corrosion in 1 M HCl and that the efficiency increases with increasing of the inhibitor concentration. Data obtained from EIS are analyzed to model the corrosion inhibition process through equivalent circuit. (C) 2003 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:2715 / 2723
页数:9
相关论文
共 25 条
  • [1] The inhibition of 4-(2′-amino-5′-methylphenylazo) antipyrine on corrosion of mild steel in HCl solution
    Abd El Rehim, SS
    Ibrahim, MAM
    Khalid, KF
    [J]. MATERIALS CHEMISTRY AND PHYSICS, 2001, 70 (03) : 268 - 273
  • [2] Abd El-Rehim SSA, 1999, J APPL ELECTROCHEM, V29, P593
  • [3] ABDELREHIM SS, 1999, CORROS PREVENT CONTR, V46, P157
  • [4] The isoxazolidines: a new class of corrosion inhibitors of mild steel in acidic medium
    Ali, SA
    Saeed, MT
    Rahman, SU
    [J]. CORROSION SCIENCE, 2003, 45 (02) : 253 - 266
  • [5] A simple one step synthesis of new 3,5-disubstituted-4-amino-1,2,4-triazoles
    Bentiss, F
    Lagrenée, M
    Traisnel, M
    Mernari, B
    Elattari, H
    [J]. JOURNAL OF HETEROCYCLIC CHEMISTRY, 1999, 36 (01) : 149 - 152
  • [6] The corrosion inhibition of mild steel in acidic media by a new triazole derivative
    Bentiss, F
    Lagrenee, M
    Traisnel, M
    Hornez, JC
    [J]. CORROSION SCIENCE, 1999, 41 (04) : 789 - 803
  • [7] THE MECHANISM OF CORROSION INHIBITION OF IRON IN ACID-SOLUTION BY ACETYLENIC ALCOHOLS
    BOCKRIS, JO
    BO, Y
    [J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1991, 138 (08) : 2237 - 2252
  • [8] THEORY OF ORGANIC CORROSION INHIBITORS .3. LFER CORRELATION OF INHIBITION OF ARMCO IRON BY RING-SUBSTITUTED ANILINES
    DONAHUE, FM
    NOBE, K
    [J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1967, 114 (10) : 1012 - &
  • [9] Development of a structure-activity relationship for oil field corrosion inhibitors
    Durnie, W
    De Marco, R
    Jefferson, A
    Kinsella, B
    [J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1999, 146 (05) : 1751 - 1756
  • [10] The inhibition action of 3,6-bis(2-methoxyphenyl)-1,2-dihydro-1,2,4,5-tetrazine on the corrosion of mild steel in acidic media
    Elkadi, L
    Mernari, B
    Traisnel, M
    Bentiss, F
    Lagrenée, M
    [J]. CORROSION SCIENCE, 2000, 42 (04) : 703 - 719