欢迎登录材料期刊网

材料期刊网

高级检索

用动电位极化法、电化学阻抗谱(EIS)和失重法研究了3-氨基-5-巯基-1,2,4-三唑(3-AMT)在除盐水中对Cu腐蚀行为的影响和吸附规律。研究表明,缓蚀效率随着缓蚀剂3-AMT浓度的上升而增大,当其浓度大于4× 10-5 mol/L时,对Cu具有较好的缓蚀性能,3-AMT是一种混合型缓蚀剂。吸附过程为放热过程,属化学吸附,服从Langmuir吸附等温式。

The corrosion behavior of copper in the presence of 3-amino-5-mer capto-1,2,4-triazole (3-AMT) has been investigated in deionized water. Potentiodynamic polarization, electrochemical impedance spectroscopy (EIS) and weight-loss measurement were applied to analyze the effect of the organic compounds on the corrosion inhibition of copper. Results showed that the inhibition efficiency increased with increasing the inhibitor concentration and the compound acted at anodic-type inhibitor. The adsorption of 3-AMT has been found to occur on the surface of copper according to the Langmuir isotherm. 3-AMT is chemically adsorbed on the copper surface.

参考文献

[1]
[2]
[3] Park B G, Hwang I H, Rhee I S. Effect of the electrochemical corrosion potential of copper on plugging of generator water-cooling circuits [J]. Corrosion.2005, 61(6): 559-570
[2] Larabi L, Benali O, Mekelleche S M. 2-Mercapto-1-methylimidazole as corrosion inhibitor for copper in hydrochloric acid [J]. Appl. Surf. Sci, 2006, 253(3):1371-1378
[3] Sherif E M, Su-Moon Park. 2-Amino-5-ethyl-1,3,4-thiadiazole as a corrosion inhibitor for copper in 30% NaCl solutions [J]. Corros. Sci, 2006, 48(12):4065-4079
[4] Szocs E, Vastag Gy, Shaban A. Electrochemical behaviour of an inhibition film formed on copper surface [J]. Corros.Sci, 2005, 47(4 ):893-908
[5] Huynh N, Bottle S E, Notoya, et al. Effect of adsorption of some azoles on copper passivation in alkaline medium [J]. Corros. Sci, 2002, 44(3):535-554
[6] El-Sayed, Sherif M. Effects of 2-amino-5-(ethylthio)-1,3,4-thiadiazole on copper corrosion as a corrosion as a corrosion inhibitor in 3% NaCl solutions [J]. Appl.Surf. Sci, 2006, 252(8):8615-8623
[7] Shahrabi T, Hossein Tavakholi. Corrosion inhibition of copper in sulphuric acid by some nitrogen heterocyclic compounds [J]. Anti-Corros. Methods Mater, 2007, 54(5):308-313
[8] Yu P, Liao D M, Luo Y B. Studies of benzotriazole and tolytriazole as inhibitors for copper corrosion in deionized water [J]. Corrosion, 2003, 59(4):314-318
[9] Zucchi F, Trabanelli G, Fonsati M. Tetrazole derivatives as corrosion inhibitor for copper in chloride solutions [J]. Corros. Sci, 1996, 38(11):2019-2029
[10] Lalitha A, Ramesh S,Rajesware S. Surface protection of copper in acid medium by azoles and surfactants [J]. Electrochim. Acta, 2005, 51(1):47-55
[11] Aramaki K, Kiuchi T, Sumiyoshi T. Surface enhanced Raman scattering and impedance studies on the inhibition of copper corrosion in sulphate solutions by 5-substituted benzotriazoles [J]. Corros. Sci, 1991, 32(5-6):593-607
[12] Hamdy, Hassan H. Participation of the dissolved O2 in the passive layer formation on Zn surface in neutral media [J]. Electrochim. Acta, 2007, 53(4):1722-1730
[13] Shams A M, Mohammed R A, Haggag H H. Corrosion inhibition by molybdate/polymaliate mixtures [J]. Desalination, 1997, 114(1):85-95
[14] Abd Ei-Maksoud S A, Hassan H H. Electrochemical studies on the effect of (2E)-3-amino-2-phenylazo-but-2-enenitrile and its derivative on the behavior of copper in nitric acid [J]. Mater. Corros, 2007, 58(5):369-375
[15] Wang H L, Liu R B, Xin J. Inhibition effects of some mercapto-triazole derivatives on the corrosion of mild steel in 10 M HCl medium [J]. Corros. Sci, 2004, 46(10):2455-2466
[16] Khaled M, Ismail. Evaluation of cysteine as environmentally friendly corrosion inhibitor for copper in neutral and acidic chloride solutions [J]. Electrochim. Acta, 2007, 52(28):7811-7819
[17] Ramesh S, Rajeswari S, Maruthamuthu S. Corrosion inhibition of copper by new trizaole phosphonate derivatives [J]. Appl. Surf. Sci, 2004, 229(2):214-225
[18] Telegdi J, Rigo T, Kalman E. Nanolayer barriers for inhibition of copper corrosion [J]. Corros. Eng. Sci. Technol, 2004, 39(1):65-74
[19] Solmaz R, Karda G. Adsorption and corrosion inhibitive properties of 2-amino-5-mercapto-1,3,4-thiadiazole on mild steel in hydrochloric acid media [J]. Colloids Surf, 2008, 312 (1):7-17
[20] Chen Y, Hong T, Gopal M, et al. EIS studies of a corrosion inhibitor behavior under multiphase flow conditions [J]. Corros. Sci, 2000, 42(7):979-990
[21] Ramesh S, Rajeswari S. Corrosion inhibition of mild steel in neutral aqueous solution by new triazole derivatves[J]. Electrochim. Acta, 2004, 49(5):811-820
[22] Achouri M El,Kertit S, Gouttaya H M, et al. Corrosion inhibition of iron in 1M HCl by some Gemini surfactants in the series of alkanedily-&alpha
上一张 下一张
上一张 下一张
计量
  • 下载量()
  • 访问量()
文章评分
  • 您的评分:
  • 1
    0%
  • 2
    0%
  • 3
    0%
  • 4
    0%
  • 5
    0%