A study of the electrochemical formation of Cu(I)-BTA films on copper electrodes and the mechanism of copper corrosion inhibition in aqueous chloride/benzotriazole solutions

Модестов, А. Д.; Zhou, Guanyu; Wu, Yun; Notoya, Takenori; Schweinsberg, D.P.

doi:10.1016/0010-938x(94)90028-0

Cited by 87 publications

(58 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…These extremely low currents indicate a 100% protection of copper. The polarization curve of copper treated with Azole (1) (benzotriazole) differs clearly from those obtained in the presence of Azole (2) and Azole (3). Although the treated copper could, to some extent, resist the 10 À3 mol L À1 sulfide solution, the passive current obtained under this condition is $10 À5 A which is fairly high compared to the one obtained in the presence of the other two inhibitors (>10 À9 A).…”

Section: Methodsmentioning

confidence: 70%

“…This low steady current indicates that Azole (1) could resist acceptably the low concentrations of sulfide ions. Figure 6(a) and (b) represents the surface of copper subjected to vacuum pyrolysis at 200 C in the presence of Azoles (2) and (3). Images show that copper surface is covered with a black layer of the inhibitor.…”

Section: Electrochemical Tests Of Copper After Pyrolysismentioning

confidence: 99%

“…[1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16] The remarkable inhibiting efficiency of BTAH is attributed to the formation of a protective film of Cu(I)BTA on the copper surface. [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16] However, benzotriazole loses its inhibition efficiency in environments polluted with sulfide ions. An example of these environments is the formation waters in sour oil and gas wells.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Novel Technique for the Application of Azole Corrosion Inhibitors on Copper Surface

et al. 2010

View full text Add to dashboard Cite

A new method was proposed for the application of azole corrosion inhibitors on the surface of copper. This method depends on the vacuum pyrolysis of the inhibitor in the presence of copper specimens. Three azole inhibitors namely; benzotriazole (Azole (1) (2)) and N-[Benzotriazol-1-yl-(4-methoxy-phenyl)-methylene]-N-phenyl-hydrazine (Azole (3)) were tested. After pyrolysis copper samples were electrochemically tested in sulfide polluted salt water and compared to the behavior of copper tested in the sulfide polluted salt water containing dissolved benzotriazole. Results showed that copper specimens treated in the presence of Azoles (2) and (3) exhibit excellent corrosion resistance. Those samples could resist the poisoning effect of sulfide ions. Azole (1) shows good resistance at low sulfide concentration and failed at the high concentration. Surface investigation support the results of electrochemical tests.

show abstract

Section: Methodsmentioning

confidence: 70%

Section: Electrochemical Tests Of Copper After Pyrolysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Novel Technique for the Application of Azole Corrosion Inhibitors on Copper Surface

et al. 2010

View full text Add to dashboard Cite

show abstract

“…This is in agreement with the conclusion obtained from the investigation on the interface reactions of other azoles with copper surface. [31] It has been reported that the formation of the Cu(I)BTA film was strongly dependent on the surface state of copper. [28] The cuprous oxide was essential for the protection of the Cu(I)BTA film for copper.…”

Section: Xps and Aes Analysis Of The Antitarnish Filmmentioning

confidence: 99%

Investigation of molybdate–benzotriazole surface treatment against copper tarnishing

Zhang

Joo

Lee

2008

Surface & Interface Analysis

View full text Add to dashboard Cite

The synergistic effect of benzotriazole (BTAH) and molybdate on the inhibition of copper tarnish was studied in this paper. The antitarnish treatment of copper was conducted with BTAH solution containing molybdate. The surface morphology observation and composition analysis were investigated by SEM with energy dispersive X-ray (EDX) spectroscopy. The addition of molybdate improved the protection of BTAH significantly. The BTAH + molybdate treated copper specimen has higher N concentration in its surface. The structure of the protective film was studied by XPS and AES measurements. It was characterized to be a complex of Cu(I)BTA. The antitarnish effect is certified by the formation of the protective Cu(I)BTA film. Molybdate does not participate in the formation of the protective film. The presence of molybdate promotes the passivation of copper. This facilitates the stabilization of the cuprous oxide film, and strengthens the adsorption of BTAH.

show abstract

“…Many heterocyclic compounds containing the mercapto group have also been developed as copper corrosion inhibitors for different industrial applications, such as 2-mercapto-benzothiazole (MBT) [16] and 2,4-dimercaptopyrimidine [17]. A number of investigations have been conducted on the electrodissolution of copper in acid media in the presence of benzotriazole [18][19][20][21][22][23].…”

Section: Introductionmentioning

confidence: 99%

Electrochemical studies on the effect of (2E)‐3‐amino‐2‐phenylazo‐but‐2‐enenitrile and its derivative on the behaviour of copper in nitric acid

El‐Maksoud¹,

Hassan

2007

Materials & Corrosion

View full text Add to dashboard Cite

The objective of this work is to provide additional insight on the influence of (2E)-3-amino-2-phenylazo-but-2-enenitrile and its derivative as corrosion inhibitors for copper in 0.5 M HNO 3 . Electrochemical techniques (potentiodynamic polarization, polarization resistance and impedance spectroscopy) as well as weight loss measurements have been employed to study the corrosion inhibition. The investigated compounds have shown inhibition efficiency in 0.5 M HNO 3 . Inhibition efficiency of these compounds has been found to vary with the concentrations of the compounds. The adsorption of these compounds on the copper surface from the acid solution has been found to obey Langmuir adsorption isotherm. The results revealed that the compounds are mixed type inhibitors. The effect of temperature on the inhibition efficiency was studied.

show abstract

A study of the electrochemical formation of Cu(I)-BTA films on copper electrodes and the mechanism of copper corrosion inhibition in aqueous chloride/benzotriazole solutions

Cited by 87 publications

References 18 publications

Novel Technique for the Application of Azole Corrosion Inhibitors on Copper Surface

Novel Technique for the Application of Azole Corrosion Inhibitors on Copper Surface

Investigation of molybdate–benzotriazole surface treatment against copper tarnishing

Electrochemical studies on the effect of (2E)‐3‐amino‐2‐phenylazo‐but‐2‐enenitrile and its derivative on the behaviour of copper in nitric acid

Contact Info

Product

Resources

About