Adsorption of 2-mercaptobenzothiazole on copper surface from phosphate solutions

Kazansky, Leonid P.; Selyaninov, I. A.; Kuznetsov, Yu. I.

doi:10.1016/j.apsusc.2012.03.097

Cited by 70 publications

(76 citation statements)

References 37 publications

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“…Two doublets of S2p electrons differing by 2.5 eV for MBT powder are shifted towards greater energies, especially the peak of the exo sulfur atom that shows its participation in interaction with the metal surface. Similar changes were observed when MBT was adsorbed on copper from phosphate solutions [29]. In the case of chloride solutions, traces of Cl ions can be observed as a weak peak of Сl2p electrons showing physical adsorption of chloride ions on the surface from which they are washed off upon an intense ultrasonic wash.…”

Section: Resultssupporting

confidence: 56%

“…The CuLMM peak of the Cu -MBT complex formed during exposure of a copper electrode in 0.1 mmol/l MBT solution is observed at Е CuLMM = 571.4 eV [13] that considerably differs from Cu 2 O and Cu(m), 570.0 eV and 568.0 eV, accordingly, and it is rather easy to distinguish their spectral pattern in the observed CuLMM spectra. This Е CuLMM value is close to Е CuLMM of CuSCN powder [29] in which sulfur and nitrogen atoms are ligand atoms to Cu(I). It should be noted that the Cu2p 3/2 peak of the Cu-BTA complex is observed at 933.1 eV, though if of Cu 2 O and Cu(m) are present simultaneously, it is obviously impossible to distinguish it.…”

Section: Resultsmentioning

confidence: 58%

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Electrochemical and XPS study of 2-merсaptobenzothiazole nanolayers on zinc and copper surface

Arkhipushkin¹,

Pronin²,

Vesely³

et al. 2014

Int. J. Corros. Scale Inhib.

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The electrochemical behavior of copper and zinc in neutral (рН 7.4) borate buffer solution with addition of 0.5 M NaCl and the effect of 2-merсaptobenzothiazole (MBT) on the electrochemical processes and adsorption on these metals has been studied by means of electrochemistry and X-ray photoelectron spectroscopy (XPS). The formation of MBTmetal cation complex films on copper and zinc surface has been shown. The effect of corrosive media composition and time-dependent relations of nanoscale film growth on the surface of the metals investigated have been determined. It was assumed that adsorbed MBT anion forms M(MBT) х , a polymeric complex where M = Cu + (x = 1) or Zn 2+ (x = 2).

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Section: Resultssupporting

confidence: 56%

Section: Resultsmentioning

confidence: 58%

Electrochemical and XPS study of 2-merсaptobenzothiazole nanolayers on zinc and copper surface

Arkhipushkin¹,

Pronin²,

Vesely³

et al. 2014

Int. J. Corros. Scale Inhib.

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“…It is considered that initially 2-MBT molecule is adsorbed in the metal surface through the exo-sulfur atom (Oshawa and Süetaka, 1979;Subramaninan and Lakshminarayanan, 2002;Kazansky et al, 2012;Ramenzanzadeh et al, 2014) this fact is possible because 2-MBT molecules exhibit the thiolthione tautomerism (Oshawa and Süetaka, 1979;Ramenzanzadeh et al, 2014), in the range of pH of 3 to 9 (Jing et al, 2013), which leads to an anionic form of 2-MBT (Winkler et al, 2014) (Fig. 8).…”

Section: Frequency Response Over Timementioning

confidence: 99%

“…Despite the fact that organic inhibitors have been extensively investigated in the last decades, their inhibition mechanism is usually unknown (Trabanelli and Carassiti, 1970;Chadwick and Hashemi, 1979;Zhang et al, 2007;Morales-Gil et al, 2014). It is generally accepted that inhibition is achieved by the formation of a protective film formed by adsorbed inhibitor molecules on the metal surface (Marconato et al, 1998;Subramaninan and Lakshminarayanan, 2002;Godínez et al, 2003;Solmaz et al, 2011;Kazansky et al, 2012), which acts as a barrier between the aggressive media and the metal surface.…”

Section: Introductionmentioning

confidence: 99%

Direct measurement of the adsorption kinetics of 2-Mercaptobenzothiazole on a microcrystalline copper surface

Tur¹,

Véleva²

2016

REVMETAL

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ABSTRACT:The adsorption on copper of 2-Mercaptobenzothiazole (2-MBT), a heterocyclic compound member of the tiazole family, has been investigated at different concentrations (1×10 −1 to 1×10 −6 M) in water, employing the Electrochemical Quartz Crystal Microbalance (EQCM). The frequency response over time was obtained for each concentration, showing a defined exponential behavior at higher concentrations (1×10 RESUMEN: Medición directa de la cinética de adsorción del 2-Mercaptobenzotiazol en una superficie micro cristalina de cobre.En el presente trabajo se ha investigado la adsorción del 2-Mercaptobenzotiazol (2-MBT) en cobre, un compuesto heterocíclico miembro de la familia de los tiazoles, en solución acuosa a diferentes concentraciones (1×10 −1 a 1×10 −6 M), empleando la Balanza Electroquímica de Cristal de Cuarzo (BECC). Se midió y analizó el cambio de frecuencia con respecto al tiempo para cada concentración, mostrando un comportamiento exponencial definido en el rango de concentraciones altas (1×10 −1 , 1×10 −2 y 1×10 −3 M), los cambios de frecuencia registrados se ajustaron usando la isoterma de adsorción de Langmuir obteniendo buenos coeficientes de correlación (R 2 =0,91 a 0,98). Se calculó también la fracción de superficie recubierta y se halló que se encuentra en el orden de 0,50 a 0,01 para las concentraciones altas de 2-MBT. La energía libre de adsorción calculada fue de ΔG ads =−5,59 kJ mol −1 , lo cual corresponde a un proceso de fisisorción.

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“…Even in [8][9][10] it was shown that on a surface of copper immersed in an acidic or neutral aqueous solution containing MBT, a thin film of complex Cu(I) -MBT = 1:1 is formed. Since phosphate solutions are suggested as media for chemical mechanical planarization of copper in manufacturing integrated circuits [11], the adsorption of MBT on copper surface from these solutions was studied in our lab [12]. It should be noted that according to [13], MBT is very efficient in suppressing the copper oxide formation covering almost completely a copper surface in 800 s. This property of MBT is very important, but it remained unclear whether MBT is capable of preventing the formation of Cu(II) phosphate.…”

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confidence: 99%

New possibilities of metal corrosion inhibition by organic heterocyclic compounds

Kuznetsov

Frumḳin²,

Federation³

2012

Int. J. Corros. Scale Inhib.

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It is shown that many heterocyclic organic compounds, e.g., various azoles, are capable of adsorption on metals with formation of strong bonds with the surface. The approach based on the linear free energy relationship (LFER) principle offers a description of the efficiency of corrosion inhibition by these compounds and provides an understanding of the nature of chemical bonds formed by an organic inhibitor with a metal that needs to be protected. Knowledge of the specifics of interaction between azoles and metal surfaces can be helpful in choosing a promising corrosion inhibitor for drastic conditions, for example, in chemical mechanical planarization slurries where simultaneous mechanical polishing and electrochemical dissolution of the surface usually occur. Corrosion inhibition of steel at high temperatures (≥ 150°C) in mineral acid solutions is yet another example of a new successful use of azoles. It is demonstrated that new possibilities for improving the anticorrosive protection of metals are provided not only by using mixtures of some azoles with carboxylate-type organic corrosion inhibitors but also by constructing bilayer nanocoatings from aqueous solutions. For example, strong adsorption of small amounts of rather an exotic compound, dimegin (disodium salt of deuteroporphyrin), not only promotes the passivation of iron in neutral aqueous solutions but also impedes the local depassivation of the metal. Furthermore, it offers wide possibilities for further improvement of adsorption of other heterocyclic chemical compounds due to preliminary modification of the metal surface even by a small dimegin concentration. Key words: corrosion inhibitors, linear free energy relationship, azoles, adsorption.Received: July 15, 2012July 15, . doi: 10.17675/2305July 15, -6894-2012 One of the most important groups of corrosion inhibitors (hereinafter inhibitors) includes heterocyclic compounds. The interest in these compounds has not abated for over half a century. Meanwhile, over the last decade, not only the specific features of the mechanism have been studied in more detail for known inhibitors of this type, but also the range of objects that can be protected has been expanded and new efficient inhibitors and protection

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Adsorption of 2-mercaptobenzothiazole on copper surface from phosphate solutions

Cited by 70 publications

References 37 publications

Electrochemical and XPS study of 2-merсaptobenzothiazole nanolayers on zinc and copper surface

Electrochemical and XPS study of 2-merсaptobenzothiazole nanolayers on zinc and copper surface

Direct measurement of the adsorption kinetics of 2-Mercaptobenzothiazole on a microcrystalline copper surface

New possibilities of metal corrosion inhibition by organic heterocyclic compounds

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