Kinetics of corrosion inhibition of benzotriazole to copper in 3.5% NaCl

Bayoumi, Fathy M.; Abdullah, Aboubakr M.; Attia, B.

doi:10.1002/maco.200804104

Cited by 19 publications

(12 citation statements)

References 51 publications

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“…The electrochemical quartz crystal microbalance ͑EQCM͒ technique has been employed to study the kinetics of forming multilayers of BTA over time scales of the order of hours. 40,41 Unfortunately, the resolvable time scale of the EQCM, about 0.1 s, 42 limits the usefulness of this technique for studying the millisecond time scale. Hence, we employed a theoretical approach using our experimental chronoamperometric data to determine the rates of dissolution of copper from bare copper sites and from the sites that are occupied by BTA and then used these data to calculate the kinetics of adsorption of BTA onto copper.…”

Section: Theoretical Analysismentioning

confidence: 99%

Copper CMP Modeling: Millisecond Scale Adsorption Kinetics of BTA in Glycine-Containing Solutions at pH 4

Choi¹,

Tripathi²,

Dornfeld³

et al. 2010

J. Electrochem. Soc.

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Millisecond scale benzotriazole (BTA) adsorption kinetics in acidic aqueous solution containing 0.01M glycine and 0.01M BTA have been investigated. Chronoamperometry was used to measure current densities on the surface of a micro-copper electrode in pH 4 aqueous solutions containing 0.01M glycine with or without 0.01M BTA. In the presence of BTA the current density decreased as the inverse of the square root of time for a few seconds due to adsorption of BTA. At potentials above 0.4V saturated calomel electrode the current leveled off after a second or so due to the formation of a Cu(I)BTA monolayer on the copper surface. Based on these data a governing equation was constructed and solved to determine the initial kinetics of BTA adsorption. Analysis shows that material removal during copper chemical mechanical planarization (CMP) in this slurry chemistry occurs mostly by direct dissolution of copper species into the aqueous solution rather than mechanical removal of oxidized or pure copper species and that each interaction between a pad asperity and a given site on the copper removes only a small fraction of the Cu(I)BTA species present at that site.

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Section: Theoretical Analysismentioning

confidence: 99%

Copper CMP Modeling: Millisecond Scale Adsorption Kinetics of BTA in Glycine-Containing Solutions at pH 4

Choi¹,

Tripathi²,

Dornfeld³

et al. 2010

J. Electrochem. Soc.

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“…Copper corrosion inhibition is the system that is studied most often [37][38][39][40][41][42]. G. Trabanelli et al [37], who studied the corrosion inhibition of copper by various heterocyclic compounds (BTA, 2,4-dimercapto-pyrimidine, 5-mercapto-1-phenyltetrazole, 1H-1,2,3-triazolo [4,5-b]pyridine) in 0.1 M NaCl concluded that "EQCM technique has a valuable part to play in the interpretation of corrosion and corrosion inhibition mechanisms".…”

Section: Adsorption Of Organic Cis On Metals From Neutral Aqueous Solmentioning

confidence: 99%

Organic corrosion inhibitors: where are we now? Part I. Adsorption

Kuznetsov

Frumḳin²,

Federation³

et al. 2015

Int. J. Corros. Scale Inhib.

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A survey of studies on the adsorption of organic corrosion inhibitors (CIs) on metals from acid and neutral solutions for the period 2005-2015 is presented. It is noted that in order to estimate the adsorption of CI in corrosive acid solutions, the electrochemical impedance spectroscopy method (EIS) remains the most valuable. However, even the use of EIS for building CI adsorption isotherms is an approximation, which demands selecting the optimum conditions to reduce errors (control electrode potential, minimizing the rate of electrode dissolution, etc.). Besides, the conclusions about the state of the adsorption system and mechanism of adsorption of chemical substances can be made, at least, based on results of determining both the adsorption energy and the adsorption process kinetics. Addition of such a study to measure the aftereffect and XPS studies of the protective film formed on the metal by a CI provides valuable information about the nature of its adsorption.In reviewing studies of CI adsorption in neutral aqueous solutions, much attention is paid to the in situ ellipsometry method. It is noted that the best conditions for such investigations may be produced on the surfaces of electrodes at potentials corresponding to the absence of intense cathodic hydrogen evolution or anodic dissolution of the metal. Examples of CI adsorption measurements by other in situ methods (EIS and electrochemical quartz microbalance, EQMB), the results of which are consistent with those of ellipsometry, are discussed. Results of successful application of ellipsometry in combination with the XPS studies of protective layers on various metals in the study of not only individual CIs but also mixtures thereof are provided. Ellipsometric studies have played an important role in the discovery of a new possibility of using CIs, which consists in successive formation of adsorption layers of different CIs on a metal (layer-by-layer coating).

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“…[54 " 56] It has been recently reported to be an effective corrosion inhibitor for iron [57 ' 58] and aluminum alloys.…”

Section: 5 Corrosion Preventionmentioning

confidence: 99%

Corrosion des composites à matrice metallique du type Al-B4C dans les solutions aqueuses /

Yumei¹

2012

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Dedicated to the memory of my grandpa RÉSUMÉAu cours des dernières années, les composites à matrice métallique (CMM) du type AI-B4C ont reçu une attention considérable en raison de leur légèreté, de leur conductivité thermique supérieure, de leur grande rigidité et de leur dureté. Grâce à la capacité particulière de l'isotope B 10 à agir comme capteurs des neutrons, les composites AI-B4C ont été utilisés par l'industrie nucléaire à titre de matériaux absorbeurs de neutrons pour la fabrication de la section interne de contenants de transport et de stockage des combustibles nucléaires périmés.Bien que l'incorporation de particules céramiques dans la matrice d'aluminium permet d'améliorer les propriétés physiques et mécaniques de l'alliage de base, elle peut également modifier son comportement en corrosion. En outre, en tant que matériau absorbeur de neutrons utilisé dans les contenants de transport et de stockage pour les combustibles nucléaires usés, en particulier pour les applications de stockage humide, les composites A1-B 4 C sont continuellement en contact avec l'eau du bassin du réacteur (l'un d'eux contenant de l'acide borique avec une concentration de B -2500 ppm), un milieu généralement considéré comme étant légèrement corrosif. Ainsi, pour des raisons de sécurité évidentes, il devient très important de comprendre leur comportement en corrosion dans un milieu d'acide borique.Cependant, à ce jour, force est de constater que très peu d'études ont été consacrées à la détermination de la tenue en corrosion des composites AI-B4C, et ce en particulier dans l'acide borique, contrairement au nombre considérable de travaux de recherche dédiés à la corrosion des composites Al-SiC et AI-AI2O3 dans divers environnements. Parmi la littérature traitant des phénomènes de corrosion, les solutions 3.5% NaCl et 0.5 M K2SO4 sont celles les plus couramment utilisées pour l'étude du comportement en corrosion des matériaux composites à matrice métallique. Par conséquent, la présente recherche a visé l'étude du comportement en corrosion des composites CMM du type AI-B4C dans trois solutions, soit H3BO3 contenant 2500 ppm B, 3.5% NaCl et 0.5 M K 2 SO 4 .Parmi les solutions considérées, celle de NaCl a été identifiée comme étant celle induisant le plus de dommages au composite AI-B4C suivie, dans l'ordre, des solutions de K2SO4 et de H3BO3. Aucune corrosion appréciable n'a été observée dans les solutions d'acide borique et de K2SO4. Cependant, des piqûres apparentes ont été observées suite aux essais réalisés dans la solution de NaCl, et ce pour tous les matériaux étudiés. Pour l'alliage de base, le site préférentiel de piqûration était l'interface Al/Fe générée par la présence de particules intermétalliques. Pour le composite, l'interface AI/B4C était celle la plus favorable au développement de la corrosion localisée. Par ailleurs, il a été constaté que la 11 résistance à la corrosion des matériaux composites diminue lorsque la fraction volumique de B4C est augmentée.Dans le but de contrer l'agressivité des phénomènes de corros...

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Kinetics of corrosion inhibition of benzotriazole to copper in 3.5% NaCl

Cited by 19 publications

References 51 publications

Copper CMP Modeling: Millisecond Scale Adsorption Kinetics of BTA in Glycine-Containing Solutions at pH 4

Copper CMP Modeling: Millisecond Scale Adsorption Kinetics of BTA in Glycine-Containing Solutions at pH 4

Organic corrosion inhibitors: where are we now? Part I. Adsorption

Corrosion des composites à matrice metallique du type Al-B4C dans les solutions aqueuses /

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