Surface-enhanced Raman scattering (SERS) on copper electrodes in 1-n-butyl-3-methylimidazoliun tetrafluorbarate (BMI.BF4): The adsorption of benzotriazole (BTAH)

Costa, Leonardo Alberto Fernandes da; Breyer, Harumi S.; Rubim, Joel C.

doi:10.1016/j.vibspec.2010.03.012

Cited by 23 publications

(10 citation statements)

References 18 publications

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“…Tian has suggested that negative potentials both reduce the size of the oligomers and attract sufficient H + to reprotonate coordinated BTA − 5, 25. A similar mechanism is suggested to occur with BTA films with ionic liquids as the solvent 29. Disruption at grain boundaries could allow reprotonation to occur on BTA − ‐Cu films formed on polycrystalline Cu.…”

Section: Resultsmentioning

confidence: 99%

Shell‐isolated nanoparticle enhanced Raman spectroscopy (SHINERS) investigation of benzotriazole film formation on Cu(100), Cu(111), and Cu(poly)

Honesty

Gewirth

2011

J Raman Spectroscopy

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Benzotriazole (BTAH) is well known as an effective corrosion inhibitor for Cu because of its ability to make a coordination polymer film on the surface that provides a barrier to Cu oxidation. BTA − film formation was investigated on single-crystal and polycrystalline Cu surfaces with shell-isolated nanoparticle enhanced Raman spectroscopy (SHINERS) using silica-encapsulated Au nanoparticles. Potential-dependent spectra display reversible film formation on polycrystalline Cu and irreversible film formation on single-crystal Cu. Grain boundaries leading to smaller BTA − -Cu oligomers are proposed to be the reason for cathodic degradation of the BTA − polymeric films on polycrystalline Cu.

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Section: Resultsmentioning

confidence: 99%

Shell‐isolated nanoparticle enhanced Raman spectroscopy (SHINERS) investigation of benzotriazole film formation on Cu(100), Cu(111), and Cu(poly)

Honesty

Gewirth

2011

J Raman Spectroscopy

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“…A limited number of SERS studies on other metals such as zinc and metal alloys are found . In many papers, the SERS activation of the substrate is obtained via oxidation–reduction cycles, but in order to maintain the link with industrial samples, the interactions between the original brass surface (material ‘as such’) and the adsorbing species have to be investigated in this work. Modifying or roughening the surface would impede to retrieve this information.…”

Section: Resultsmentioning

confidence: 99%

“…For this purpose a transparent solution is necessary. As water is one of the most aggressive compounds in reinforced tyres, a non‐aqueous solution has to be considered . The air‐ and water‐stable ionic liquid (IL) 1‐butyl‐1‐methyl‐pyrrolidinium bis(trifluoromethylsulfonyl)imide has been chosen as a model system to simulate the rubber matrix.…”

Section: Introductionmentioning

confidence: 99%

The combination of surface enhanced Raman spectroscopy and an ionic liquid as a model system to study the adhesion interface between sulfur and brass

Baert

Breugelmans

Buytaert

et al. 2013

J Raman Spectroscopy

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The adhesion of steel cord to rubber is very important for the quality of reinforced rubber products, e.g. tyres. Therefore, steel cord is often plated with brass, which will lead to CuxS bonds after reaction with sulfur compounds in the rubber. A unique in‐situ analytical method has been developed to investigate the sulfur–brass interface: the sulfuring process has been simulated via a heating process in a water‐free transparent ionic liquid with added sulfur and the reaction at the brass‐coated steel cord has been monitored in real time with Raman spectroscopy. The grown CuxS film seems to be similar to the layers at the steel cord interface in real rubber materials. The model system can also be used to perform electrochemical measurements at the same time. The thickness of the CuxS layer has been estimated from the measured current during a cathodic stripping process. Copyright © 2013 John Wiley & Sons, Ltd.

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“…This indicates the bond of HMTA formed on the surface of N80 is stronger than that of TU. The energy of LUMO ( ), which stands for the ability of electron receiving tendency, is directly related to the electron affinity and characterizes the susceptibility of the molecule toward attack by nucleophiles [48,49]. The lower the values of are, the stronger the electron accepting abilities of the molecules are.…”

Section: Quantum Chemical Calculationsmentioning

confidence: 99%

An Investigation of a Combined Thiourea and Hexamethylenetetramine as Inhibitors for Corrosion of N80 in 15% HCl Solution: Electrochemical Experiments and Quantum Chemical Calculation

Wang

et al. 2015

International Journal of Corrosion

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The inhibition mechanism of thiourea (TU) and hexamethylenetetramine (HMTA) mixed in 15% HCl solution on N80 surface was investigated by potentiodynamic polarization, electrochemical impedance spectroscopy measurements, and surface morphology analysis. Quantum chemical calculations and molecular dynamics simulations were performed to study the properties of TU and HMTA. The results showed that the inhibitors can form strong bonds and stable films on the surface, which inhibits the cathodic and anodic reactions in HCl solution and reduces the diffusion coefficients of corrosive particles.

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Surface-enhanced Raman scattering (SERS) on copper electrodes in 1-n-butyl-3-methylimidazoliun tetrafluorbarate (BMI.BF4): The adsorption of benzotriazole (BTAH)

Cited by 23 publications

References 18 publications

Shell‐isolated nanoparticle enhanced Raman spectroscopy (SHINERS) investigation of benzotriazole film formation on Cu(100), Cu(111), and Cu(poly)

Shell‐isolated nanoparticle enhanced Raman spectroscopy (SHINERS) investigation of benzotriazole film formation on Cu(100), Cu(111), and Cu(poly)

The combination of surface enhanced Raman spectroscopy and an ionic liquid as a model system to study the adhesion interface between sulfur and brass

An Investigation of a Combined Thiourea and Hexamethylenetetramine as Inhibitors for Corrosion of N80 in 15% HCl Solution: Electrochemical Experiments and Quantum Chemical Calculation

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