Influence of organic additives on the initial stages of copper electrodeposition on polycrystalline platinum

Quinet, Magali; Lallemand, Fabrice; Ricq, Laurence; Hihn, Jean‐Yves; Delobelle, P.; Arnould, Christelle; Mekhalif, Zineb

doi:10.1016/j.electacta.2008.09.052

Cited by 67 publications

(43 citation statements)

References 57 publications

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“…Atomic force microscopy (AFM) and transmission electron microscope (TEM) analysis have confirmed smooth surface and average size of nanoparticles in the optimal coating. Key words: yitria, electrodeposition, tertiary nanocomposite coatings, wear, carbon nanotube.Nickel and nickel-based alloys are used widely for numerous applications, which most of them require corrosion, wear and heat resistances, including different turbine plants, nuclear power systems, and chemical and oil industries.Ceramic or metal matrix nanocomposite coatings usually have special properties such as dispersion hardening, self-lubricity, high temperature inertness, good wear and corrosion resistance, chemical and biological compatibility [1][2][3][4][5][6][7]. This accounts for the increased application of Ni-based nanocomposites in different industries.…”

mentioning

confidence: 99%

“…Ceramic or metal matrix nanocomposite coatings usually have special properties such as dispersion hardening, self-lubricity, high temperature inertness, good wear and corrosion resistance, chemical and biological compatibility [1][2][3][4][5][6][7]. This accounts for the increased application of Ni-based nanocomposites in different industries.…”

mentioning

confidence: 99%

“…This consideration led to the selection of four influential factors, i.e. Y 2 O 3 concentration, time, current density and temperature of electrolyte with three different levels (1)(2)(3). Figure analysis measurements were conducted to determine the size of nanocrystals of the coated samples.…”

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Study of wear resistance and nanostructure of tertiary Al2O3/Y2O3/CNT pulsed electrodeposited ni-based nanocomposite

et al. 2010

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Electrodeposition of tertiary Alumina/Yitria/carbon nanotube (Al 2 O 3 /Y 2 O 3 /CNT) nanocomposite by using pulsed current has been studied. Coating process has been performed in nickel sulphate bath and nanostructure of the obtained compound layer was examined with high precision figure analysis of SEM nanographs. The effects of process variables, i.e. Y 2 O 3 concentration, treatment time, current density and temperature of electrolyte have been experimentally studied. Statistical methods were used to achieve the minimum wear rate and average size of nanoparticles. Finally the contribution percentage of different effective factors was revealed and confirmation run showed the validity of the obtained results. Also it has been revealed that by changing the size of nanoparticles, wear properties of coatings will change significantly. Atomic force microscopy (AFM) and transmission electron microscope (TEM) analysis have confirmed smooth surface and average size of nanoparticles in the optimal coating. Key words: yitria, electrodeposition, tertiary nanocomposite coatings, wear, carbon nanotube.Nickel and nickel-based alloys are used widely for numerous applications, which most of them require corrosion, wear and heat resistances, including different turbine plants, nuclear power systems, and chemical and oil industries.Ceramic or metal matrix nanocomposite coatings usually have special properties such as dispersion hardening, self-lubricity, high temperature inertness, good wear and corrosion resistance, chemical and biological compatibility [1][2][3][4][5][6][7]. This accounts for the increased application of Ni-based nanocomposites in different industries. In order to meet the requirement for developing novel metal-based nanocomposites, many preparation techniques have been investigated. Considering a technique conducted at a normal pressure and ambient temperature and with low cost and high deposition rate, electrodeposition is considered to be one of the most important techniques for producing nanocomposites and nanocrystals [8][9][10][11].In this paper, tertiary nanocomposite coatings consisting of nanometric-sized Al 2 O 3 /Y 2 O 3 /CNT particles embedded in a Ni-matrix by pulsed electrodeposition method were studied. The nanostructure and wear resistance of obtained nanocomposites were investigated with respect to the different effective factors of coating process. Ni matrix composite coatings containing nano-sized Al 2 O 3 /Y 2 O 3 /CNT fine particles with different average sizes of nanoparticles were prepared in a nickel sulphate bath. The wear performance of these coatings and its relation to the distribution of nanopaticles has been analyzed in a systematical way.The design of experiment (Taguchi method) [12][13] took into account the influencing extent of individual process parameter. This consideration led to the selection of four influential factors, i.e. Y 2 O 3 concentration, time, current density and

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Study of wear resistance and nanostructure of tertiary Al2O3/Y2O3/CNT pulsed electrodeposited ni-based nanocomposite

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“…Turner et al 3 suggested that the reduction of TU had electrochemical nature. Quinet et al 45 indicated that the Cu ions adsorbed on the electrode surface suppressed the reaction of Cu electrodeposition. Suarez et al 46 indicated that TU formed a complex with the Cu ions.…”

Section: Measurement Of Impedance Spectra Of Cu Electrodementioning

confidence: 99%

“…When the test solution contained TU, the current densities of the cathode polarization curve decreased remarkably, thus indicating that the electrodeposition of Cu was suppressed due to the adsorption of TU on the surface. 45 The cathode polarization curves of the Cu electrode in 2 M H 2 SO 4 and 0.5 M CuSO 4 containing 1 mM TU are shown in Fig. 4.…”

Section: Electrochemical Measurementmentioning

confidence: 99%

Interpretation of Negative Resistance Observed in Electrochemical Impedance during Copper Electrodeposition Containing Thiourea

et al. 2015

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The effect of the thiourea on the electrochemical impedance during copper electrodeposition was investigated using a rotating ring disk electrode. The rest potential of the copper electrode measured in the solution containing thiourea was shifted to less noble due to the adsorption of thiourea. The cathode polarization curve of the copper electrode demonstrated that the current density of the copper electrode decreased remarkably because of an increase in the concentration of thiourea. The Nyquist plot of impedance spectrum in the presence of the thiourea described the capacitive loop, which was related to the time constant of the charge transfer resistance and the electric double layer capacitance, in the high frequency range and a part of the large locus crossing the imaginary axis in the low frequency range. This low frequency locus is related to negative resistance which contributes to "leveler" effect. In order to clarify the negative resistance, the theoretical equations of the Faraday impedance were derived. We proposed the four steps of the copper electrodepostion reactions in the presence of thiourea.

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Sonoelectrodeposition: The Use of Ultrasound in Metallic Coatings Deposition

Hihn

Touyeras

Doche

et al. 2012

Power Ultrasound in Electrochemistry

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Influence of organic additives on the initial stages of copper electrodeposition on polycrystalline platinum

Cited by 67 publications

References 57 publications

Study of wear resistance and nanostructure of tertiary Al2O3/Y2O3/CNT pulsed electrodeposited ni-based nanocomposite

Study of wear resistance and nanostructure of tertiary Al2O3/Y2O3/CNT pulsed electrodeposited ni-based nanocomposite

Interpretation of Negative Resistance Observed in Electrochemical Impedance during Copper Electrodeposition Containing Thiourea

Sonoelectrodeposition: The Use of Ultrasound in Metallic Coatings Deposition

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