A study of electrochemical kinetics of copper deposition under pulsed current conditions

Wan, Chi‐Chao; Cheh, H. Y.; Linford, Henry B.

doi:10.1007/bf00620584

Cited by 21 publications

(8 citation statements)

References 4 publications

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“…For the exchange current density i o , appreciable values are obtained in accordance with literature data reported by Farndon et al [ 38 ] and Wan et al [ 39 ]. The addition of CZ in the electrolyte solution leads to a small diminution of the exchange current density, which demonstrates the slight inhibitory effect of the organic compound on copper electrodeposition.…”

Section: Resultssupporting

confidence: 91%

Recycling of Expired Ceftamil Drug as Additive in the Copper and Nickel Electrodeposition from Acid Baths

Duca

Dan

Vaszilcsin

2021

IJERPH

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Due to the large quantity of expired and unused drugs worldwide, pharmaceutical disposal has become a serious problem that requires increased attention. In the present paper, the study on recycling ceftazidime (CZ) as an additive in copper and nickel electrodeposition from acid baths is highlighted. CZ is the active substance from expired commercial drug Ceftamil®. Its electrochemical behavior was studied by cyclic voltammetry. As well, kinetic parameters for copper and nickel electrodeposition were determined using Tafel plots method at different temperatures and CZ concentrations in these acid baths. The activation energy was calculated from Arrhenius plots. Electrochemical impedance spectroscopy was used to investigate the charge transfer resistance and coverage degree in the electrolyte solutions at several potential values. Gibbs free energy values, calculated from Langmuir adsorption isotherms, revealed the chemical nature of CZ–electrode surface interactions. The favorable effect of the organic molecules added in copper and nickel electroplating baths was emphasized by optical microscope images. The morphology of the obtained deposits without and with 10−4 mol L−1 CZ was compared. The experimental results revealed that expired Ceftamil® is suitable as additive in copper and nickel electroplating processes from acid baths.

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Section: Resultssupporting

confidence: 91%

Recycling of Expired Ceftamil Drug as Additive in the Copper and Nickel Electrodeposition from Acid Baths

Duca

Dan

Vaszilcsin

2021

IJERPH

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“…These are believed to correspond to the homogeneous solid-state reduction of proton insertion into the channels of ramsdellite and pyrolusite domains of ␥-MnO 2 . Continuing the potential sweep to more negative values than −0.4 V causes the formation of a solution-based Mn(III) intermediate via dissolution of MnOOH to subsequently precipitation of pyrochroite Mn(OH) 2 [39]. For ␥-MnO 2 samples, the higher capacity of this process is usually associated with higher surface area and hence dissolution of the starting material.…”

Section: Cyclic Voltammetrymentioning

confidence: 97%

Cycle life improvement of alkaline batteries via optimization of pulse current deposition of manganese dioxide under low bath temperatures

Adelkhani

Ghaemi

2007

Journal of Power Sources

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“…This surface is then oxidized to provide a highly antireflective surface [264]. Wan et al [265] reported that pulse time exerted the greatest effect on current efficiency, and Popov et al [266] showed that the effective current density is dependent not only on values of the effective overpotential but also on the ratio of pulse-to-pause duration and on the frequency of the input pulsating potential. Rudder [267] compared pulse plating of acid copper against cyanide copper and found that the leveling and thickness performance of the pulse-plated cyanide copper was better than that of acid copper.…”

Section: Current Modulation Techniquesmentioning

confidence: 99%

Electrodeposition of Copper

Dini

Snyder

2010

Modern Electroplating

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A study of electrochemical kinetics of copper deposition under pulsed current conditions

Cited by 21 publications

References 4 publications

Recycling of Expired Ceftamil Drug as Additive in the Copper and Nickel Electrodeposition from Acid Baths

Recycling of Expired Ceftamil Drug as Additive in the Copper and Nickel Electrodeposition from Acid Baths

Cycle life improvement of alkaline batteries via optimization of pulse current deposition of manganese dioxide under low bath temperatures

Electrodeposition of Copper

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