Production of Copper Powder by Electrodeposition with Different Equilibrium Crystal Shape

Nanda, Bibhudatta; Mallik, Manila

doi:10.1007/s12666-020-02015-6

Cited by 2 publications

(2 citation statements)

References 30 publications

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“…3 ). These structures are typically formed in a local non-equilibrium state 49 – 52 . Hence, in this case the typical mechanism of crystal growth limited by the mass transport may be assumed, as it was explained before.…”

Section: Resultsmentioning

confidence: 99%

Characterization of electrochemical deposition of copper and copper(I) oxide on the carbon nanotubes coated stainless steel substrates

Marchewka

Kołodziejczyk

Bezkosty

et al. 2023

Sci Rep

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The nanocomposite coatings composed of carbon nanotubes and various forms of copper were prepared in the two-step process. Firstly, carbon nanotubes were coated on stainless steel substrate using electrophoretic deposition at constant current. Then, the process of electrochemical deposition using copper(II) sulphate solutions was performed under high overpotential conditions. The modification of the copper(II) cations concentration in the solution and the deposition time provided the formation of various forms of crystals. The samples and their cross-sections were observed and examined using scanning electron microscope equipped with electron dispersive spectroscopy system. The analysis of chemical composition revealed that in addition to the pure copper crystals, the crystals characterized by the presence of copper and oxygen were formed. Therefore, Raman spectroscopy was applied to determine the unknown stoichiometry of this copper oxide. The point and in-depth analysis identified copper(I) oxide in the form of different size crystals depending on the concentration of the copper(II) sulphate solution. To confirm these findings, grazing incidence X-ray diffraction measurements were also performed. the combination of the applied methods has provided the detailed description of the preparation of the nanocomposite coatings with the proposed mechanism of copper(I) oxide formation.

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Section: Resultsmentioning

confidence: 99%

Characterization of electrochemical deposition of copper and copper(I) oxide on the carbon nanotubes coated stainless steel substrates

Marchewka

Kołodziejczyk

Bezkosty

et al. 2023

Sci Rep

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show abstract

“…3,[24][25][26][27] In the last time, a special attention is devoted to the effect of various addition agents or additives added to the electrolyte on morphology, size and distribution of the Cu particles. 21,[28][29][30][31][32] The some typical additives used in the processes of Cu electrolysis are: polyvinylpyrrolidone (PVP), 21,30 sodium dodecyl sulfate (SDS), 21,30,32 polyethylene glycol (PEG), 21 cellulose, 21 cetyltrimethylammonium bromide (CTAB), 30,[32][33][34][35] thiourea (Tu), 21 potassium ferrocyanide 29 and 2,2′-dipyridine, 29 etc. For example, the particles of spherical shape can be obtained by addition of the mixture of potassium ferrocyanide and 2,2′-dipyridine.…”

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confidence: 99%

A Novel Route for Electrolytic Production of Very Branchy Copper Dendrites under Extreme Conditions

Shafiei

Jafarzadeh

Madram

et al. 2021

J. Electrochem. Soc.

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Copper electrodeposition in a form of powder was examined using the pulsating overpotential (PO) regime from the sulfate electrolyte without or with an addition of various concentrations of chloride ions. Morphological and structural characteristics of the produced particles were analyzed by the scanning electron microscope (SEM) and the X-ray diffraction (XRD) method. The final morphology of Cu powders was determined with two parallel processes: a) suppression of hydrogen evolution reaction due to pause duration considerably longer than the deposition time, and b) catalytic effect of added chlorides. Depending on the amplitude of overpotential applied, addition of chlorides into the solution led to either an appearing of dendrites or to formation of very branchy dendrites, what confirms a catalytic effect of these ions on the process of Cu electrolysis. The novel forms of copper dendrites, such as the needle-like and the 2D (two dimensional), were identified in this investigation, and the catalytic effect of chlorides on copper electrodeposition has been just discussed by morphological analysis of these dendritic forms. The XRD analysis of the copper dendrites obtained with an addition of chlorides showed predominantly oriented the Cu crystallites in (111) plane.https://mc04.manuscriptcentral.com/jes-ecs

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Production of Copper Powder by Electrodeposition with Different Equilibrium Crystal Shape

Cited by 2 publications

References 30 publications

Characterization of electrochemical deposition of copper and copper(I) oxide on the carbon nanotubes coated stainless steel substrates

Characterization of electrochemical deposition of copper and copper(I) oxide on the carbon nanotubes coated stainless steel substrates

A Novel Route for Electrolytic Production of Very Branchy Copper Dendrites under Extreme Conditions

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