Influence of different concentrations of nicotinic acid on the electrochemical fabrication of copper film from an ionic liquid based on the complexation of choline chloride-ethylene glycol

Ballantyne, Andrew D.; Alesary, Hasan F.; Ismail, Hani K.; Odda, Atheer Hameid; Watkins, Mark J.; Majhool, Aldhussein Arkan; Ryder, Karl S.

doi:10.1016/j.jelechem.2021.115581

Cited by 22 publications

(7 citation statements)

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“…It can reach up to several hundred mV in chloride‐containing electrolytes, depending on the chloride concentration [6,18,28] . This separation is therefore also very pronounced for various electrodes in contact with chloride‐containing DESs due to strong Cu + stabilization [18,30–33] . The less water is present in the electrolyte, the more separated are the Cu 2+ /Cu + redox peak and OPD, i. e., the higher is the stabilization of Cu + [17,34] .…”

Section: Resultsmentioning

confidence: 99%

“…The stabilization is due to the formation of Cu(I) chloride complexes, leading to a higher formal potential of the Cu + /Cu 2+ redox process and a negative shift of the equilibrium potential of Cu bulk deposition/dissolution. Cu 2+ is predominantly present as [CuCl 4 ] 2− for high chloride concentrations [14,17,30,33–35] . For Cu + , the prevailing species are [CuCl 3 ] 2−[26] and [CuCl 2 ] − [35,36] …”

Section: Resultsmentioning

confidence: 99%

“…[6,18,28] This separation is therefore also very pronounced for various electrodes in contact with chloridecontaining DESs due to strong Cu + stabilization. [18,[30][31][32][33] The less water is present in the electrolyte, the more separated are the Cu 2 + /Cu + redox peak and OPD, i. e., the higher is the stabilization of Cu + . [17,34] The stabilization is due to the formation of Cu(I) chloride complexes, leading to a higher formal potential of the Cu + /Cu 2 + redox process and a negative shift of the equilibrium potential of Cu bulk deposition/ dissolution.…”

Section: Cyclic Voltammetrymentioning

confidence: 99%

“…Cu 2 + is predominantly present as [CuCl 4 ] 2À for high chloride concentrations. [14,17,30,[33][34][35] For Cu + , the prevailing species are [CuCl 3 ] 2À [26] and [CuCl 2 ] À . [35,36] Between 0.6 and 0.7 V Cu , three small peaks can be seen in Figure 1c, as in the case of the Cu + system (Figure 1a).…”

Section: Cyclic Voltammetrymentioning

confidence: 99%

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Influence of Chloride and Nitrate Anions on Copper Electrodeposition onto Au(111) from Deep Eutectic Solvents

et al. 2022

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Copper electrodeposition on Au(111) from deep eutectic solvents (DESs) type III was investigated employing cyclic voltammetry as well as chronoamperometry. It was further examined on Au(poly) using the electrochemical quartz crystal microbalance (EQCM). The employed DESs are mixtures of choline chloride (ChCl) or choline nitrate (ChNO3) with ethylene glycol (EG) as hydrogen bond donor (HBD), each in a molar ratio of 1 : 2. CuCl, CuCl2, or Cu(NO3)2 ⋅ 3H2O were added as copper sources. Underpotential deposition (UPD) of Cu precedes bulk deposition in chloride as well as nitrate electrolytes. Cu deposition from Cu+ in chloride media is observed as a one‐electron reaction, whereas deposition from Cu2+ occurs in two steps since Cu+ is strongly stabilized by chloride. Cu+ is less stabilized by nitrate and the beginning of bulk deposition in the nitrate‐containing DES with Cu2+ is shifted by several hundred mV to more positive potentials compared to the chloride DES. A diffusion‐controlled, three‐dimensional nucleation and growth mechanism is found by chronoamperometric measurements and analysis based on the model of Scharifker and Mostany.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Cyclic Voltammetrymentioning

confidence: 99%

Section: Cyclic Voltammetrymentioning

confidence: 99%

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Influence of Chloride and Nitrate Anions on Copper Electrodeposition onto Au(111) from Deep Eutectic Solvents

et al. 2022

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“…Deep eutectic solvents (DESs) are formed when a significant depression of the melting point of a mixture is observed compared to those of the individual components . Typically, these are mixtures of quaternary ammonium salts mixed with metal salts or hydrogen bond donors (HBDs), , although others such as the combination of metal salts with HBDs also exist . DESs have been applied in many areas including electrodeposition of metals and alloys, , conducting polymers, , metal finishing, desulfurization, pharmaceuticals, , and energy storage .…”

Section: Introductionmentioning

confidence: 99%

Effect of Graphene Oxide and Temperature on Electrochemical Polymerization of Pyrrole and Its Stability Performance in a Novel Eutectic Solvent (Choline Chloride–Phenol) for Supercapacitor Applications

et al. 2022

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Polypyrrole (Ppy)-modified graphene oxide (GO) electrodes were synthesized for the first time in a choline chloride–phenol-based deep eutectic solvent at various temperatures via electrochemical methods without the addition of any inorganic or organic catalysts. The surface morphologies and structures of the modified films were assessed via scanning electron microscopy, transmission electron microscopy, Fourier transform infrared spectroscopy, and X-ray diffraction techniques. The electrochemical properties and stability of the modified electrodes were investigated via cyclic voltammetry and impedance spectroscopy at various temperatures and scan rates. The results showed that the specific capacitance of the nanocomposites decreased with increasing scan rate during cycling. Additionally, the specific capacitances of the pure Ppy and Ppy/GO films increased with increasing temperature of the electrolyte (monomer-free), attributed to the reduction in viscosity at elevated temperature. The specific capacitances at 5 mV s –1 were found to be 1071.78 and 594.79 F g –1 for Ppy/GO (20 wt %) at 50 and 25 °C, respectively. It was also observed that the resistance in the cell decreased with increasing electrolyte temperature. Ppy/GO at 50 mV s –1 was found to have the highest capacitance retention of 85% after 2000 cycles, showing better cycling stability than the pure Ppy film. Herein, the incorporation of GO in the Ppy matrix led to improved specific capacitance and cyclic stability, suggesting that Ppy/GO could represent a promising electrode material for supercapacitor applications.

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Manganese Electrochemistry in a Deep Eutectic Solvent: The Effects of KBr

Alesary,

Noori,

Al‐Yasari

et al. 2024

ChemistrySelect

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This work reports the effects of potassium bromide (KBr) on the electrodeposition of manganese on copper from a DES consisting of a stoichiometric 1:2 mix of choline chloride and ethylene glycol (Ethaline 200). The speciation of MnCl2.4H2O in Ethaline 200 has been investigated using UV–vis spectroscopy, in particular with regard to the addition of KBr to the plating bath, for which no apparent change in the Mn species was noted. This said, the physical properties of the manganese deposits themselves were found to have been considerably improved in comparison to when KBr was omitted from the bath; indeed, the actual adhesion of Mn was achieved for the first time on a copper substrate, somewhat remarkably producing a coating of some considerable thickness. Given its clear electrochemical behavior of the Mn liquid were subsequently determined via cyclic voltammetry method. A reduction in the peak current of Mn was noted on addition of KBr. The mechanism of Mn deposition has been examined via chronocoulometry and chronoamperometry. Surface analyses of Mn deposits have been conducted via SEM/EDX, AFM, and XRD, from which improvements to the Mn surface coatings in depositions performed from an electrolyte containing 0.1 M KBr were noted.

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Influence of different concentrations of nicotinic acid on the electrochemical fabrication of copper film from an ionic liquid based on the complexation of choline chloride-ethylene glycol

Cited by 22 publications

References 53 publications

Influence of Chloride and Nitrate Anions on Copper Electrodeposition onto Au(111) from Deep Eutectic Solvents

Influence of Chloride and Nitrate Anions on Copper Electrodeposition onto Au(111) from Deep Eutectic Solvents

Effect of Graphene Oxide and Temperature on Electrochemical Polymerization of Pyrrole and Its Stability Performance in a Novel Eutectic Solvent (Choline Chloride–Phenol) for Supercapacitor Applications

Manganese Electrochemistry in a Deep Eutectic Solvent: The Effects of KBr

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