Electrodeposition of Ni–Cu alloys from a protic ionic liquid medium-voltammetric and surface morphologic studies

Saranya, D.; Velayutham, D.; Suryanarayanan, V.

doi:10.1016/j.jelechem.2014.10.001

Cited by 20 publications

(14 citation statements)

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“…17 Electrodeposited (NiZn) 33 Fe 67 and Ni 33 Fe 67 alloys were obtained from ethylene glycol as solvent and metal sulfates as solutes. [18][19] Recently, Saranya -3 -et al 16 studied the electrodeposition of Ni, Cu and Ni-Cu alloys from a triethylammonium trifluoroacetate medium.…”

Section: Introductionmentioning

confidence: 99%

Electrodeposition of Ni from Various Non-Aqueous Media: The Case of Alcoholic Solutions

Neuróhr

Pogány

Tóth

et al. 2015

J. Electrochem. Soc.

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Although electrodeposition from aqueous media has been widely used to obtain metallic deposits, there are cases where the application of non-aqueous solutions offers advantages over the traditional baths or even represents the only way to electrodeposit some metals. For this reason, a study of the electrodeposition of Ni from various alcoholic solutions was performed. Apart from a detailed cyclic voltammetry study of these solutions, the surface morphology, crystal structure and texture as well magnetic properties of the deposits have also been investigated. The best results were obtained with methanol as solvent, so results on Ni deposits prepared from this solution will be presented in more detail whereas the case of the other alcoholic solutions investigated will be summarized only briefly. Structural and magnetic properties of the deposits obtained have been compared to literature data on Ni samples obtained from various non-aqueous solvents. Electrodeposition of metals and alloys has long been an important topic of scientific and technical literature.1 The overwhelming majority of technologically relevant electroplating procedures are based on various aqueous solvents.2 In spite of the scattered appearance of the application of non-aqueous solvents, the breakthrough happened only when ionic liquids became a hot topic and many papers appeared about the electrodeposition of such metals from these electrolytes 3 that are not accessible with conventional aqueous electroplating.Apparently, Takei initiated first a series of studies for the electrodeposition of metals from non-aqueous solutions.4-8 The main motivation for his efforts was 7 the need for obtaining electrodeposits of metals like Al and Be which cannot be electrodeposited from aqueous solutions. There are also several other metals or alloys which have useful properties from the viewpoint of industrial applications but cannot be electrodeposited from aqueous solutions. In spite of the efforts after the works by Takei, the literature of metal and alloy electrodeposition from non-aqueous solutions is not very abundant (apart from the extended literature of electrodeposition from ionic liquids which was reviewed in Ref. 3).As to the electrodeposition of Ni from non-aqueous solutions, several papers have been published on this topic 3,4,6,7,9-16 but we shall here only briefly mention some of these results. Lee et al.14 reported the growth of nanocrystalline Ni films on n-Si(111) substrate by pulsed electrodeposition. A room-temperature methanol solution with dissolved NiCl 2 (in 0.1 M concentration by using the hydrated NiCl 2 salt) was used which was purged with high-purity nitrogen to remove the oxygen. The potential pulses were applied at various frequencies with a constant duty cycle of 50%. Nickel was also electrodeposited from a Ni(CF 3 COO) 2 -halide-methanol bath.6,7 Plating of nickel with various ceramic particles (also referred to as suspension plating) was carried out using an ethanol-based nickel bath. The effects of particle loading, current d...

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Section: Introductionmentioning

confidence: 99%

Electrodeposition of Ni from Various Non-Aqueous Media: The Case of Alcoholic Solutions

Neuróhr

Pogány

Tóth

et al. 2015

J. Electrochem. Soc.

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Section: Resultsmentioning

confidence: 99%

“…Further electrochemical studies associated with diffusion coefficient calculations and the plot of peak current versus square root of scan rate for Ag(I), Cu(II) and Ni(II) ions in the same medium have been already discussed in our previous research works. 18,35 Cyclic voltammograms of the GC electrode in TEATFA containing various concentrations of Ag(I), Cu(II), and Ni(II) ions (mentioned inside the figure) at the same sweep rate of 50 mV s −1 are shown in Figure 1B−D, respectively. Voltammogram taken with Ag(I), Cu(II), and Ni(II) ions at a molar ratio of 34:33:33 shows two cathodic peaks at −1.10 and −0.24 V assigned to reduction of Cu(II) ions to Cu and Ag(I) ions to Ag followed by three oxidation peaks at −0.20, 0.39, and 0.98 V corresponding to oxidation of Ag to Ag(I) ions, Cu to Cu(II) ions, and Ni to Ni(II) ions, respectively (curve d).…”

Section: ■ Results and Discussionmentioning

confidence: 99%

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Ag_xCu_yNi_z Trimetallic Alloy Catalysts for the Electrocatalytic Reduction of Benzyl Bromide in the Presence of Carbon Dioxide

et al. 2018

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Different compositions of trimetallic alloy containing silver, copper, and nickel (Ag x Cu y Ni z ) were electrodecorated in a protic ionic liquid medium on glassy carbon electrodes in order to investigate the suitability of the materials as catalysts for electrochemical reduction of carbon dioxide (CO 2 ). Surface characteristic morphology obtained by scanning electron microscopy shows cauliflower crystallites for the deposit of Ag, whereas materials of Cu and Ni exhibit cubic grains and fine particles, respectively. Deposits of trimetallic alloy containing Ag, Cu, and Ni exhibit the mixture of the three characteristic features. Further, trimetallic alloy containing a large amount of Ag provides high crystallinity, whereas predominance of Cu as well as Ni results in porous structures, as revealed by X-ray diffraction analysis. Atomic absorption spectroscopy () was used to determine the compositions of different alloy materials. The suitability of nanomaterials as cathodes for electroreduction of benzyl bromide in CO 2 containing 0.1 M tetra- n -butylammonium tetrafluoroborate (DMF/TBABF 4 )/ N , N -dimethylformamide medium was explored. The linear sweep voltammogram reveals that Ag 46 Cu 40 Ni 14 shows higher cathodic peak current and lower cathodic peak potential than those of other deposited nanomaterials as well as alloys, indicating its higher catalytic activity for such an electroreduction process, whereas potentiostatic electrolysis confirms the abovementioned results.

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“…Very recently, He and coworkers prepared nanocrystalline Cr coatings from protic 1‐butyl‐3‐methylimidazolium‐hydrogen sulfate ([Bmim]HSO 4 ) IL containing Cr III . In another work by Saranya and coworkers, NiCu alloys were electrodeposited from a protic ionic liquid triethylammonium trifluoroacetate.…”

Section: Direct Electrodeposition From Ilsmentioning

confidence: 99%

Electrodeposition in Ionic Liquids

et al. 2015

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Due to their attractive physico-chemical properties, ionic liquids (ILs) are increasingly used as deposition electrolytes. This review summarizes recent advances in electrodeposition in ILs and focuses on its similarities and differences with that in aqueous solutions. The electrodeposition in ILs is divided into direct and template-assisted deposition. We detail the direct deposition of metals, alloys and semiconductors in five types of ILs, including halometallate ILs, air- and water-stable ILs, deep eutectic solvents (DESs), ILs with metal-containing cations, and protic ILs. Template-assisted deposition of nanostructures and macroporous structures in ILs is also presented. The effects of modulating factors such as deposition conditions (current density, current density mode, deposition time, temperature) and electrolyte components (cation, anion, metal salts, additives, water content) on the morphology, compositions, microstructures and properties of the prepared materials are highlighted.

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Electrodeposition of Ni–Cu alloys from a protic ionic liquid medium-voltammetric and surface morphologic studies

Cited by 20 publications

References 31 publications

Electrodeposition of Ni from Various Non-Aqueous Media: The Case of Alcoholic Solutions

Electrodeposition of Ni from Various Non-Aqueous Media: The Case of Alcoholic Solutions

Ag_xCu_yNi_z Trimetallic Alloy Catalysts for the Electrocatalytic Reduction of Benzyl Bromide in the Presence of Carbon Dioxide

Electrodeposition in Ionic Liquids

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Electrodeposition of Ni–Cu alloys from a protic ionic liquid medium-voltammetric and surface morphologic studies

Cited by 20 publications

References 31 publications

Electrodeposition of Ni from Various Non-Aqueous Media: The Case of Alcoholic Solutions

Electrodeposition of Ni from Various Non-Aqueous Media: The Case of Alcoholic Solutions

AgxCuyNiz Trimetallic Alloy Catalysts for the Electrocatalytic Reduction of Benzyl Bromide in the Presence of Carbon Dioxide

Electrodeposition in Ionic Liquids

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Product

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About

Ag_xCu_yNi_z Trimetallic Alloy Catalysts for the Electrocatalytic Reduction of Benzyl Bromide in the Presence of Carbon Dioxide