Untitled

An, Mao Zhong; Wang, Jianlong; Sun, Dezhi

doi:10.1023/a:1017577804078

Cited by 10 publications

(3 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The codeposition and the effects of the electrodeposition parameters of La-Ni alloy films were investigated in ethanol. 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.

View full text Add to dashboard Cite

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...

show abstract

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.

View full text Add to dashboard Cite

show abstract

“…For example, Sm-Fe alloy is found to exhibit giant magnetostriction for powerful transducer. Furthermore, it is used to fabricate the permanent magnet materials Sm 2 Fe 17 N x [1][2][3][4]; Gd-Co alloy is known to exhibit perpendicular magnetic anisotropy for magneto-optical recording media [5][6][7][8]; La-Ni alloy is usually used to form hydrogen storing functional material [9][10][11], etc. Up to now, RE-TM films are usually produced by the method of sputtering or melt casting, and the production processes are complex and costly [12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Electrodeposition of RE–TM (RE=La, Sm, Gd; TM=Fe, Co, Ni) films and magnetic properties in urea melt

Lai

Fan

et al. 2009

Journal of Alloys and Compounds

View full text Add to dashboard Cite

“…This approach is a challenging task due to the large separation of their reduction potentials. Up to now, only limited explorations on Ni-La alloy have succeeded, mainly confined to organic solvents, 29,30 and to the best of our knowledge, no report on electrodeposition of Ni-La alloy from ILs is available.…”

mentioning

confidence: 99%

Electrochemical Preparation of Ni-La Alloy Films from N-butyl-N-Methyl Pyrrolidinium Dicyanamide Ionic Liquid as Electrocatalysts for Hydrogen Evolution Reaction

Gao

Yang

Zhang

et al. 2017

J. Electrochem. Soc.

View full text Add to dashboard Cite

Nickel alloys are burgeoning as interesting non-precious electrocatalysts for their excellent catalytic activity toward hydrogen evolution reaction (HER). In this work, we report a facile electrochemical strategy for fabricating porous nanoparticle-packed Ni-La alloy films grown on copper substrate from N-butyl-N-methyl pyrrolidinium dicyanamide ionic liquid (BMP-DCA IL) containing anhydrous NiCl2 and LaCl3, which can be acted as efficient and stable catalysts for HER in alkaline solution. The relevant voltammetric behaviors of Ni(II), La(III) and their mixtures in the BMP-DCA IL, potentiostatic electrodeposition processes, as well as the HER electrocatalytic performances of the resultant deposits were investigated. The electrocrystalization of Ni nuclei was found to promote the electrochemical reduction of La, and induce the co-deposition of amorphous Ni-La alloy. The prepared Ni-La alloy films coated on a copper wire (Ni-La/Cu) obtained at optimal preparing conditions exhibit high-performance HER catalytic activity with a Tafel slope of 75.6 mV dec−1 and an exchange current density of 0.115 mA cm−2. Compared with other Ni-RE (rare earth) based HER electrocatalysts in alkaline media, the electrode needs low overpotentials of −190, −218 and −270 mV to drive cathodic current densities of 10, 20 and 100 mA cm−2, respectively, and its catalytic activity can be maintained for at least 27 h.

show abstract

Untitled

Cited by 10 publications

References 5 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

Electrodeposition of RE–TM (RE=La, Sm, Gd; TM=Fe, Co, Ni) films and magnetic properties in urea melt

Electrochemical Preparation of Ni-La Alloy Films from N-butyl-N-Methyl Pyrrolidinium Dicyanamide Ionic Liquid as Electrocatalysts for Hydrogen Evolution Reaction

Contact Info

Product

Resources

About