Surfactant Assisted Electrodeposition of Nanostructured CoNiCu Alloys

Hanafi, Ismail; Daud, Abdul Razak; Radiman, Shahidan; Ghani, M. H A; Budi, Setia

doi:10.1088/1742-6596/431/1/012013

Cited by 8 publications

(4 citation statements)

References 16 publications

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“…The micrograph obtained by transverse observation shows two parts with different colors, namely the black and grey sections. The black part in the image is an ITO micrograph, while the grey part is a Fe-Ni alloy particle micrograph [13]. Other peaks, such as Sn, In, and O, are obtained from the ITO substrate [14] [15].…”

Section: Resultsmentioning

confidence: 99%

The Effect of Electrodeposition Current and Electrolyte Composition on Electrodeposition of Fe-Ni Alloys

Rofi

Paristiowati²

2022

Chem. Mater.

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This research was conducted to determine the effect of solution variations, electrical current, thickness, weight, metal composition, and the characteristics of the Fe-Ni alloy synthesized using the electrodeposition method. The instruments used in this study were atomic absorption spectroscopy (AAS) to determine the metal composition in the deposit, X-ray diffraction to determine the diffraction patterns, and scanning electron microscopy (SEM) to observe morphology and energy dispersive X-ray spectroscopy for elemental analysis. The SEM micrographs obtained showed that morphology of the Fe-Ni alloy was in the form of refined grains. The percentage of Fe in the deposit decreases with the increase in the used current. The AAS data also showed that a high Ni composition in solution will affect the atomic percent of each metal in the deposit. The formation of the alloy was confirmed by diffraction peaks at 2θ of 44°, 53°, and 76° that associated with reflection planes of the face centered cubic structure of Fe-Ni with the crystallite size range from 5 nm to 35 nm.

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Section: Resultsmentioning

confidence: 99%

The Effect of Electrodeposition Current and Electrolyte Composition on Electrodeposition of Fe-Ni Alloys

Rofi

Paristiowati²

2022

Chem. Mater.

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“…Moreover, it is well established that alloys may enormously increase their effectiveness when nanostructured [5,13] and in recent years, the study of Cu-Ni-Co ternary alloys at the nanoscale has increased, as there is great interest in new potential applications [4,5,[14][15][16]]. An example is the current interest in materials with magnetic properties and data storage capacity for application in hard disk drives and sensors [17].…”

Section: Introductionmentioning

confidence: 99%

“…Electrodeposition is the most common studied method which has allowed to obtain uniform, smooth and fine-grained alloys with adequate morphology for specific applications [18]. Nonetheless, it incorporates a certain complexity that complicates its application at a large scale [5,14,[16][17][18]20]. The hydrogen reduction of homogeneous co-precipitated oxides has been mentioned as an alternative method to obtain binary alloys [24][25][26] and nanocomposites [27][28][29][30], but it has not yet been studied as a method of obtaining ternary alloys.…”

Section: Introductionmentioning

confidence: 99%

Characterization of Ternary CuNiCo Metallic Nanoparticles Produced by Hydrogen Reduction

et al. 2021

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Different methods of producing nanostructured materials at the laboratory scale have been studied using a variety of physical and chemical techniques, though the challenge here is the homogeneous distribution of the elements which also depends on the precursor elements. This work thus focused on the micro-analytical characterization of Cu–Ni–Co metallic nanoparticles produced by an alternative chemical route aiming to produce solid solution nanoparticles. This method was based on two steps: the co-formation of oxides by nitrates’ decomposition followed by their hydrogen reduction. Based on the initial composition of precursor nitrates, three homogeneous ternaries of the Ni, Cu and Co final alloy products were pre-established. Thus, the compositions in %wt of the synthesized alloy particles studied in this work are 24Cu–64Ni–12Co, 12Cu–64Ni–24Co and 10Cu–80Ni–10Co. Both precursor oxides and metallic powders were characterized by means of X-ray powder diffraction (XRD), scanning electron microscopy (SEM/EDS) and transmission electron microscopy (TEM). The results show that the synthesis procedure was successful since it produced a homogeneous material distributed in different particle sizes depending on the temperature applied in the reducing process. The final composition of the metallic product was consistent with what was theoretically expected. Resulting from reduction at the lower temperature of 300 ∘C, the main powder product consisted of particles with a spheroidal and eventually facetted morphology of 50 nm on average, which shared the same FCC crystal structure. Particles smaller than 100 nm in the Cu–Ni–Co alloy agglomerates were also observed. At a higher reduction temperature, the ternary powder developed robust particles of 1 micron in size, which are, in fact, the result of the coarsening of several nanoparticles.

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“…However, this technique may produce inappropriate FeCoNi powder, while for magnetic media storage applications, which require soft magnetic material, the most suitable is the film form. Several familiar methods to synthesize metal or alloy in the form of deposit or a film are known, such as electrodeposition technique [9][10][11][12], solgel [13], and magnetron sputtering [14]. Among them, electrodeposition employed for the synthesis of the magnetic films is more cost-effective compared with other preparation techniques.…”

Section: Introductionmentioning

confidence: 99%

Effect of the electrodeposition potential on the magnetic properties of FeCoNi films

Budi

Muhab

Purwanto

et al. 2019

Materials Science-Poland

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The effect of electrodeposition potential on the magnetic properties of the FeCoNi films has been reported in this paper. The FeCoNi electrodeposition was carried out from sulfate solution using potentiostatic technique. The obtained FeCoNi films were characterized by X-ray diffractometer (XRD), atomic absorption spectrometer (AAS) and vibrating sample magnetometer (VSM). It has been shown that the electrodeposition potential applied during the synthesis process determines the magnetic characteristics of FeCoNi films. The more negative potential is applied, the higher Ni content is in the FeCoNi alloy. At the same time, Co and Fe showed almost similar trend in which the content decreased with an increase in applied potential. The mean crystallite size of FeCoNi films was ranging from 11 nm to 15 nm. VSM evaluation indicated that the FeCoNi film is a ferromagnetic alloy with magnetic anisotropy. The high saturation magnetization of FeCoNi film was ranging from 86 A·m 2 /kg to 105 A·m 2 /kg. The film is a soft magnetic material which was revealed by a very low coercivity value in the range of 1.3 kA/m to 3.7 kA/m. Both the saturation magnetization and coercivity values decreased at a more negative electrodeposition potential.

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Surfactant Assisted Electrodeposition of Nanostructured CoNiCu Alloys

Cited by 8 publications

References 16 publications

The Effect of Electrodeposition Current and Electrolyte Composition on Electrodeposition of Fe-Ni Alloys

The Effect of Electrodeposition Current and Electrolyte Composition on Electrodeposition of Fe-Ni Alloys

Characterization of Ternary CuNiCo Metallic Nanoparticles Produced by Hydrogen Reduction

Effect of the electrodeposition potential on the magnetic properties of FeCoNi films

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