Magnetic behavior of nanocrystalline Cu–Ni–Co alloys prepared by mechanical alloying and isothermal annealing

Mondal, B.; Basumallick, A.; Chattopadhyay, Paramita

doi:10.1016/j.jallcom.2007.02.139

Cited by 30 publications

(8 citation statements)

References 11 publications

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“…Similarly, RuSnMo showed intermetallic bimetallic compounds of Ru 3 Sn 7 and Mo 5 Ru 3 and the irregular morphology of each, with sizes of 6-15 nm. 61 Mondal et al 62 used mechanical alloying to synthesize nanocrystalline Cu-Ni-Co alloys. After 30 h of ball milling, an inhomogeneous Cu-Ni powder with 8 nm size was obtained, then the isothermal annealing of the ball-milled powder gave nonmagnetic homogeneous Cu-Ni phases with increased particle size to 30 nm.…”

Section: Physical Methodsmentioning

confidence: 99%

Synthesis and potential applications of trimetallic nanostructures

Gebre

2022

New J. Chem.

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Section: Physical Methodsmentioning

confidence: 99%

Synthesis and potential applications of trimetallic nanostructures

Gebre

2022

New J. Chem.

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“…Alloy development has been imperative in our modern industrial scene: from infrastructure to informatics, as well as from energy and environment to medicine and aerospace [1,2]. For instance, nickel, cobalt, and copper are metals with good catalytic, electronic, and magnetic properties [3], and when these metals are mixed and transformed into binary or ternary alloys, novel and more powerful properties may be attained.…”

Section: Introductionmentioning

confidence: 99%

“…However, it is well known that one of the challenges of obtaining nanoparticles' alloy content is the production process and thus, different methodologies have been investigated, which can be categorized as either chemical or physical based techniques. There is electrodeposition [5,6,[18][19][20], vapor deposition [21,22], mechanical alloying [3], synthesis by hydrazine reduction [17], positive microemulsion [23], and melt spinning [15]. 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].…”

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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“…There are several synthetic approaches to prepare multimetallic NPs, namely electrochemical synthesis, chemical, and hydrothermal synthesis, coprecipitation, microemulsion, laser ablation, sol-gel, lithography, gas-phase condensation, microwave (MW) irradiation, mechanical alloying, and solvothermal technologies [ 32 , 33 , 34 , 35 , 36 ]. The literature reveals the preparation of trimetallic NPs as Sn-Zn-Cu [ 37 ], Pt 60 Ni 3 Cu 37 [ 38 ], Au-Pt-Pd [ 39 ], and Au-Pt-Ag [ 40 ], among others (summarized in Table 1 ).…”

Section: Introductionmentioning

confidence: 99%

Trimetallic Nanoparticles: Greener Synthesis and Their Applications

et al. 2020

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Nanoparticles (NPs) and multifunctional nano-sized materials have significant applications in diverse fields, namely catalysis, sensors, optics, solar energy conversion, cancer therapy/diagnosis, and bioimaging. Trimetallic NPs have found unique catalytic, active food packaging, biomedical, antimicrobial, and sensing applications; they preserve an ever-superior level of catalytic activities and selectivity compared to monometallic and bimetallic nanomaterials. Due to these important applications, a variety of preparation routes, including hydrothermal, microemulsion, selective catalytic reduction, co-precipitation, and microwave-assisted methodologies have been reported for the syntheses of these nanomaterials. As the fabrication of nanomaterials using physicochemical methods often have hazardous and toxic impacts on the environment, there is a vital need to design innovative and well-organized eco-friendly, sustainable, and greener synthetic protocols for their assembly, by applying safer, renewable, and inexpensive materials. In this review, noteworthy recent advancements relating to the applications of trimetallic NPs and nanocomposites comprising these NPs are underscored as well as their eco-friendly and sustainable synthetic preparative options.

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Magnetic behavior of nanocrystalline Cu–Ni–Co alloys prepared by mechanical alloying and isothermal annealing

Cited by 30 publications

References 11 publications

Synthesis and potential applications of trimetallic nanostructures

Synthesis and potential applications of trimetallic nanostructures

Characterization of Ternary CuNiCo Metallic Nanoparticles Produced by Hydrogen Reduction

Trimetallic Nanoparticles: Greener Synthesis and Their Applications

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