Interphase synthesis of colloidal magnetic cobalt nanoparticles

Kudlash, Alexander; Vorobyova, S. A.; Лесникович, А. И.

doi:10.22364/mhd.44.1.2

Cited by 3 publications

(3 citation statements)

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“…The interfacial synthesis of bimetallic Pd-Ni particles was performed by the interaction of an aqueous solution of a palladium complex compound with a solution of the quaternary ammonium salt (tetradecylammonium nitrate) in a 5 : 1 hexane-chloroform mixture. The Pd-Ni particles were localized in the aqueous phase, and a gel formed at the interface [34].…”

Section: Auclmentioning

confidence: 99%

“…If liquids are solutions of substances capable of being involved in chemical interaction, a chemical reaction takes place either at the interface or in the adjacent parts of one of the liquids. The resulting molecules of a new substance can be localized at the interface, forming nanoparticles, which can crystallize, aggregate or remain unaggregated, interact with identically or oppositely charged particles [39], and form monolayer [40] or multilayer ordered structures or disordered clusters [41][42][43], films [44][45][46][47], gels [34], or precipitates [25,[48][49][50][51][52][53][54]. The range of interfacial formations is very wide (Fig.…”

Section: Interfacial Formationsmentioning

confidence: 99%

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Interfacial Synthesis: Morphology, Structure, and Properties of Interfacial Formations in Liquid–Liquid Systems

Golubina

Kizim

2021

Russ. J. Phys. Chem.

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The results of studies in the field of interfacial synthesis and interfacial formations in liquid–liquid systems are summarized. The mechanisms of the processes of interfacial synthesis are considered. Data on the self-assembly of nanoparticles, films, and 3D materials are given. The properties of materials of interfacial formations in systems with rare-earth elements and di(2-ethylhexyl)phosphoric acid, obtained both in the presence and absence of local vibrations, are described. It was established that materials obtained in the presence of local vibrations in the interfacial layer have higher density, melting point, and magnetic susceptibility and lower electric conductivity. The effect of force field parameters on the properties of interfacial formations is considered. Practical applications and prospects for research in the field of interfacial formations are discussed.

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Section: Auclmentioning

confidence: 99%

Section: Interfacial Formationsmentioning

confidence: 99%

Interfacial Synthesis: Morphology, Structure, and Properties of Interfacial Formations in Liquid–Liquid Systems

Golubina

Kizim

2021

Russ. J. Phys. Chem.

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“…Synthesis of CoNPs through chemical reduction approach is possible even without utilizing a polymeric substance as a surfactant. Kudlash et al [47] synthesized CoNPs in the absence of a polymeric stabilizer by employing the interphase reduction of cobalt oleate (C 36 H 66 CoO 4 , hexane or toluene solution) and NaBH 4 (aqueous or EtOH solution). The X-ray diffraction (XRD) pattern showed no oxide peaks, suggesting that hexane (toluene) or sodium oleate could possibly develop a protective layer on the surface of CoNPs, which protects them against oxidation.…”

Section: Pure Cobalt Nanoparticlesmentioning

confidence: 99%

Synthesis of cobalt, palladium, and rhenium nanoparticles

2020

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Over the past decade, metal nanoparticles (MNPs) have attracted extensive attention due to their unique physiochemical properties that make them highly applicable in various fields such as chemical sensing, energy storage, catalysis, medicine, and environmental engineering. Their physiochemical properties depend drastically on the MNP size and morphology, which are largely determined by their synthesis methods. Research on MNPs predominantly focused on coinage metals (Au, Ag and Cu), but in the last decade research on metals with a relatively high melting temperature such as Pd, Co, and Re has seen rapid increases, mainly driven by their potential applications as catalysts. This paper presents the recent advances on different synthesis techniques of Co, Pd, and Re nanoparticles, their resulting nanostructures, as well as existing and potential applications.

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Voltammetric analysis of epinephrine using glassy carbon electrode modified with nanocomposite prepared from Co-Nd bimetallic nanoparticles, alumina nanoparticles and functionalized multiwalled carbon nanotubes

Agrahari

Singh

Gautam

et al. 2022

Environ Sci Pollut Res

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Herein, we investigated the electrochemical behaviour of fMWCNTs decorated with Co-Nd bimetallic nanoparticles and alumina nanoparticles (Co-Nd/Al 2 O 3 @fMWCNTs). The nanocomposites were synthesised using simple mechanical mixing and characterised by FT-IR, XRD, UV–visible studies, SEM, TEM and EDAX. Moreover, the crystalline size of the synthesised nanoparticles was also calculated using XRD data (Debye–Scherer formula) and was found in the nm range. The electrochemical behaviour of epinephrine (EP) was examined in the presence of Co-Nd/Al 2 O 3 @fMWCNTs nanocomposite modified glassy carbon electrode (GCE) using various electrochemical techniques such as cyclic voltammetry (CV), differential pulse voltammetry (DPV), electrochemical impedance spectroscopy (EIS), and chronocoulometry. Among all the above-mentioned techniques, the DPV response of the modified Co-Nd/Al 2 O 3 @fMWCNTs/GCE under optimal circumstances revealed a dual linear range (0.2 to 4000 µM and 4000 to 14,000 µM) and LOD of 0.015 µM ( S / N = 3). The sensitivities were determined to be 0.00323 µAµM −1 and 0.0004 µAµM −1 in 0.2 to 4000 µM and 4000 to 14,000 µM concentration ranges. Using chronocoulometry, the surface coverage of Co-Nd/Al 2 O 3 @fMWCNTs/GCE was calculated to be 1.37 × 10 −8 mol cm −2 . The fabricated Co-Nd/Al 2 O 3 @fMWCNTs/GCE demonstrated remarkable repeatability, with an RSD of 0.09%, and storage stability of 3 weeks, with 89.6% current retention. Lastly, it was found that Co-Nd/Al 2 O 3 @fMWCNTs/GCE worked well for EP analysis in a variety of biological fluids. Graphical abstract

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Interphase synthesis of colloidal magnetic cobalt nanoparticles

Cited by 3 publications

References 0 publications

Interfacial Synthesis: Morphology, Structure, and Properties of Interfacial Formations in Liquid–Liquid Systems

Interfacial Synthesis: Morphology, Structure, and Properties of Interfacial Formations in Liquid–Liquid Systems

Synthesis of cobalt, palladium, and rhenium nanoparticles

Voltammetric analysis of epinephrine using glassy carbon electrode modified with nanocomposite prepared from Co-Nd bimetallic nanoparticles, alumina nanoparticles and functionalized multiwalled carbon nanotubes

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