Preparation of NiO-CuO-MgO fine powders by ultrasonic spray pyrolysis for carbon nanofibers synthesis

Krasnikova, Irina V.; Mishakov, Ilya V.; Bauman, Yury I.; Karnaukhov, Timofey M.; Vedyagin, Aleksey A.

doi:10.1016/j.cplett.2017.06.036

Cited by 13 publications

(4 citation statements)

References 19 publications

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“…Depending on the temperature and duration of the droplet being in the hot zone, different particle size, shape, and morphology is formed. Interestingly, it was reported [11], that using not a pure compound as a solvent but a mixture of two compounds (for example, water and ethanol), made it possible to change the shape of obtained particles from spheres to flakes. It is proposed that not only surface tension of the solvent affects the mechanism of particle formation, but so do differences in the evaporation rate of the components of the solvent.…”

Section: Introductionmentioning

confidence: 99%

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The Size Dependence of Microwave Permeability of Hollow Iron Particles

Artemova

Maklakov

Osipov

et al. 2022

Sensors

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Hollow ferromagnetic powders of iron were obtained by means of ultrasonic spray pyrolysis. A variation in the conditions of the synthesis allows for the adjustment of the mean size of the hollow iron particles. Iron powders were obtained by this technique, starting from the aqueous solution of iron nitrate of two different concentrations: 10 and 20 wt.%. This was followed by a reduction in hydrogen. An increase in the concentration of the solution increased the mean particle size from 0.6 to 1.0 microns and widened particle size distribution, but still produced hollow particles. Larger particles appeared problematic for the reduction, although admixture of iron oxides did not decrease the microwave permeability of the material. The paraffin wax-based composites filled with obtained powders demonstrated broadband magnetic loss with a complex structure for lesser particles, and single-peak absorption for particles of 1 micron. Potential applications are 5G technology, electromagnetic compatibility designs, and magnetic field sensing.

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Section: Introductionmentioning

confidence: 99%

“…The spray pyrolysis enables one to obtain powders of metal oxides [11][12][13][14] and metals [10,[15][16][17] with a mean diameter from nanometers to micrometers [18]. It is possible to obtain solid or hollow metal oxide particles [10].…”

Section: Introductionmentioning

confidence: 99%

The Size Dependence of Microwave Permeability of Hollow Iron Particles

Artemova

Maklakov

Osipov

et al. 2022

Sensors

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“…Spray pyrolysis is one of the methods for fine particle production [1][2][3] and a droplet of precursor solution or slurry is a template of a produced particle. Many studies for development of fine particle production using the method have already been reported.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Ni base nanoparticles by W/O emulsion combustion

Kobayashi

Itaya

et al. 2019

J Nanostruct Chem

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To develop a process of fine particle production by spray pyrolysis, spray combustion of W/O (water-in-oil) emulsion, of which water phase was raw material solution and oil phase was fuel for heat source of high-temperature reaction field, was investigated. In this study, nickel oxide particles, which were a preliminary step of the nickel fine particle production, were synthesized and its structural characteristics were evaluated. Mixed solution of nickel nitrate and white kerosene was used as raw material. W/O emulsions were prepared using ultrasonic homogenizer and stirring these raw materials adding a surfactant. These emulsions were burning in a high temperature furnace to produce nickel oxide particles. The mean particle diameter of produced particles was less than 20 nm according to TEM observation. The diameter of the particles was much smaller than the estimated value based on the size distribution of dispersed solution phase in the emulsions and its concentration. Moreover, there is no effect of the concentration of the aqueous solution phase. On the other hand, X-ray diffraction pattern showed that the produced particles were complex of metal nickel with nickel oxide.

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“…Методы, включающие получение аэрозоля распылением раствора соответствующей соли, позволяют избежать таких стадий, как осаждение, отделение высокодисперсных частиц от жидкой фазы, предварительный обжиг и помол [8]. В работах [9][10][11] методом распылительного пиролиза как разновидности термогидролиза получены порошки MgO и показано, что использование данного метода позволяет контролировать условия образования твердых частиц и, следовательно, управлять морфологией и размерами частиц конечного порошкообразного продукта. Глицин-цитрат-нитратный метод, являющийся одним из разновидностей самораспространяющегося высокотемпературного синтеза (СВС), позволяет получить высокодисперсные порошки и характеризуется высокой производительностью [12][13][14].…”

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EFFECT OF PREPARATION METHOD ON PHYSICOCHEMICAL PROPERTIES OF NANOSTRUCTURED MgO POWDER

Мацукевич¹,

Крутько²,

Ovseenko³

et al. 2018

Vescì Akademìì navuk Belarusì. Seryâ himičnyh navuk

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Magnesium oxide is widely used as an adsorbent, catalyst, identifier of chemical and toxic pollutants, in water and gas purification processes. Mesoporous magnesium oxide powder has been synthesized by the method of deposition, spray pyrolysis and glycine-citrate-nitrate method, their crystal structure, microstructure, granulometric composition and adsorption properties have been studied. Optimal conditions for the production of magnesium oxide by the glycine-citrate-nitrate method have been determined, which make it possible to obtain a powder with average primary particle sizes of 12 nm and the smallest sizes of secondary particles starting from 70 nm. The influence of the method of obtaining nanostructured magnesium oxide powder on the physicochemical properties is established. High values of the total pore volume of 1.038 cm3 /g exhibited the MgO powder obtained by the precipitation method.

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Preparation of NiO-CuO-MgO fine powders by ultrasonic spray pyrolysis for carbon nanofibers synthesis

Cited by 13 publications

References 19 publications

The Size Dependence of Microwave Permeability of Hollow Iron Particles

The Size Dependence of Microwave Permeability of Hollow Iron Particles

Synthesis of Ni base nanoparticles by W/O emulsion combustion

EFFECT OF PREPARATION METHOD ON PHYSICOCHEMICAL PROPERTIES OF NANOSTRUCTURED MgO POWDER

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