Direct synthesis of nanostructural and nanospherical silica using induction jet levitation: synthesis, design and catalytic application

Vorotyntsev, Andrey V.; Марков, А. Н.; Kapinos, Alexander A.; Petukhov, Anton N.; Atlaskin, Artem A.; Golovacheva, Anna A.; Vilkov, I.V.; Yunin, P. A.; Воротынцев, В. М.; Воротынцев, И. В.

doi:10.1016/j.mtchem.2022.101004

Cited by 2 publications

(1 citation statement)

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“…The induction flow levitation method, as described in references [ 24 , 25 , 26 ], is an aerosol gas phase technique in which nanoparticles form from atoms evaporated from a levitating molten state. This non-contact heating method enables the attainment of higher purity compared to using crucibles [ 27 , 28 ], where the molten metal’s interaction with the crucible material can introduce impurities.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Zinc Nanoparticles by the Gas Condensation Method in a Non-Contact Crucible and Their Physical–Chemical Characterization

Markov,

Kapinos,

Petukhov

et al. 2024

Nanomaterials

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This work explored the zinc nanoparticles obtained by the one-stage induction flow levitation method. A 10 kW tube generator with an operating frequency of 440 kHz was used. The process used 8 mm diameter zinc granules (2 g weight) with a purity of 99.9%. Zinc wire was fed to replace the evaporated metal from the granule surface. This method productivity was 30 g/h of nanoparticles. In addition, various methods were used to characterize the resulting nanoparticles: scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-Ray fluorescence analysis (XRF), dynamic light scattering (DLS), porosimetry and inductively coupled plasma atomic emission spectroscopy (ICP-MS). The resulting nanoparticle size, determined by SEM and porosimetry, was 350 nm, while the size of the primary crystallites was 21 nm. The amount of impurities in the resulting nanoparticles did not exceed 1000 ppm.

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Section: Introductionmentioning

confidence: 99%

Synthesis of Zinc Nanoparticles by the Gas Condensation Method in a Non-Contact Crucible and Their Physical–Chemical Characterization

Markov,

Kapinos,

Petukhov

et al. 2024

Nanomaterials

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Growth Processing and Strategies: A Way to Improve the Gas Sensing Performance of Nickel Oxide-Based Devices

Ben Arbia,

Comini

2024

Chemosensors

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The review paper provides a comprehensive analysis of nickel oxide (NiO) as an emerging material in environmental monitoring by surveying recent developments primarily within the last three years and reports the growth processing and strategies employed to enhance NiO sensing performance. It covers synthesis methods for pristine NiO, including vapor-phase, liquid-phase, and solution-processing techniques, highlighting advantages and limitations. The growth mechanisms of NiO nanostructures are explored, with a focus on the most recent research studies. Additionally, different strategies to improve the gas sensing performance of NiO are discussed (i.e., surface functionalization by metallic nanoparticles, heterostructure formation, carbon-based nanomaterials, and conducting polymers). The influence of these strategies on selectivity, sensitivity, response time, and stability of NiO-based sensors is thoroughly examined. Finally, the challenges and future directions that may lead to the successful development of highly efficient NiO-based gas sensors for environmental monitoring are introduced in this review.

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Direct synthesis of nanostructural and nanospherical silica using induction jet levitation: synthesis, design and catalytic application

Cited by 2 publications

References 38 publications

Synthesis of Zinc Nanoparticles by the Gas Condensation Method in a Non-Contact Crucible and Their Physical–Chemical Characterization

Synthesis of Zinc Nanoparticles by the Gas Condensation Method in a Non-Contact Crucible and Their Physical–Chemical Characterization

Growth Processing and Strategies: A Way to Improve the Gas Sensing Performance of Nickel Oxide-Based Devices

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