Nanoalloying of clusters of immiscible metals and the formation of bimetallic nanoparticles in the conditions of non-synchronous explosion of two wires

Первиков, А. В.; Suliz, K. V.; Лернер, М. И.

doi:10.1016/j.powtec.2019.11.003

Cited by 16 publications

(2 citation statements)

References 52 publications

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“…Bimetallic Al/Ag nanoparticles were obtained through the electrical explosion of twisted wires (EEW) of the corresponding metals in an argon atmosphere. Nanoparticles with an Al/Ag atomic ratio of 91:9 were obtained using the method described previously [ 43 ].…”

Section: Methodsmentioning

confidence: 99%

Antimicrobial Activity and Sorption Behavior of Al2O3/Ag Nanocomposites Produced with the Water Oxidation of Bimetallic Al/Ag Nanoparticles

et al. 2022

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The water oxidation of bimetallic Al/Ag nanoparticles has been shown to yield nanoscale structures whose morphology, phase composition and textural characteristics are determined by the synthesis conditions. Flower-like nanoscale structures with silver nanoparticles, with an average size of 17 nm, are formed in water at 60 °C. Under hydrothermal conditions at temperatures of 200 °C and a pressure of 16 MPa, boehmite nanoplatelets with silver nanoparticles, with an average size of 22 nm, are formed. The oxidation of Al/Ag nanoparticles using humid air at 60 °C and 80% relative humidity results in the formation of rod-shaped bayerite nanoparticles and Ag nanoparticles with an average size of 19 nm. The thermal treatment of nanoscale structures obtained at a temperature of 500 °С has been shown to lead to a phase transition into γ-Al2O3, while maintaining the original morphology, and to a decrease in the average size of the silver nanoparticles to 12 nm and their migration to the surface of nanoscale structures. The migration of silver to the nanoparticle surface influences the formation of a double electric layer of particles, and leads to a shift in the pH of the zero-charge point by approximately one, with the nanostructures acquiring pronounced antimicrobial properties.

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Section: Methodsmentioning

confidence: 99%

Antimicrobial Activity and Sorption Behavior of Al2O3/Ag Nanocomposites Produced with the Water Oxidation of Bimetallic Al/Ag Nanoparticles

et al. 2022

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“…Al and Al/Ag nanoparticles were obtained by the electrical explosion of Al wires and twisted Al and Ag wires, respectively, in an argon atmosphere according to the methods reported previously [43,44]. The Al/Ag ratio of the bi-metallic nanoparticles was determined by the ratio of metals in the exploded wires.…”

Section: Preparation Of Al and Al/ag Nanoparticlesmentioning

confidence: 99%

Formation and Antibacterial Activity of AlOOH/Ag Composite Coating on Macroporous α-Al2O3 Ceramics

et al. 2022

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In this study, the modification of macroporous α-Al2O3 ceramics with AlOOH nanostructures impregnated with silver particles is carried out using bicomponent Al/Ag nanoparticles obtained by the simultaneous electrical explosion of Al and Ag wires. Nanoparticle suspension impregnation of porous ceramics followed by oxidation with water is shown to lead to the formation of a continuous AlOOH nanosheet coating on the ceramic surface, with silver releasing on the surface of nanosheets in the form of individual particles sized 5–30 nm. Modified with AlOOH/Ag nanostructures, macroporous α-Al2O3 pellets with a diameter of 11 mm and a thickness of 5 mm show 100% efficiency for water purification from bacteria with a concentration of 105 CFU/mL for 7.5 min at a flow rate of 6.7 mL/min.

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Perspective Future Development of Nanomaterials

Siddique

Numan

2020

Engineering Materials

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Nanoalloying of clusters of immiscible metals and the formation of bimetallic nanoparticles in the conditions of non-synchronous explosion of two wires

Cited by 16 publications

References 52 publications

Antimicrobial Activity and Sorption Behavior of Al2O3/Ag Nanocomposites Produced with the Water Oxidation of Bimetallic Al/Ag Nanoparticles

Antimicrobial Activity and Sorption Behavior of Al2O3/Ag Nanocomposites Produced with the Water Oxidation of Bimetallic Al/Ag Nanoparticles

Formation and Antibacterial Activity of AlOOH/Ag Composite Coating on Macroporous α-Al2O3 Ceramics

Perspective Future Development of Nanomaterials

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