Properties of zinc‐oxide nanoparticles synthesized by electrical‐discharge technique in liquids

Тарасенко, Н. В.; Nevar, Alena A.; Nedelko, Mikhail

doi:10.1002/pssa.200925635

Cited by 17 publications

(8 citation statements)

References 17 publications

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“…The possibility of synthesis of zinc oxide particles doped with nitrogen and indium atoms in the discharge between zinc and indium electrodes immersed into a 0.001 М aqueous solution of ammonium nitrate was demonstrated in [60]. Doped ZnO nanocrystals showed a slight shift of diffraction peaks because of insertion of admixture atoms.…”

Section: Metal Oxide Nanoparticlesmentioning

confidence: 98%

Synthesis and modification of molecular nanoparticles in electrical discharge plasma in liquids

et al. 2015

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A review of studies on the synthesis and modification of nanosized particles by electrical discharges in liquid media is presented. The modern understanding of the mechanisms of initiation and features of discharge evolution in liquids are analyzed. By using of the spectroscopic diagnostics, parameters of the discharge plasma in liquids (water, ethanol) are determined. It is shown that the pulsed electrical discharge between electrodes immersed in a nonconducting or weakly conducting liquid, provides a simple and effective method for the synthesis of nanoparticles of different compositions with the average size ranging from 5 to 50 nm. The morphology, phase structure, and composition of the particles formed are defined by the discharge mode and composition of the liquid medium in which the discharge is produced. The conditions for the synthesis of nanosized metal oxides, carbides, and silicides (for example, copper and zinc oxides, titanium and tungsten carbides, gadolinium silicides) were found. Zinc oxide nanoparticles were produced in pulsed electrical discharge plasma in distilled water, and the possibility of their doping with nitrogen atoms during synthesis was demonstrated. Experimental results on the modification of tungsten and copper powders by spark discharge in ethanol are discussed. The possibility to synthesize copper chalcogenides CuInSe 2 by electrical discharge treatment of a mixture of copper, indium, and selenium powders was demonstrated.wide range of nanomaterials (metals and intermetallics, nitrides, metal oxides and carbides, composite materials).Electrical discharge in liquids is accompanied by a complex of physical and chemical phenomena, including shock wave generation, cavitation processes, formation of a vapor-gas bubble and its pulsation, ionization and decomposition of liquid molecules in the plasma channel and around it, intense UV and sound radiation, and pulsed electric and magnetic fields. These processes generate free radicals, singlet oxygen, ozone, and hydrogen peroxide. Furthermore, electrode erosion results in release into the liquid of atoms and ions of the electrode materials. These excited or ionized particles take part in diverse physicochemical processes that affect the liquid and objects placed in it. A great variety of compounds, including metastable ones, can form in the plasma channel. Nanoparticles are formed by chemical reactions of atoms and ions released from electrodes with the decomposition products of the surrounding liquid.

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Section: Metal Oxide Nanoparticlesmentioning

confidence: 98%

Synthesis and modification of molecular nanoparticles in electrical discharge plasma in liquids

et al. 2015

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“…Ag NP-embedded mesoporous silica was also produced via solution plasma [90,92], for use in catalysis. Tarasenko et al also reported using electric discharge techniques in water for NP synthesis, in which the peak current was 60 A, and AC, DC, and pulsed power sources were used [112][113][114]. C 60 fullerenes and carbon nanotubes (CNTs) were also produced by electric discharges in liquid toluene [105,107].…”

Section: Direct Discharge Between Twomentioning

confidence: 99%

“…ii-1: electric discharge (DC pulsed) [82,112,114] (DC) [113], ii-4: solution plasma (DC pulsed) [126], ii-5: submerged arc discharge (DC) [134], iii-1: solution plasma (DC) [176,186], iv-4: MW plasma [230], and iv-5: MW plasma [233] Zn plate Solution iii-4: solution plasma (DC) [201] ZnO powder Solution ii-7: arc discharge (DC) [165] zinc acetate Solution iv-7: MW-induced plasma [236] ZrO [130], iv-3: RF plasma [226], and iv-5: MW plasma [234]…”

Section: Zn Rod Solutionmentioning

confidence: 99%

Nanomaterial Synthesis Using Plasma Generation in Liquid

Saito

Akiyama

2015

Journal of Nanomaterials

166

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Over the past few decades, the research field of nanomaterials (NMs) has developed rapidly because of the unique electrical, optical, magnetic, and catalytic properties of these materials. Among the various methods available today for NM synthesis, techniques for plasma generation in liquid are relatively new. Various types of plasma such as arc discharge and glow discharge can be applied to produce metal, alloy, oxide, inorganic, carbonaceous, and composite NMs. Many experimental setups have been reported, in which various parameters such as the liquid, electrode material, electrode configuration, and electric power source are varied. By examining the various electrode configurations and power sources available in the literature, this review classifies all available plasma in liquid setups into four main groups: (i) gas discharge between an electrode and the electrolyte surface, (ii) direct discharge between two electrodes, (iii) contact discharge between an electrode and the surface of surrounding electrolyte, and (iv) radio frequency and microwave plasma in liquid. After discussion of the techniques, NMs of metal, alloy, oxide, silicon, carbon, and composite produced by techniques for plasma generation in liquid are presented, where the source materials, reaction media, and electrode configurations are discussed in detail.

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“…If the synthesis of copper oxides and zinc oxide NPs by discharges in liquids have been amply investigated [11][12][13][14][15][16], the same is not true for core-shell structures and alloys. Panuthai et al [17] eroded copper-zinc (Cu-Zn) alloy electrodes with different copper contents (90Cu/10Zn and 65Cu/35Zn) by an arc discharge submerged in glycol, ethanol and deionized water.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Cu@ZnO core–shell nanoparticles by spark discharges in liquid nitrogen

Kabbara

Ghanbaja

Noël

et al. 2017

Nano-Structures & Nano-Objects

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Core-shell nanoparticles are synthesized by nanosecond-pulsed discharges in liquid nitrogen using a two-step process. In a first step, copper nanoparticles (resp. zinc nanosheets) are synthesized by eroding pure copper (resp. zinc) electrodes. In a second step, copper (resp. zinc) electrodes are removed and replaced by zinc (resp. copper) electrodes in the liquid loaded with copper nanoparticles (resp. zinc nanosheets). After erosion and air oxidation, once nitrogen has evaporated, Cu@ZnO core-shell nanoparticles are obtained in both configurations. The shell is always ZnO, because of the unusual formation of zinc nanosheets instead of zinc nanoparticles. When Cu electrodes are used first, copper nanoparticles are wrapped in ZnO nanosheets. When Zn electrodes are used first, copper nanoparticles hit zinc nanosheets and get coated to form also Cu@ZnO. In this latter case, Cu2O@ZnO are sometimes encountered too but to a much lesser extent. Copper oxidation is then attributed to a failure in the zinc protective shell. Time-resolved optical emission spectroscopy measurements reveal that Cu lines and Zn lines are never emitted simultaneously, the element in the liquid remaining outside the discharge area. If zinc nanosheets are synthesized first, N II lines are exclusively observed during the first 200 ns of discharges with copper electrodes, revealing for this process the possibility of highly energetic processes.

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Properties of zinc‐oxide nanoparticles synthesized by electrical‐discharge technique in liquids

Cited by 17 publications

References 17 publications

Synthesis and modification of molecular nanoparticles in electrical discharge plasma in liquids

Synthesis and modification of molecular nanoparticles in electrical discharge plasma in liquids

Nanomaterial Synthesis Using Plasma Generation in Liquid

Synthesis of Cu@ZnO core–shell nanoparticles by spark discharges in liquid nitrogen

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