Glow discharge plasma electrolysis for nanoparticles synthesis

Kareem, T. Abdul; Kaliani, A. Anu

doi:10.1007/s11581-011-0639-y

Cited by 67 publications

(45 citation statements)

References 76 publications

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“…When the metal as the evaporative source is replaced with a precursor compound for decomposition, then the gas-phase condensation is termed a chemical vapor condensation or chemical vapor synthesis. For flame pyrolysis, the gaseous or liquid precursors are decomposed by a combustion reaction [170]. The negligible vapor pressure of (room temperature) ILs allows to introduce RT-ILs in methods requiring vacuum conditions.…”

Section: Gas-phase Synthesismentioning

confidence: 99%

“…In ionic liquid glow discharge electrolysis (IL-GDE) the discharge is initiated in the gas in between the metal electrode and the ionic liquid solution. The technique is also named plasma electrochemical deposition (PECD) [155,156,170] at the interface of plasma and ionic liquid, or gas-liquid interfacial discharge plasmas (GLIDPs) [177]. The plasma is regarded as an electrode because of the deposition of the materials at the interface of ionic liquid and plasma.…”

Section: -By Plasma Deposition Glow Discharge (Plasma) Electrolysismentioning

confidence: 99%

“…The plasma is regarded as an electrode because of the deposition of the materials at the interface of ionic liquid and plasma. In IL-GDE the precursor material dissolved in IL is reduced with free electrons from the plasma [170,178]. Table 2 summarizes metal nanoparticles which were obtained by IL-GDE.…”

Section: -By Plasma Deposition Glow Discharge (Plasma) Electrolysismentioning

confidence: 99%

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Ionic Liquids for the Synthesis and Stabilization of Metal Nanoparticles

Janiak

2013

Zeitschrift Für Naturforschung B

131

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The synthesis and stabilization of metal nanoparticles (M-NPs) from metals, metal salts, metal complexes and metal carbonyls in ionic liquids (ILs) is reviewed. The electrostatic and steric properties of ionic liquids allow for the stabilization of M-NPs without the need of additional stabilizers, surfactants or capping ligands. The synthesis of M-NPs in ILs can be carried out by chemical or electroreduction, thermolysis and photochemical methods including decomposition by microwave or sono-/ultrasound irradiation. Gas-phase syntheses can use sputtering, plasma/glow-discharge electrolysis and physical vapor deposition or electron beam and γ-irradiation. Metal carbonyl precursors M x (CO) y contain the metal atoms already in the zero-valent oxidation state needed for M-NPs so that no extra reducing agent is necessary. Microwave-induced thermal decomposition of precursors in ILs is a rapid and energy-saving access to M-NPs because of the significant absorption efficiency of ILs for microwave energy due to their ionic charge, high polarity and high dielectric constant. M-NP/IL dispersions can be applied in catalytic reactions, e. g., in C-C coupling or hydrogenation catalysis.

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Section: Gas-phase Synthesismentioning

confidence: 99%

Section: -By Plasma Deposition Glow Discharge (Plasma) Electrolysismentioning

confidence: 99%

Section: -By Plasma Deposition Glow Discharge (Plasma) Electrolysismentioning

confidence: 99%

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Ionic Liquids for the Synthesis and Stabilization of Metal Nanoparticles

Janiak

2013

Zeitschrift Für Naturforschung B

131

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“…6 Recently, a solution plasma was applied in the synthesis of nanoparticles. 7 Gold nanoparticles were synthesized from the solution of HAuCl 4 . 8,9 Paulmier et al report the synthesis of TiO 2 nanorods using contact glow discharge electrolysis.…”

Section: Introductionmentioning

confidence: 99%

Surface morphology of a glow discharge electrode in a solution

Saito

Hosokai

Tsubota

et al. 2012

Journal of Applied Physics

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Phase-field modeling of three-phase electrode microstructures in solid oxide fuel cells Appl. Phys. Lett. 101, 033909 (2012) Dynamic modelling and simulation of a polymer electrolyte membrane fuel cell used in vehicle considering heat transfer effects J. Renewable Sustainable Energy 4, 043107 (2012) Colloidal electroconvection in a thin horizontal cell. III. Interfacial and transient patterns on electrodes J. Chem. Phys. 137, 014504 (2012) Use of magnetite as anode for electrolysis of water J. Appl. Phys. 111, 124911 (2012) Additional information on J. Appl. Phys. This paper describes the surface morphology of a glow discharge electrode in a solution. In the experiments detailed in the paper, the effects of electrolysis time, solution temperature, voltage, electrolyte concentration, and surface area on the size of nanoparticles formed and their amount of nanoparticles produced were examined to study the surface morphologies of the electrodes. The results demonstrated that the amount of nanoparticles produced increased proportionally with the electrolysis time and current. When the voltages were below 140 V, surfaces with nanoparticles attached, called "Particles" type surfaces, were formed on the electrode. These surfaces changed and displayed ripples, turning into "Ripple" type surfaces, and the nanoparticle sizes increased with an increase in the amount of nanoparticles produced. In contrast, at voltages over 160 V, the surfaces of the electrodes were either "Random" or "Hole" type and the particle sizes were constant at different amount of nanoparticles produced. V C 2012 American Institute of Physics.

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“…This discharge is classified as a CGDE. 1 As mentioned above, GDE and CGDE have been applied for nanoparticles synthesis and water treatment. However, the plasma-liquid interaction is still not well understood owing to the complex and dynamic nature of the plasma-liquid interface.…”

mentioning

confidence: 99%

High-speed camera observation of solution plasma during nanoparticles formation

Saito

Nakasugi

Akiyama

2014

Applied Physics Letters

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The direct-current discharge plasma during nanoparticles formation was observed using a high-speed camera. Metallic plates of Au, Ni, Ti, and Zn were used as a cathode, and a Pt wire was used as an anode. Both electrodes were immersed in a 0.1M NaOH solution. The solution plasma with light emission was generated via the vapor layer surrounding the cathode by applying 190 V. The current concentration occurred at a certain point of the electrode surface, in which the electrode surface was partially melted to produce nanoparticles. According to the high-speed observation, many light-emitting points appeared on the metallic plate and immediately disappeared when a certain point was strongly heated to produce nanoparticles. Additionally, light emission points moved in a chain reaction; after the first emission point was generated, the next emission point tended to be generated in the space surrounding the first emission point. During electrolysis, holes were generated on the cathode. The current concentration strongly heated certain spots on the electrode, and the electrode momentarily melted or vaporized, resulting in the formation of nanoparticles

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Glow discharge plasma electrolysis for nanoparticles synthesis

Cited by 67 publications

References 76 publications

Ionic Liquids for the Synthesis and Stabilization of Metal Nanoparticles

Ionic Liquids for the Synthesis and Stabilization of Metal Nanoparticles

Surface morphology of a glow discharge electrode in a solution

High-speed camera observation of solution plasma during nanoparticles formation

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