Synthesis of nickel and cobalt oxide nanoparticles by pulsed underwater spark discharges

Merciris, Thomas; Valensi, Flavien; Hamdan, Ahmad

doi:10.1063/5.0040171

Cited by 26 publications

(14 citation statements)

References 71 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…and between electrodes of varying chemical nature (e.g., Al, Cu, Pt, Co, Ni, etc.) [ 25 , 26 , 27 , 28 ]. This has led to the production of a wide range of nanomaterials, including nanocomposites [ 27 , 29 ] and materials with novel crystallographic phases [ 30 , 31 ].…”

Section: Introductionmentioning

confidence: 99%

A Versatile Route for Synthesis of Metal Nanoalloys by Discharges at the Interface of Two Immiscible Liquids

Hamdan

Stafford

2022

Nanomaterials

View full text Add to dashboard Cite

Discharge in liquid is a promising technique to produce nanomaterials by electrode erosion. Although its feasibility was demonstrated in many conditions, the production of nanoalloys by in-liquid discharges remains a challenge. Here, we show that spark discharge in liquid cyclohexane that is in contact with conductive solution, made of a combination of Ni-nitrate and/or Fe-nitrate and/or Co-nitrate, is suitable to produce nanoalloys (<10 nm) of Ni-Fe, Ni-Co, Co-Fe, and Ni-Co-Fe. The nanoparticles are synthesized by the reduction of metal ions during discharge, and they are individually embedded in C-matrix; this latter originates from the decomposition of cyclohexane. The results open novel ways to produce a wide spectrum of nanoalloys; they are needed for many applications, such as in catalysis, plasmonic, and energy conversion.

show abstract

Section: Introductionmentioning

confidence: 99%

A Versatile Route for Synthesis of Metal Nanoalloys by Discharges at the Interface of Two Immiscible Liquids

Hamdan

Stafford

2022

Nanomaterials

View full text Add to dashboard Cite

show abstract

“…), between electrodes of varying chemical nature (Al, Cu, Pt, Co, Ni, etc. ), [47][48][49][50] a wide range of nanomaterials, including nanocomposites [49,51] and materials with novel crystallographic phases [52,53] can be synthesized.…”

Section: Introductionmentioning

confidence: 99%

Spark discharges in liquid heptane in contact with silver nitrate solution: Investigation of the synthesized particles

Mohammadi

Hamdan

2021

Plasma Processes & Polymers

Self Cite

View full text Add to dashboard Cite

In this study, spark discharges are generated in liquid heptane that is in contact with an immiscible solution of silver nitrate. The results demonstrate that the discharges produced at 22 kV voltage amplitude and 500 ns pulse width change the color of both liquids and lead to the formation of nanoparticles. Most particles collected from heptane are nanocomposites of Ag nanoparticles (<10 nm) in the hydrocarbon network. Meanwhile, the material collected from the silver nitrate solution is Ag nanoparticles (10–150 nm of diameter). At shorter pulse width (100 ns), the discharges generate similar materials in both liquids; however, the size distribution of these materials is smaller. Finally, a scenario of particle synthesis is proposed and discussed.

show abstract

“…They reported that by using this electrochemical advanced oxidation process, the decomposition efficiency of the azo dye carmoisine was 100% with a 60 min reaction time. In the case of nanoparticle generation, electrode erosion could be utilized as a source of material for nanoparticle production [8,[34][35][36]. Saito et al successfully produced nickel nanoparticles in a solution-plasma system under stable power supply conditions [34].…”

Section: Introductionmentioning

confidence: 99%

Pulsed Discharge Plasma in High-Pressure Environment for Water Pollutant Degradation and Nanoparticle Synthesis

Diono

Machmudah

Kanda

et al. 2021

Plasma

View full text Add to dashboard Cite

The application of high-voltage discharge plasma for water pollutant decomposition and the synthesis of nanoparticles under a high-pressure argon gas environment (~4 MPa) was demonstrated. The experiments were carried out in a batch-type system at room temperature with a pulsed DC power supply (15.4 to 18.6 kV) as a discharge plasma source. The results showed that the electrode materials, the pulsed repetition rates, the applied number of pulses, and the applied voltages had a significant effect on the degradation reactions of organic compounds. Furthermore, carbon solid materials from glycine decomposition were generated during the high-voltage discharge plasma treatment under high-pressure conditions, while Raman spectra and the HRTEM images indicated that titanium dioxide with a brookite structure and titanium carbide nanoparticles were also formed under these conditions. It was concluded that this process is applicable in practice and may lead to advanced organic compound decomposition and metal-based nanoparticle synthesis technologies.

show abstract

Synthesis of nickel and cobalt oxide nanoparticles by pulsed underwater spark discharges

Abstract: Note: This paper is part of the Special Topic on Plasma-Liquid Interactions.

Cited by 26 publications

References 71 publications

A Versatile Route for Synthesis of Metal Nanoalloys by Discharges at the Interface of Two Immiscible Liquids

A Versatile Route for Synthesis of Metal Nanoalloys by Discharges at the Interface of Two Immiscible Liquids

Spark discharges in liquid heptane in contact with silver nitrate solution: Investigation of the synthesized particles

Pulsed Discharge Plasma in High-Pressure Environment for Water Pollutant Degradation and Nanoparticle Synthesis

Contact Info

Product

Resources

About