The Influence of an External Uniform Magnetic Field on the Process of Synthesis of Fe2O3 Nanoparticles in the Plasma of an Impulse Underwater Discharge

IF 2.6 3区物理与天体物理 Q3 ENGINEERING, CHEMICAL

Plasma Chemistry and Plasma Processing Pub Date : 2024-02-23 DOI:10.1007/s11090-024-10458-8

Sirotkin Nikolay, Korolev Victor

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Abstract

The work provides a study of the effects of an external uniform magnetic field on the underwater pulsed discharge burning process. The presence of a magnetic field affects the waveforms of current and voltage, resulting in a decrease in amplitude values and frequency of discharge pulses. The presence of an external magnetic field was found to affect processes of the synthesis of iron oxide powders. Different polymorphic modifications of Fe₂O₃ were obtained depending on the orientation of the magnetic field. The formation of larger iron oxide nanoparticles is facilitated by the magnetic field. The release of desublimation energy, accompanied by heating, encourages the increasing the degree of crystallinity of samples in the presence of a magnetic field. Shown, that the presence of an external magnetic field has significant effects on the underwater pulsed discharge process, altering the electrical properties of the discharge and influencing the synthesis of oxide nanoparticles.

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外部均匀磁场对脉冲水下放电等离子体中合成 Fe2O3 纳米粒子过程的影响

这项工作研究了外部均匀磁场对水下脉冲放电燃烧过程的影响。磁场的存在会影响电流和电压的波形，导致放电脉冲的振幅值和频率降低。研究发现，外部磁场的存在会影响氧化铁粉末的合成过程。根据磁场方向的不同，Fe2O3 会产生不同的多晶体变化。磁场促进了较大氧化铁纳米颗粒的形成。伴随着加热，解升华能量的释放促进了样品在磁场作用下结晶度的提高。结果表明，外部磁场的存在对水下脉冲放电过程有重大影响，改变了放电的电特性，并影响了氧化物纳米粒子的合成。

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来源期刊

Plasma Chemistry and Plasma Processing 工程技术-工程：化工

CiteScore

5.90

自引率

8.30%

发文量

审稿时长

6-12 weeks

期刊介绍： Publishing original papers on fundamental and applied research in plasma chemistry and plasma processing, the scope of this journal includes processing plasmas ranging from non-thermal plasmas to thermal plasmas, and fundamental plasma studies as well as studies of specific plasma applications. Such applications include but are not limited to plasma catalysis, environmental processing including treatment of liquids and gases, biological applications of plasmas including plasma medicine and agriculture, surface modification and deposition, powder and nanostructure synthesis, energy applications including plasma combustion and reforming, resource recovery, coupling of plasmas and electrochemistry, and plasma etching. Studies of chemical kinetics in plasmas, and the interactions of plasmas with surfaces are also solicited. It is essential that submissions include substantial consideration of the role of the plasma, for example, the relevant plasma chemistry, plasma physics or plasma–surface interactions; manuscripts that consider solely the properties of materials or substances processed using a plasma are not within the journal’s scope.