A reactor for generating DC plasma inside a liquid

IF 1.5 4区物理与天体物理 Q3 OPTICS

The European Physical Journal D Pub Date : 2024-05-04 DOI:10.1140/epjd/s10053-024-00843-5

Mingjia Zhang, Qingjin Tang, Binhong Wu, Xin Wang, Qiang Chen, Linsheng Liu

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引用次数: 0

Abstract

We present a plasma reactor able to generate DC discharge plasma inside an aqueous solution. The key point is that one wire electrode for the plasma generation is inside a capillary quartz tube, leaving a small gap between the electrode tip and the end of the capillary quartz tube. When the capillary quartz tube is immersed in an aqueous solution, a small gas gap is provided between the electrode tip and the solution. Discharge plasma can be generated at the gas gap, as applied DC voltage is beyond the gas breakdown voltage. As two examples among many possible applications, hydrogen peroxide and nitrate are synthesized from the plasma reactor with a flowing aqueous solutions of Na₂SO₄.

Graphical abstract

A plasma reactor is designed to generate DC discharge in an aqueous solution.
H₂O₂, nitrate and nitrite can be formed by the plasma inside the aqueous solution.

Abstract Image

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用于在液体内产生直流等离子体的反应器

我们介绍的等离子体反应器能够在水溶液中产生直流放电等离子体。其关键在于，用于产生等离子体的一个金属丝电极位于毛细石英管内，电极尖端与毛细石英管末端之间留有一个小间隙。当毛细石英管浸入水溶液中时，电极尖端和溶液之间就会产生一个很小的气隙。当施加的直流电压超过气体击穿电压时，就会在气隙处产生放电等离子体。在许多可能的应用中，过氧化氢和硝酸盐就是从等离子体反应器与流动的 Na2SO4 水溶液中合成的。

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来源期刊

The European Physical Journal D 物理-物理：原子、分子和化学物理

CiteScore

3.10

自引率

11.10%

发文量

213

审稿时长

3 months

期刊介绍： The European Physical Journal D (EPJ D) presents new and original research results in: Atomic Physics; Molecular Physics and Chemical Physics; Atomic and Molecular Collisions; Clusters and Nanostructures; Plasma Physics; Laser Cooling and Quantum Gas; Nonlinear Dynamics; Optical Physics; Quantum Optics and Quantum Information; Ultraintense and Ultrashort Laser Fields. The range of topics covered in these areas is extensive, from Molecular Interaction and Reactivity to Spectroscopy and Thermodynamics of Clusters, from Atomic Optics to Bose-Einstein Condensation to Femtochemistry.