Productions of RONS with Duty Ratio in Atmospheric Pressure Plasma Jets

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

Plasma Chemistry and Plasma Processing Pub Date : 2024-06-25 DOI:10.1007/s11090-024-10487-3

Jun Sup Lim, Eun Ha Choi

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Abstract

In this work, the productions of reactive oxygen and nitrogen species (RONS) with duty ratio in atmospheric pressure plasma jet was studied. This study uses the duty ratio comprising an on-time duration with a sinusoidal voltage bunch and an off-time duration without any voltage bunch for the plasma jet operation. The reactive species NO, NO₂, N₂O, and O₃ were measured in the plasma jet in accordance with the duty ratio by gas-FTIR and ozone meter. The NO_x are the mainly produced in the plasma jet due to the high temperature, and all reactive species exhibited increased production when increasing the duty ratio. But, under the fixed duty-ratio of 10%, reactive species were different trends by the on-time duration. Although there was no additional dissipated power at a given duty ratio, NO production enhanced by 1.5 times, whereas the production of the other species decreased with increasing on-time duration. These phenomena were explained by measured rotational temperature with on-time in this experiment.

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大气压等离子体射流中随占空比变化的 RONS 生成情况

这项工作研究了常压等离子体射流中活性氧和氮物种（RONS）的生成与占空比的关系。本研究使用的占空比包括等离子体喷射运行时的正弦电压束导通时间和无任何电压束的断开时间。根据占空比，通过气体傅立叶变换红外和臭氧测量仪测量了等离子体射流中的活性物种 NO、NO2、N2O 和 O3。氮氧化物是等离子体射流中主要产生的物质，其产生量随占空比的增加而增加。但是，在 10% 的固定占空比条件下，反应物随通电时间的长短呈现出不同的趋势。虽然在给定的占空比下没有额外的耗散功率，但氮氧化物的生成量增加了 1.5 倍，而其他物种的生成量则随着通电时间的延长而减少。这些现象可以用本实验中随导通时间测量的旋转温度来解释。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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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.