Control of atmospheric glow discharge using liquid electrode and its application for plasma reactor

液体电极大气辉光放电控制及其在等离子体反应器中的应用

• 批准号: 21840042
• 负责人: SHIRAI Naoki
• 金额: $ 1.71万
• 依托单位: Tokyo Metropolitan University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Research Activity Start-up
• 财政年份: 2009
• 资助国家: 日本
• 起止时间: 2009 至 2010
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-21840042/
• 关键词: 大気圧グロー放電; マイクロプラズマ; 液体電極; 大気圧プラズマ; パルス放電

An atmospheric DC glow discharge using liquid (electrolyte : NaCl solution) electrodes and axial miniature helium flow was generated stably in ambient air. In the case of liquid cathode discharge, when the discharge current was increased further, yellow light emission which was originated from sodium atoms vaporized from the electrolyte surface was observed in the negative glow region. To examine the effect of temperature of liquid electrode, we controlled the electrolyte cathode temperature using injection type cooler or heater. The intensity of the sodium emission decreased with the refrigerated electrolyte cathode, while it increased with the heated electrolyte cathode. When we use pulse modulated DC voltage, the sodium emission appeared with a delay time from the start of the discharge, while the emission of nitrogen molecular lines appeared and reached their peaks immediately. The temperature of liquid cathode is important factor to control the plasma-liquid interaction from the discharges and to resolve the detailed mechanism of the electrolyte cathode discharges. When we use electrolyte as anode, self-organized anode patterns were observed on the liquid or metal surface when atmospheric dc glow discharge with helium flow is generated. The pattern formation depends on the current, gap length and helium flow rate.

采用液体（电解质：NaCl溶液）电极和轴向微型氦流在大气中稳定地产生了常压直流辉光放电。在液体阴极放电中，当放电电流进一步增大时，在负辉光区观察到由电解液表面蒸发的钠原子发出的黄光。为了考察液体电极温度的影响，我们采用注射式冷却器或加热器控制电解液阴极温度。钠的发射强度随电解液阴极的冷却而减小，随电解液阴极的加热而增大。当使用脉冲调制直流电压时，钠离子的发射从放电开始有延迟时间，而氮分子线的发射则立即出现并达到峰值。液体阴极的温度是控制放电过程中等离子体-液体相互作用的重要因素，也是解决电解液阴极放电详细机理的重要因素。当以电解液为阳极时，在氦流下大气直流辉光放电时，在液体或金属表面观察到自组织的阳极图案。图案的形成取决于电流、间隙长度和氦气流量。

项目成果

Influence of liquid temperature on the characteristics of atmospheric DC glow discharge using liquid electrode with miniature He flow

液体温度对微型氦流液体电极大气直流辉光放电特性的影响

• 发表时间: 2010
• 作者: 白井直機;一之瀬工資;橋爪裕介;内田諭;杤久保文嘉
• 通讯作者: 杤久保文嘉

Plasma-liquid interface phenomena of atmospheric DC glow discharge using liquid electrode

液体电极大气直流辉光放电的等离子体-液体界面现象

• 发表时间: 2011
• 作者: 白井直機;内田諭;杤久保文嘉
• 通讯作者: 杤久保文嘉

液体電極を用いた直流駆動大気圧グロー放電の液体の熱依存性

使用液体电极的直流驱动大气压辉光放电中液体的热依赖性

• 发表时间: 2010
• 作者: 白井直機;一之瀬工資;岩本直己;橋爪裕介;内田諭;杤久保文嘉;石井彰三;白井直機
• 通讯作者: 白井直機

Influence of liquid temperature on characteristics of atmospheric dc discharge using liquid electrode with miniature helium flow

液体温度对微型氦流液体电极大气直流放电特性的影响

• 发表时间: 2011
• 期刊: Plasma Sources Sci.Technol. Vol.20
• 作者: Naoki Shirai;Kosuke Ichinose;Satoshi Uchida;Fumiyoshi Tochikubo
• 通讯作者: Fumiyoshi Tochikubo

電解質溶液陰極放電のプラズマ-液体界面の熱の影響

电解质溶液阴极放电过程中热量对等离子体-液体界面的影响

• 发表时间: 2010
• 作者: 白井直機;一之瀬工資;橋爪裕介;内田諭;杤久保文嘉;白井直機
• 通讯作者: 白井直機