Atmospheric DC Glow Microplasmas Using Miniature Gas Flow and Electrolyte Cathode
Atmospheric DC Glow Microplasmas Using Miniature Gas Flow and Electrolyte Cathode
复制标题
DOI：
10.1143/jjap.48.036002
复制
发表时间：
2009-03
影响因子：
1.5
通讯作者：
N. Shirai;M. Nakazawa;S. Ibuka;S. Ishii
中科院分区：
文献类型：
--
作者：
N. Shirai;M. Nakazawa;S. Ibuka;S. Ishii
我们开发了一种新的方案，利用电解液阴极和微小气流的组合来产生大气直流辉光放电。以硫酸钠溶液为阴极，当间隙间隔为100-700微米时，获得了稳定的辉光放电。当电流达到15 mA时，间隙电压随电流的增加而增加，超过15 mA后，随着低压辉光放电的增加，间隙电压趋于恒定。硫酸钠溶液表面放电的局部沸腾始于15 mA。同时，在负发光区出现了一条强烈的钠原子线发射。当在环境空气中产生放电时，溶液的pH值降低。PH的降低归因于溶解在溶液中的氮氧化物的存在。
We developed a new scheme to generate atmospheric dc glow discharges with a combination of an electrolyte cathode and a miniature gas flow. Stable glow discharges were obtained for a gap separation of 100–700 µm with a cathode of a sodium sulfate solution. The gap voltage increased with increasing a current up to 15 mA, above which the voltage became constant as the low-pressure glow discharges. Local boiling by the discharge at the surface of the sodium sulfate solution began at 15 mA. At the same time, the emission of an intense sodium atomic line appeared in the negative glow region. The pH of the solution decreased when the discharge was generated in ambient air. The reduction of pH was attributed to the existence of nitrogen oxide, which dissolved in the solution.