Physicochemistry of the plasma-electrolyte solution interface
Physicochemistry of the plasma-electrolyte solution interface
复制标题
DOI：
10.1016/j.tsf.2007.11.051
复制
发表时间：
2008-08-01
期刊：
影响因子：
2.1
通讯作者：
Shirai, Hajime
中科院分区：
文献类型：
--
作者：
Chen, Qiang;Saito, Kenji;Shirai, Hajime
在不同的pH值下，采用NaOH或HCl电解质溶液作为对电极，成功地研究了大气压射频等离子体放电。溶液组分的发射强度、自偏压和电子密度强烈依赖于电解质的pH值。向电解质溶液中添加乙醇增强了脱水，这显著促进了溶液组分以及电子从溶液中的发射。在等离子体暴露后总是观察到溶液的酸化，并提出了两种共存的机制来给出合理的解释。基于氢循环模型讨论了等离子体-电解质界面。(C)2007 Elsevier B. V.保留所有权利。
The atmospheric rf plasma discharge was successfully investigated using NaOH or HCl electrolyte solutions as a counter electrode at different pH values. The emission intensities of solution components, self bias, and electron density strongly depend on the pH value of electrolyte. An addition of ethanol to the electrolyte solutions enhanced the dehydration, which markedly promoted the emissions of solution components as well as electrons from the solution. An acidification of the solution was always observed after the plasma exposure and two coexisting mechanisms were proposed to give a reasonable interpretation. The plasma-electrolyte interface was discussed based on a model of hydrogen cycle. (C) 2007 Elsevier B.V. All rights reserved.