Measurement of negative ion mobilities at atmospheric pressure in O2/O3 mixtures
Measurement of negative ion mobilities at atmospheric pressure in O2/O3 mixtures
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测量大气压下 O2/O3 混合物中的负离子迁移率
DOI：
10.1541/ieejfms1990.120.6_712
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发表时间：
2000
期刊：
影响因子：
--
通讯作者：
H. Itoh
中科院分区：
文献类型：
--
作者：
Takahisa Hayashi;H. Itoh
在以前的工作中，我们测量了负离子迁移率在O2在大气压下。得到的零场迁移率的$\hbox{O}^{-}_{2}$在O2中与Snuggs和同事的结果一致。然而，我们提到，随着漂移长度的增加，表观零场迁移率趋于小值。本文介绍了O_2/O_3混合气体中负离子迁移率的实验结果。在无声放电管中产生臭氧，臭氧浓度从10 ppm变化到1200 ppm。结果表明，随着臭氧浓度的增加，负离子迁移率变小。当臭氧在O2中混合超过10 ppm时，迁移率迅速下降。表观零场迁移率在300 ppm O3下为1.69 cm 2/V·s，在1200 ppm O3下为1.52 cm 2 V·s。在300至1200 ppm O3的范围内，表观零场迁移率随臭氧浓度的增加而线性下降。这表明团簇离子是由漂移空间中的一些离子-分子反应形成的。© 2001 Scripta Technica，Electr Eng Jpn，138（3）：26-33，2002
In a previous work, we measured the negative ion mobilities in O2 at atmospheric pressure. The obtained zero‐field mobility of $\hbox{O}^{-}_{2}$ in O2 agreed well with the results of Snuggs and co‐workers. However, we mentioned that the apparent zero‐field mobility tended to small values with increase of the drift length. This paper describes experimental results for the negative ion mobilities in O2/O3 mixtures. Ozone was generated in a silent discharge tube and the ozone concentration was varied from 10 ppm up to 1200 ppm. It was found that the negative ion mobilities become smaller with increases of the ozone concentration. When ozone was mixed above 10 ppm in O2, the mobility decreased rapidly. The apparent zero‐field mobility was 1.69 cm2/V·s at 300 ppm O3 and 1.52 cm2V·s at 1200 ppm O3. Within this range from 300 to 1200 ppm O3, the apparent zero‐field mobility decreased linearly with increases of the ozone concentration. This suggests that cluster ions are formed by some ion‐molecule reactions in the drift space. © 2001 Scripta Technica, Electr Eng Jpn, 138(3): 26–33, 2002