Measurement of the rate of ozone formation in an ozonizer
Measurement of the rate of ozone formation in an ozonizer
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臭氧发生器中臭氧形成速率的测量
DOI：
10.1051/jcp/1982790655
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发表时间：
1982
期刊：
影响因子：
--
通讯作者：
S. Okazaki
中科院分区：
文献类型：
--
作者：
H. Sugimitsu;S. Okazaki
利用自行研制的单脉冲放电系统，直接测量了1个大气压下氧气中无声放电的臭氧生成速率。通过观察254 nm光的紫外吸收，光电跟踪放电脉冲后臭氧浓度的时间依赖性。测得准一级速率常数k* = 1.2 × 10 5秒-1。这一结果远低于O +2 O2 → O3 + O2反应三级速率常数的预测值。一个可能的解释是，一个被激发的氧分子是臭氧的直接前体。对该过程的速率常数进行了估算。
The rate of ozone formation in silent electric discharge in oxygen at 1 atm was measured directly by a single-pulse discharge system, which was developed in this work. The time dependence of ozone concentration after a discharge pulse was followed photoelectrically by observing the UV absorption of 254 nm light. The pseudo first-order rate constant, k* = 1.2 x 10 5 sec —1 , was obtained. It was much lower than the value predicted from the third-order rate constant for the reaction O + 2O 2 → O 3 + O 2 .Various mechanisms were examined to elucidate the results. A possible explanation proposed involves a excited oxygen molecule as a direct precursor to ozone. The rate constant for such a process was estimated.