EFFECT OF NITROGEN ON OXYGEN PHOTOLYSIS AT 214 NM

被引：20

作者：

HOROWITZ, A ^{[1
]}

SCHNEIDER, W ^{[1
]}

MOORTGAT, GK ^{[1
]}

机构：

[1] MAX PLANCK INST CHEM,DEPT ATMOSPHER CHEM,SAARSTR 22,W-6500 MAINZ,GERMANY

来源：

JOURNAL OF PHYSICAL CHEMISTRY | 1990年 / 94卷 / 07期

关键词：

D O I：

10.1021/j100370a032

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The effect of nitrogen, 0-1200 Torr, on ozone formation in the 214-nm photolysis of oxygen, 125-300 Torr, was investigated. Addition of nitrogen was found to enhance the rate of ozone generation. This observation can be rationalized in terms of the effect of nitrogen on oxygen absorbance in the Herzberg continuum. For the pressure dependence of oxygen absorption cross sections given by σO2 = σ0 + αPO2 + βPN2 , a β/α value of 0.49 ± 0.07 (2σ) is derived, indicating that the self-effect of oxygen pressure on its absorbance and photodissociation is considerably more pronounced than the effect of nitrogen. This result is utilized for the estimation of the combined pressure effect of nitrogen and oxygen pressure on the stratospheric absorption cross sections of oxygen. © 1990 American Chemical Society.

引用

页码：2904 / 2907

页数：4

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