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OH与N2O反应速率及其与温度的关系

The Rate Constant for the Reaction of OH with N2O and Its Temperature Dependence

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【作者】 王守志李学初楼南泉

【Author】 Wang Shouzhi LiXuechu Lou Nanquan (Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Laboratory of Molecular Reaction Dynamics)

【机构】 中国科学院大连化学物理研究所分子反应动力学国家重点实验室中国科学院大连化学物理研究所分子反应动力学国家重点实验室 大连 116012大连 116012大连 116012

【摘要】 用快速流动—共振荧光法测得室温下OH与N2O反应速率常数k4=(1.59±0.10)×10-14cm3molecule-1s-1,在273—363K温度范围内K4不随温度变化。OH是由氢原子与NO2反应产生,反应管中总压力为532Pa。

【Abstract】 The rate constants k5 for the reaction of OH with N2O have been determined in a fast-flow discharge system using the reaction of hydrogen atoms with NO2 as the source of OH. The decay of OH in excess N2O at a total pressure of 4.0+0.1 torr in Ar as the carrier gas was followed by resonance fluorescence at 309.0 nm at temperatures from 273 to 363K in2.6-cm-diameter flow tube coated with boric acid. k5=(1.59+1.06)×10-14cm3molecule-1s-1at 293K and the rate constant was observed to be independent of temperature over the range studied.

【基金】 国家自然科学基金
  • 【文献出处】 化学物理学报 ,Chinese Journal of Chemical Physics , 编辑部邮箱 ,1993年01期
  • 【下载频次】26
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