摘要
用快速流动—共振荧光法测得室温下OH与N_2O反应速率常数k_4=(1.59±0.10)×10^(-14)cm^3molecule^(-1)s^(-1),在273—363K温度范围内K_4不随温度变化。OH是由氢原子与NO_2反应产生,反应管中总压力为532Pa。
The rate constants k_5 for the reaction of OH with N_2O have been determined in a fast-flow discharge system using the reaction of hydrogen atoms with NO_2 as the source of OH. The decay of OH in excess N_2O 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. k_5=(1.59+1.06)×10^(-14)cm^3molecule^(-1)s^(-1)at 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
