【摘要】 本文以多晶铂-10%铑丝为催化剂,将CW CO₂激光束通过热丝圈使氨分子激发,研究了氨的激光复相催化氧化反应的动力学,在热丝温度为525——602K范围内,测得该反应的动力学方程式为v=k_LP_NH3·Po₂^1/2,在激光辐照下的表观活化能为15Kcal/mole,比单纯热反应降低了10Kcal/mole。此外,曾以10.6μmR（40）支线的CW CO₂激光选择性激发¹⁵NH₃,控制Pt-Rh丝在反应阈值温度（225℃）时,利用上述反应对¹⁵NH₃和¹⁴NH₃进行了同位素分离,并获得初步的分离效果。更多还原

【Abstract】 The kinetics of the laser enhanced catalytic oxidation of ammonia on polycrys-talline Pt-10% Rh filament is reported with a CW CO₂ laser beam passing throughthe spirally wound filament to excite the gaseous NH₃ molecules. The reactionrate equation can be written as v = k_LP_NH3·Po₂^1/2 and the apparent activationenergy is found to be 15kcal/mole which is lower than that of the pure thermalcatalytic oxidation of ammonia（～10kcal/mole.） Application of this reaction to laserisotope separation of nitrogen is discussed.更多还原