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本文利用小功率连续波CO_2激光器作为工具,辐照NH_3+CH_3OH体系,分析了能量吸收的可能性和能量传递的基本过程;诱导合成了甲胺和马洛托品等化合物;定性地探讨了激光功率密度和工业催化剂对该引发反应的速率的影响,定量地研究了反应物配比,反应压力及能量吸收等因素对反应动力学量的作用。在实验的基础上,讨论了该激光引发化学反应的性质;并在此基础上建立了一个物理模型,在实验所达的范因内,由这个模型所计算出的化学反应速率常数随压力和吸收比能的变化与实验结果具有较好的一致性。
In this paper, the low-power continuous wave CO_2 laser was used as a tool to irradiate NH_3 + CH_3OH system, the possibility of energy absorption and the basic process of energy transfer were analyzed. The compounds such as methylamine and melatonin were induced and synthesized. Power density and the effect of industrial catalyst on the rate of the initiation reaction were investigated quantitatively to study the effect of reaction mixture ratio, reaction pressure and energy absorption on the reaction kinetics. On the basis of the experiment, the properties of the laser induced chemical reaction are discussed. Based on this, a physical model is established. Within the experimental range, the chemical reaction rate constant calculated by this model is proportional to the pressure and Absorption specific energy changes and experimental results have good consistency.