作　　者： ; ; (严宗诚）; (王红林）;

机构地区： 华南理工大学化学与化工学院

出　　处： 《科技导报》 2010年第5期77-81,共5页

摘　　要： 以正丙醇溶液为原料进行辉光放电等离子体电解的实验研究。利用GC-MS联用仪,GC及光发射光谱等检测手段对辉光放电电解的气液相产物进行分析。实验结果表明:电解的主要产物有氢气、一氧化碳、甲烷、乙烷、丙烷、丁烷、水、二氧化碳、甲醛、苯及甲苯等。各种气体产物和产量受放电电压、放电电流等因素影响明显。在等离子体层中正丙醇分解过程和其他类型的等离子体分解过程类似。蒸汽鞘层中的加速电子是引发辉光放电过程非法拉第定律现象的决定因素。阴极辉光放电过程中等离子体-溶液界面上的主要活性物种是中性粒子和电子。正丙醇阴极辉光放电过程中等离子体-溶液界面上产生的主要活性物种有C3H3,CO+,CH,CH2O,H,H2O+,CH2和H2O。利用键能理论对正丙醇溶液放电后主要产物的生成路径进行了分析。 The glow discharge plasma electrolysis of 1-propanol solutions is studied in this paper by GC-MS, GC and optical emission spectroscopy. It is shown that the gas and liquid products of the reactions induced by the glow discharge plasmas mainly include hydrogen, monoxide, methane, ethane, propane, butane, water, carbon dioxide, formaldehyde, benzene, and toluene. The kinds of the gas products and the yields of the products are mainly affected by the discharge voltage and discharge current. The decomposition of 1-propanol molecules is induced by the glow discharge plasmas around the discharge electrode, similar to those induced by the corona plasmas and dielectric discharge plasmas. Non-faradic phenomena related with the glow discharge electrolysis of the 1-propanol solutions are caused by the accelerated electrons within the gas sheath around the discharge electrode. Reactive species and electrons excite the 1-propanol molecules on the plasma-electrolyte interface during the cathodic glow discharge, and meanwhile some reactive species are produced. The reactive species mainly contain C3H3, CO^＋, CH, CH20, H, H2O^＋, CH2 and H2O. The bond energy theory is used to analyze the generating paths of the main products.

关 键 词： 正丙醇 光发射光谱 等离子体电解

领　　域： [理学] [理学]