三、催化氧化的选择性和反应机理如前所述,烃类的氧化反应是包括大量相互平行和相互连串的反应步骤的复杂过程。多相催化剂的作用在于使烃分子与氧的反应只是在固相表面的吸附基之间发生,尽量减少气相均相氧化反应的进行。其次是控制表面的反应按所希望的途径和氧化的深度进行。因此催化氧化反应的选择性与催化剂的作用机理密切相关。在多相催化剂上,烃类的催化氧化反应分为完全 Third, the catalytic oxidation of the selectivity and reaction mechanism As mentioned earlier, the oxidation of hydrocarbons is a complex process that includes a large number of mutually parallel and interlinked reaction steps. The role of the heterogeneous catalyst is that the reaction of hydrocarbon molecules with oxygen occurs only between the adsorption sites on the solid surface and minimizes the progress of the vapor phase homogeneous oxidation reaction. The second is to control the reaction of the surface to the desired route and the depth of oxidation. Therefore, the selectivity of catalytic oxidation reaction is closely related to the mechanism of action of the catalyst. On heterogeneous catalysts, the catalytic oxidation of hydrocarbons is divided into complete