在严格的动力学控制下研究了甲醇催化燃烧反应动力学本征特性.铂催化剂上甲醇催化燃烧由氧气在催化剂上的活化过程控制,催化燃烧速率受限于铂表面的活性氧原子浓度;甲醇催化燃烧速率等于氧气在催化剂表面上的活化速率,随氧气分压增加而线性增加而不依赖于甲醇的分压.催化燃烧反应速率常数随催化剂颗粒直径减小而降低,随铂原子配位数减小而降低,由于少部分活性组分更容易吸附在铂催化中低配位数的原子上限制了氧气的活化过程.在微量催化剂的协助下甲醇就能实现稳定的低温催化燃烧,因而能有效地改善微细燃烧器内燃烧特性.
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