制备了单组分 Na/、W/、Mn/Si O2 催化剂 ,在 ITD(Ion Trap Detector)装置上进行了催化剂表面晶格氧脱附前后的甲烷恒温脉冲反应 (CH4- CTPR) .研究结果表明 ,Na/Si O2 表面晶格氧具有一定的 C2 烃选择性 ,并能强烈抑制 CO2 的生成 ;W/Si O2 表面晶格氧对 C2 烃的选择性较差 ,但对 COx 具有高的选择性 ;Mn/Si O2 表面的晶格氧对 C2 H4和 CO具有高选择性 ,而较深部位的晶格氧则对 C2 H6和 CO2 具有高的选择性 A one-component Na / W / Mn / Si O2 catalyst was prepared and CH4-CTPR was performed before and after lattice oxygen desorption on the Ion Trap Detector (ITD) , The lattice oxygen of Na / Si O2 has a certain C2 hydrocarbon selectivity and strongly inhibits the formation of CO2; the lattice oxygen on the W / Si O2 surface is less selective for C2 hydrocarbons but has a higher selectivity for COx ; Lattice oxygen on the Mn / Si O2 surface has high selectivity to C2 H4 and CO, while lattice oxygen in deeper sites has high selectivity to C2 H6 and CO2