La_2O_3/Y沸石上La_2O_3与Y型沸石载体的相互作用

The Interaction Between La_2O_3 and Y Zeolite on La_2O_3/Y

用X射线衍射法 (XRD)和骨架红外光谱法 (IR)研究了La2 O3 /Y沸石上La2 O3 与Y型沸石的相互作用 .结果表明 :La2 O3 在Y型沸石上自发分散 ,且分散阈值较高 ;La2 O3 的引入对载体的结构具有破坏作用 ,且随负载量的增大骨架破坏得越厉害 ;La2 O3 负载过程中有部分La进入骨架内部 .

The interaction between La_2O_3 and Y zeolite on La_2O_3/Y was investigated using XRD and IR methods. The results showed that La_2O_3 could disperse spontaneously on Y zeolite and the limiting value was high. The structure of Y zeolite was destroyed with the loading of La_2O_3. The more La_2O_3, the more structure was destroyed. Some La intercalated into the framework when loading.