Sn—Mo混合氧化物的结构与催化性能

摘要

cqvip:The correlation between the catalytic activity and structure of Sn0.8Mo0.2 mixedoxides calcinated at diffrent temperatures has been investigated by using ESR, XPS and XRDtechniques. The results show that at 100～300 ℃ molybdenum disperses on the surface ofrutile-type stannic oxide formed at 100℃, at 300～500℃ it gradually diffuses into SnO2 andat 550℃ the interstitial solid solution forms, which exhibites the best catalytic activity inoxidation of butene. The substitution solid solution forms at 600℃.