ZnO在NaY沸石表面的分散研究  

STUDY ON DISPERSION OF ZnO ON THE SURFACE OF NaY ZEOLITE

作　　者：汪跃民[1] 臧雅茹[1] 赵学庄[1] 缪方明[2] 王谨玲[2] 

机构地区：[1]南开大学化学系 [2]天津师范大学化学系

出　　处：《化学研究与应用》1997年第1期20-24,共5页Chemical Research and Application

基　　金：国家科学基金

摘　　要：利用ＸＲＤ、Ｒａｍａｎ光谱分析了影响ＺｎＯ在ＮａＹ表面分散的各种因素，发现延长干燥时间和多次浸渍能促进ＺｎＯ的分散，测得ＺｎＯ的最大分散量为０．４６ｇ／ｇＮａＹ，已远大于文献结果。与模型估算值进行了比较分析，探讨了ＺｎＯ在分子筛内表面的排布状态。The effect of various factors on the dispersion of ZnO on NaY surface has been studied by XRD and Raman spectroscopy.The utmost dispersion capacity of ZnO has been obtained through prolonged drying and by increasing the times of impregnation (0.46gZnO/gNaY),which is reasonably higher than the value of reference (0.22gZnO/gNaY).A selected distribution model has been employed to explore the distribution state of ZnO on NaY internal surface.The influence of ZnO dispersion on the structure stability of NaY has alsobeen investigated by XRD and IR spectroscopy.

关 键 词：催化剂 沸石 分子筛 分散模型 氧化锌 钆化钠 

分 类 号：TQ424.25[化学工程]