物理化学学报 >> 1997, Vol. 13 >> Issue (10): 938-941.doi: 10.3866/PKU.WHXB19971015

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XRD法研究CrO3与NaY、NaM分子筛的表面相互作用

祁学永,王娅娟,杨孔章   

  1. 山东教育学院化学系，济南 250013|山东大学胶体与界面化学研究所，济南 250100
  • 收稿日期:1997-01-14 修回日期:1997-04-15 发布日期:1997-10-15
  • 通讯作者:

XRD Studies on the Interaction between CrO3 and NaY、NaM Zeolites

Qi Xue-Yong,Wang Ya-Juan,Yang Kong-Zhang   

  1. Department of Chemistry,Shandong Institute of Education,Jinan 250013|Institute of Colloid and Interface Chemistry,Shandong University,Jinan 250100
  • Received:1997-01-14 Revised:1997-04-15 Published:1997-10-15
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关键词: X射线衍射法, 三氧化铬, NaY分子筛, NaM分子筛, 相互作用

Abstract:

CrO3/NaY and CrO3/NaM zeolite systems have been studied by X-ray diffraction (XRD). CrO3/NaY(or CrO3/NaM) samples with various amounts of CrO3 were prepared by mixing CrO3 and NaY(or NaM) in dry atmosphere, and by baking at 170 ℃ for 24 hours. The results showed that CrO3 could disperse spontaneously onto NaY, NaM zeolites as a non-crystalline layer during baking. The framework of NaY and NaM zeolites was destroyed by the dispersed CrO3 because of the strong surface interaction. The crystallinity of NaY(or NaM) decreased with the increase of CrO3 loading.

Key words: X-ray diffraction method, Chromium trioxide, Nay zeolite, NaM zeolite, Interaction