引用本文:
祁学永, 王娅娟, 杨孔章. XRD法研究CrO3与NaY、NaM分子筛的表面相互作用[J]. 物理化学学报,
1997, 13(10): 938-941.
doi:
10.3866/PKU.WHXB19971015
Citation: Qi Xue-Yong, Wang Ya-Juan, Yang Kong-Zhang. XRD Studies on the Interaction between CrO3 and NaY、NaM Zeolites[J]. Acta Physico-Chimica Sinica, 1997, 13(10): 938-941. doi: 10.3866/PKU.WHXB19971015
Citation: Qi Xue-Yong, Wang Ya-Juan, Yang Kong-Zhang. XRD Studies on the Interaction between CrO3 and NaY、NaM Zeolites[J]. Acta Physico-Chimica Sinica, 1997, 13(10): 938-941. doi: 10.3866/PKU.WHXB19971015
English
XRD Studies on the Interaction between CrO3 and NaY、NaM Zeolites
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.
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Key words:
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X-ray diffraction method
- / Chromium trioxide
- / Nay zeolite
- / NaM zeolite
- / Interaction
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