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Citation: Yang Kong-Zhang, Wang Ya-Juan, Dong Yu-Lin. The Study on the Surface Interaction Between MoO₃ and NaY and Mordenite[J]. Acta Physico-Chimica Sinica, ;1990, 6(03): 290-297. doi: 10.3866/PKU.WHXB19900308 shu

The Study on the Surface Interaction Between MoO₃ and NaY and Mordenite

1.
Department of Chemistry, Shandong University, Jinan

Received Date: 5 September 1988
Available Online: 15 June 1990

Crystalline MoO_3 and supports NaY, mordenite are mixed thoroughly, and the mixtures are calcined at 450 ℃ for 24 hours. A series of zeolites with dispersed MoO_3 are studied by XRD, Laser Raman, IR spectroscopy and surface area measurements. It is shown that duriag the calcination MoO_3 interacts strongly with NaY and mordenite. As a result of this sarface interaction MoO_3 migrates into the cavities of zeolites and disperses on it's surface as a non-crystalline layer. Moreover, the framework of NaY is destroyed by the dispersed MoO_3, but there are less effects on the mordenite's structure because of it's higher stability.
By XRD method, we estimate the maximum amount of dispersed MoO_3 is 0.54 and 0.11 gram per gram of NaY and mordenite respectively.
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The Study on the Surface Interaction Between MoO₃ and NaY and Mordenite