13C Isotope Labeling Study of Propane Ammoxidation over M1 Phase Mo-V-Te-Nb-O Mixed Oxide Catalyst

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• 作者：N. Raveendran Shiju ; Ramesh R. Kale ; Suri S. Iyer ; Vadim V. Guliants
• 刊名：Journal of Physical Chemistry C
• 出版年：2007
• 出版时间：December 13, 2007
• 年：2007
• 卷：111
• 期：49
• 页码：18001 - 18003
• 全文大小：63K
• 年卷期：v.111,no.49(December 13, 2007)
• ISSN：1932-7455

文摘

Direct ammoxidation of propane to acrylonitrile has been investigated recently as an alternate method for thecurrent process based on propene. The Mo-V-Te-Nb-O mixed oxide is the most promising catalyst atpresent for this reaction. The reaction mechanism of propane ammoxidation over this catalyst is still notinvestigated experimentally. In this work, we have tested the presence of C6 intermediates during the courseof the reaction using ¹³C-labeled propane. The results show that a direct pathway for the ammoxidation ofpropane to acrylonitrile without skeletal rearrangement of the carbon backbone operates under realistic, steady-state conditions.