Ta and Nb Locations in Mo-V-Te-(Ta, Nb)-O M1 Phases and Their Role in Selective Propane Ammoxidation to Acrylonitrile

Woo, Jungwon

Monday, June 3, 2013

Clements (Galt House Hotel)

Jungwon Woo¹, Junjun Yu¹, Albina Borisevich², Ye Xu² and Vadim V. Guliants¹, (1)University of Cincinnati, USA, (2)Oak Ridge National Laboratory, USA.

Mo-V-Te-(Ta,Nb)-O M1 phase catalysts were studied by HAADF-STEM and DFT. Ta was found to reside in site S9 (STEM and DFT), while DFT confirmed Nb location in S9. The Ta and Nb occupancy in S9 apparently plays an important role in controlling reactivity of M1 phases in propane ammoxidation.

Extended Abstracts:

Abstract-NACS-JW-11302012-final.pdf (59.9KB) - Extended Abstract

P-M-Cle-16 Ta and Nb Locations in Mo-V-Te-(Ta, Nb)-O M1 Phases and Their Role in Selective Propane Ammoxidation to Acrylonitrile