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Electron-Irradiation-Stimulated Atomic-Scale Structural Dynamics of the Pentagonal Channel in a Complex MoVTeNbOx Catalyst

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Zhang,  Wei
Department of Materials Science and, Key Laboratory of Mobile Materials MOE and, State Key Laboratory of Superhard Materials, Jilin University,;
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;

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Zhang,  Bing Sen
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;
Shenyang National Laboratory for Materials Science Institute of Metal Research, Chinese Academy of Science;

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Su,  Dang Sheng
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;
Shenyang National Laboratory for Materials Science Institute of Metal Research, Chinese Academy of Science;

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Citation

Zhang, W., Zhang, B. S., Zheng, W., & Su, D. S. (2015). Electron-Irradiation-Stimulated Atomic-Scale Structural Dynamics of the Pentagonal Channel in a Complex MoVTeNbOx Catalyst. ChemCatChem, 7(22), 3651-3654. doi:10.1002/cctc.201500859.


Cite as: http://hdl.handle.net/11858/00-001M-0000-0029-35CF-8
Abstract
The complex (Mo,V)-based multicomponent M1 phase with a characteristic network of pentagonal, hexagonal, and heptagonal channels is the key catalyst for the catalytic oxidation from propane to acrylic acid. Herein, the atomic-scale structural dynamics in the orthorhombic Mo-V-Te-Nb oxide were probed under electron-beam stimulation. The recorded in situ scanning transmission electron microscopy images unravel the strong bonding and correlation between the (Mo,V)O6 octahedra and the central Nb moieties in the pentagonal channels. Such dynamic electron microscopy imaging can pave the way to chemically tailoring structural units of a general catalogue of functional polyoxometalates through applying top-down electron-beam probing.