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Electron Beam Induced Reduction of V2O5 Studied by Analytical Electron Microscopy

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Abstract

The reduction of V2O5 under electron irradiation was studied by means of electron energy-loss spectroscopy, electron diffraction, and high-resolution imaging. The decrease of spectral intensity of O 1s excitations indicates a preferential removal of oxygen. The observed chemical shifts of the V 2p3/2 and V 2p1/2 peaks reveal that V5+ is reduced to V2+. Electron diffraction and high-resolution imaging show a structural change from the orthorhombic V2O5 to cubic VO. The beam induced reduction is compared with thermal decomposition of V2O5.

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Authors and Affiliations

  1. Fritz-Haber-Institut der Max-Planck-Gesellschaft, Abteilung Anorganische Chemie, Faradayweg 4-6, D-14195, Berlin, Germany

    D.S. Su, M. Wieske, E. Beckmann, A. Blume, G. Mestl & R. Schlögl

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  1. D.S. Su
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  2. M. Wieske
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  3. E. Beckmann
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  4. A. Blume
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  5. G. Mestl
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  6. R. Schlögl
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Su, D., Wieske, M., Beckmann, E. et al. Electron Beam Induced Reduction of V2O5 Studied by Analytical Electron Microscopy. Catalysis Letters 75, 81–86 (2001). https://doi.org/10.1023/A:1016754922933

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