Synthesis and functional verification of the unsupported active phase of VxOy 
catalysts for partial oxidation of n-butane

Hävecker, Michael; Pinna, Nicola; Weiß, Klaus; Sack-Kongehl, Hilde; Jentoft, Rolf E.; Wang, Di; Swoboda, Manfred; Wild, Ute; Niederberger, Markus; Urban, Joachim; Su, Dang Sheng; Schlögl, Robert

doi:10.1016/j.jcat.2005.10.005

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Synthesis and functional verification of the unsupported active phase of V_xO_y catalysts for partial oxidation of n-butane

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/persons/resource/persons21590

Hävecker, Michael
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;

/persons/resource/persons22229

Weiß, Klaus
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;

/persons/resource/persons22036

Sack-Kongehl, Hilde
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;

/persons/resource/persons21674

Jentoft, Rolf E.
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;

/persons/resource/persons22210

Wang, Di
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;

/persons/resource/persons22152

Swoboda, Manfred
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;

/persons/resource/persons22241

Wild, Ute
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;

Niederberger, Markus
Max Planck Society;

/persons/resource/persons22190

Urban, Joachim
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;

/persons/resource/persons22148

Su, Dang Sheng
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;

/persons/resource/persons22071

Schlögl, Robert
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;

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Citation

Hävecker, M., Pinna, N., Weiß, K., Sack-Kongehl, H., Jentoft, R. E., Wang, D., et al. (2005). Synthesis and functional verification of the unsupported active phase of V_xO_y catalysts for partial oxidation of n-butane. Journal of Catalysis, 236(2), 221-232. doi:10.1016/j.jcat.2005.10.005.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0011-0714-E

Abstract

We studied unsupported VxOy nanoparticles prepared by a novel non-aqueous route in the selective oxidation of n-butane to maleic anhydride. The evolution of the electronic and geometric structure of the material was characterized by X-ray photoemission spectroscopy, electron energy-loss spectroscopy, transmission electron microscopy and electron diffraction before and after the reaction at different temperatures. A change from a water mediated C-C bond cracking functionality of the catalyst forming acetic acid to an oxidizing functionality resulting in maleic anhydride was observed. It was found that the particles did undergo a radical modification of the geometric and electronic structure that finally resulted in V2O5 crystals. Experimentally derived conclusions will be related to some conceptual claims from the literature.