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Issue 97, 2014
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One-step synthesis of bismuth molybdate catalysts via flame spray pyrolysis for the selective oxidation of propylene to acrolein

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Abstract

Flame spray pyrolysis (FSP) of Bi(III)- and Mo(VI)-2-ethylhexanoate dissolved in xylene resulted in various nanocrystalline bismuth molybdate phases depending on the Bi/Mo ratio. Besides α-Bi2Mo3O12 and γ-Bi2MoO6, FSP gave direct access to the metastable β-Bi2Mo2O9 phase with high surface area (19 m2 g−1). This phase is normally only obtained at high calcination temperatures (>560 °C) resulting in lower surface areas. The β-phase was stable up to 400 °C and showed superior catalytic performance compared to α- and γ-phases in selective oxidation of propylene to acrolein at temperatures relevant for industrial applications (360 °C).

Graphical abstract: One-step synthesis of bismuth molybdate catalysts via flame spray pyrolysis for the selective oxidation of propylene to acrolein

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Supplementary files

Article information


Submitted
23 Sep 2014
Accepted
15 Oct 2014
First published
17 Oct 2014

Chem. Commun., 2014,50, 15404-15406
Article type
Communication
Author version available

One-step synthesis of bismuth molybdate catalysts via flame spray pyrolysis for the selective oxidation of propylene to acrolein

K. Schuh, W. Kleist, M. Høj, V. Trouillet, A. D. Jensen and J.-D. Grunwaldt, Chem. Commun., 2014, 50, 15404
DOI: 10.1039/C4CC07527G

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