Template Removal via Boudouard Equilibrium Allows for Synthesis of 
Mesostructured Molybdenum Compounds

Schieder, Martin; Bojer, Carina; Stein, Julia vom; Koch, Sebastian; Martin, Thomas; Schmalz, Holger; Breu, Josef; Lunkenbein, Thomas

doi:10.1002/anie.201610786

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Template Removal via Boudouard Equilibrium Allows for Synthesis of Mesostructured Molybdenum Compounds

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Lunkenbein, Thomas
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;

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Citation

Schieder, M., Bojer, C., Stein, J. v., Koch, S., Martin, T., Schmalz, H., et al. (2017). Template Removal via Boudouard Equilibrium Allows for Synthesis of Mesostructured Molybdenum Compounds. Angewandte Chemie International Edition, 56(45), 13968-13972. doi:10.1002/anie.201610786.

Cite as: https://hdl.handle.net/11858/00-001M-0000-002C-4EA3-4

Abstract

Oxidative thermal removal of the polymeric templates is not trivial for molybdenum oxides and hampers mesostructuring of this material. At ambient oxygen fugacity, Mo^VI is the thermodynamically stable oxidation state and sublimation of MoO₃ leads to a quick loss of the mesostructure through Oswald ripening. Taking advantage of the Boudouard equilibrium allows to fix the oxygen fugacity at a level where non-volatile MoO_2−x is stable while carbonaceous material may be oxidized by CO₂. Mesostructured MoO_2−x can be chemically converted into MoO₃ or MoN under retention of the mesostructure.