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/ange.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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引用

Schieder, M., Bojer, C., Stein, J. v., Koch, S., Martin, T., Schmalz, H., Breu, J., & Lunkenbein, T. (2017). Template Removal via Boudouard Equilibrium Allows for Synthesis of Mesostructured Molybdenum Compounds. Angewandte Chemie, 129(45), 14156-14160. doi:10.1002/ange.201610786.

引用: https://hdl.handle.net/11858/00-001M-0000-002C-4EA1-8

要旨

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.