Datensatz

Zusammenfassung

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.