Chemical and phase transformation in the V2O5–(NH4)2Mo2O7 system during the mechanochemical treatment in various media

Mechanochemical Modification of V-Mo-Zr Oxide Compositions

“…Spectra of V 2 O 5 /MoO 3 /ZrO 2 compositions contain an asymmetric band with maximum characteristic for vanadium oxide, as well as broad band in the region > 600 nm due to the presence of metals with a low oxidation state. It can be seen that the band gap E g slightly decreases with enrichment of mixture the molybdenum and zirconium oxides, which have smaller values E g than V 2 O 5 [9,11].…”

A facile and reliable route to prepare highly dispersive ammonium dimolybdate uniform crystals from commercial molybdenum oxide

“…Accordingly, the weight loss ratio of 14.82% should be attributed to further decomposition of ADM and release of gaseous NH 3 [12,13], and as-calculated theoretical weight loss should be 15.47% which is basically consistent with the experimental value (14.82%). Similarly, the analysis for the DSC curve indicates that the bigger endothermic peak should relate to the decomposition [14] of molybdate intermediate. As temperature rises to 795 8C, the TG curve becomes flatter, which should be ascribed to sensible heat change of MoO 3 (s).…”