The conditions of formation of MoO/C composites obtained by hydrothermal-microwave treatment of a mixture of peroxomolybdic and tartaric acids with subsequent annealing of precursors in an inert atmosphere have been studied. The use of tartaric acid as a source of the carbon component of the composite makes it possible to obtain MoO/C with a carbon content of up to 15.1 wt. %. The main physicochemical characteristics of MoO/C composites have been determined by X-ray phase analysis, vibrational and X-ray photoelectron spectroscopy, electron paramagnetic resonance, thermogravimetric and chemical analysis, scanning electron microscopy, low-temperature nitrogen adsorption, and the pycnometric method. It has been established that the composition, textural, and thermal properties of the composites are determined by the content of tartaric acid in the reaction mass, the variation of which makes it possible to obtain MoO/C with varying degrees of defectiveness and graphitization of the carbon component of the composites. A possible mechanism for the formation of MoO/C composites is proposed.
Z. A. Fattakhova (Wed,) studied this question.