In recent years, the development of methods for the synthesis of Mo2C for catalytic application has become especially important. In this work a series of Mo2C samples was synthesized by thermal decomposition of molybdenum blue xerogels obtained using ascorbic acid. The influence of the molar ratio reducing agent/Mo [R]/[Mo] on morphology, phase composition and characteristics of the porous structure of Mo2C has been established. The developed synthesis method allows the synthesis to be carried out in an inert atmosphere and does not require a carburization step. The resulting molybdenum carbide has a mesoporous structure with a narrow pore size distribution and a predominant pore size of 4 nm.

Stable molybdenum blue nanoparticles dispersions were synthesized using ammonium heptamolybdate and ascorbic acid. The effect of molar ratios of reducing agent/Mo and acid/Mo on the speed of formation and stability of the disperse system has been demonstrated. The particles were characterized by UV/vis, infrared (FTIR), nuclear magnetic resonance (NMR) spectroscopy, and dynamic light scattering (DLS) methods. The X-ray photoelectron spectroscopy (XPS) method confirmed the presence of reduced MoV in the structure of molybdenum oxide nanoclusters, the proportion of which was 30%.

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Optiva, Inc. has developed new technology for Thin Crystal Film (TCF) polarizers and retarders manufactured by deposition and drying of water-based lyotropic liquid crystal materials. An effective method to control and monitor two significant steps of this technology, a self-assembly into rod-like supramolecules in liquid material and its subsequent molecular alignment into TCF, is X-ray diffraction. There is direct correlation between X-ray data and the final optical characteristics of TCF polarizers and retarders and therefore its implementation into LCD applications.

Versions of the synthesis of composite membrane catalysts based on Mo 2 C and ceramic microfil tration membranes by chemical vapor deposition and a sol-gel method were developed. The samples of mas sive and supported membrane catalysts were prepared. Differences in the formation of a catalytic layer and its porous structure depending on the sample preparation method were demonstrated. The catalytic activity of the synthesized samples in the carbon dioxide conversion reaction of methane was studied.