P. V. Fursikov

Hydrogen sorbing magnesium alloys and composites

The authorsr works studying the hydrogen sorption properties of the magnesium-based materials are reviewed. The objects of the studies were highly dispersed powders of Mg—La—Ni and Mg—Mm—Ni alloys (Mm is misch metal) of the ternary eutectic, composites of magnesium alloys with extended carbon nanostructures, and composites of magnesium hydride with lanthanide oxides. The positive effect of lanthanide oxide additives on the process of hydro-gen desorption from magnesium hydride and the role of carbon nanofibers in these processes carried out at room temperatures are discussed.

Graphene-like nanostructures: synthesis and use for preparation of catalysts and hydrogen storage composites

The results of the works aimed at synthesis of graphene-like nanomaterials by reduction of graphite oxide are summarized. The problems encountered on preparing graphene-metal catalysts applied in hydrogenation processes and reactions of decomposition of hydrocarbons to produce carbon nanofibers are discussed. Development of magnesium-graphene hydrogen storage composites is considered. The optimal preparation conditions and the functional characteristics of the obtained materials are given.

GROWTH FEATURES OF CARBON NANOSTRUCTURES ON Co PARTICLES DEPOSITED ON SiO2 AND Al2O3

The synthesis of carbon nanostructures by Co catalyst based on SiO2 and Al2O3 was investigated. It was established that the catalyst Co/Al2O3 is more effective for the synthesis of carbon nanostructures than Co/SiO2. Increasing the pyrolysis temperature favors the formation of the more uniform carbon nanostructures with smaller diameters.

Influence of conditions for preparation of fullerene-containing carbon black on its microwave properties and yield of fullerenes

Conditions for preparation of the fullerene-containing carbon black with the maximum yield of fullerenes were determined. A correlation between the dielectric constant of the carbon black in the microwave range and the yield of fullerenes was found. The relation of the fullerene-containing carbon black structure to the conditions of its preparation and dielectric constant are discussed.