Integrative environment as the resource of professional self-determination

Cтатья посвящена подготовке молодежи к овладению творческими профессиями. Возможности включения обучающихся в выставочную деятельность в условиях интегративной среды рассмотрены как средства становления профессионального художественно-эстетического сознания.The article is dedicated to the preparation of young people to the acquisition of Creative professions. Possibilities of including students in exhibition activity in the conditions of integrative environment are considered as means of formation of professional artistically-aesthetic consciousness

Разработка методики синтеза наноразмерных частиц металлов платиновой группы на поверхности носителя с целью создания катализаторов для портативных генераторов водорода на основе гидролиза боргидрида натрия.

The reaction properties of supported rhodium nanoparticles depend on degree of interaction between rhodium chloride and support at the stage of preparation Rh/TiO2 catalysts. Their catalytic properties are defined by its calcinations temperature and presence of impurity on support surfaceРазработаны научные основы направленного синтеза активных и стабильных катализаторов для портативных генераторов водорода. Выполнены исследования Rh/TiO2 катализаторов и испытания их в реакции гидролиза боргидрида натрия

Enzymatic oligomerization and polymerization of arylamines: state of the art and perspectives

The literature concerning the oxidative oligomerization and polymerization of various arylamines, e.g., aniline, substituted anilines, aminonaphthalene and its derivatives, catalyzed by oxidoreductases, such as laccases and peroxidases, in aqueous, organic, and mixed aqueous organic monophasic or biphasic media, is reviewed. An overview of template-free as well as template-assisted enzymatic syntheses of oligomers and polymers of arylamines is given. Special attention is paid to mechanistic aspects of these biocatalytic processes. Because of the nontoxicity of oxidoreductases and their high catalytic efficiency, as well as high selectivity of enzymatic oligomerizations/polymerizations under mild conditions-using mainly water as a solvent and often resulting in minimal byproduct formation-enzymatic oligomerizations and polymerizations of arylamines are environmentally friendly and significantly contribute to a "green'' chemistry of conducting and redox-active oligomers and polymers. Current and potential future applications of enzymatic polymerization processes and enzymatically synthesized oligo/polyarylamines are discussed

Development of synthesis of supported noble metal nanoparticles for preparation of catalysts used in portable hydrogen generators based on sodium borohydride hydrolysis

The reaction properties of supported rhodium nanoparticles depend on degree of interaction between rhodium chloride and support at the stage of preparation Rh/TiO2 catalysts. Their catalytic properties are defined by its calcinations temperature and presence of impurity on support surfac

Solid-State NaBH₄/Co Composite as Hydrogen Storage Material: Effect of the Pressing Pressure on Hydrogen Generation Rate

A solid-state NaBH4/Co composite has been employed as a hydrogen-generating material, as an alternative to sodium borohydride solutions, in the long storage of hydrogen. Hydrogen generation begins in the presence of cobalt-based catalysts, immediately after water is added to a NaBH4/Co composite, as a result of sodium borohydride hydrolysis. The hydrogen generation rate has been investigated as a function of the pressure used to press hydrogen-generating composites from a mechanical mixture of the hydride and cobalt chloride hexahydrate. The hydrogen generation rate was observed to increase with the increase of this pressure. Pre-reduction of the cobalt chloride, using a sodium borohydride solution, leveled this dependence with a two-fold decrease in the gas generation rate. According to TEM and XPS data, oxidation of the particles of the pre-reduced cobalt catalyst took place during preparation of the composites, and it is this oxidation that appears to be the main reason for its low activity in sodium borohydride hydrolysis