TY  - SER
AU  - Goncharova,Darya A.
AU  - Kharlamova,Tamara S.
AU  - Reutova,Olesia А.
AU  - Svetlichnyi,Valerii A.
TI  - Water–ethanol CuOx nanoparticle colloids prepared by laser ablation: Colloid stability and catalytic properties in nitrophenol hydrogenation
KW  - лазерная абляция
KW  - водно-этанольные растворы
KW  - коллоидные наночастицы
KW  - гидрирование нитрофенолов
KW  - статьи в журналах
N1  - Библиогр.: 61 назв
N2  - Colloidal nanoparticle catalysts play a decisive role both in the implementation of a number of important industrial processes, including the hydrogenation of nitro compounds, and in fundamental studies of catalytic reactions on nanoparticles. The laser ablation in liquid (LAL) is a promising method to prepare nanoparticle colloids, and the use of mixed solutions as a medium can be attractive for both preparation of stable colloids and their application in catalysis. While using the LA in water-ethanol solutions, the stable colloids of CuOx NPs demonstrating high catalytic activity in the 4-nitrophenol (4-NP) hydrogenation were prepared. The reasons for the instability of colloids obtained in water and alcohol as well as the stabilization of colloids in water-ethanol solutions were considered. The results obtained contribute to the understanding of the lower catalytic activity of the studied CuOx catalyst in ethanol and other non-aqueous solvents. The presence of ethanol in the reaction medium was found to have an inhibitory effect on the 4-NP reduction kinetics due to the alcohol adsorption on the catalyst surface that is well described within the framework of the Langmuir-Hinshelwood model
UR  - http://vital.lib.tsu.ru/vital/access/manager/Repository/koha:000902173
ER  -