scholarly journals RADIATION STIMULATION OF THE CATALYTIC ACTIVITY OF ZIRCONIUM DIOXIDE NANOPARTICLES DURING THE CONVERSION OF HYDROCARBONS

2021 ◽  
pp. 26-29
Author(s):  
N.P. Dikiy ◽  
Yu.V. Lyashko ◽  
E.P. Medvedeva ◽  
D.V. Medvedev

The comparison of the catalytic activity of the initial and activated by bremsstrahlung -radiation on a high-current electron accelerator of zirconium dioxide nanoparticles on the nature of the conversion of ethanol. The used -activation parameters contributed to the formation of a more perfect crystal structure of ZrO2 nanoparticles. It was shown that when using -activated ZrO2 nanoparticles as a catalyst, the yield of hydrocarbon products during the conversion of ethanol was several times higher than the yield of the same products in the case of using the initial ZrO2 nanoparticles. The mechanism of such a conversion of ethanol can be associated with the synergism of large ionization losses of Auger electrons and the effect of highly reactive products involved in heterogeneous catalysis.

2021 ◽  
Vol 2021 ◽  
pp. 1-10
Author(s):  
Phi Hung Dao ◽  
Thuy Chinh Nguyen ◽  
Thi Lan Phung ◽  
Tien Dung Nguyen ◽  
Anh Hiep Nguyen ◽  
...  

This study presents the results of surface modification of zirconium dioxide (ZrO2) nanoparticles by 3-(trimethoxysilyl) propyl methacrylate silane coupling agent by assessing some characteristics and properties of modified ZrO2 nanoparticles by infrared spectroscopy, thermogravimetric analysis, size distribution, zeta potential, and field emission scanning electron microscopy methods. The modified and unmodified ZrO2 nanoparticles have been used as nanoadditives for organic coatings based on acrylic emulsion resin. The abrasion resistance of acrylic coating was evaluated according to ASTM E968-15. The obtained results show that ZrO2 nanoparticles were functionalized successfully with 3-(trimethoxysilyl) propyl methacrylate silane. The modified ZrO2 nanoparticles exhibit a positive effectiveness in the enhancement of the abrasion resistance of acrylic resin coating compared to unmodified ZrO2 nanoparticles.


2019 ◽  
Vol 6 (7) ◽  
pp. 076551 ◽  
Author(s):  
Vladimir Sarychev ◽  
Sergey Nevskii ◽  
Sergey Konovalov ◽  
Alexey Granovskii ◽  
Victor Gromov

2021 ◽  
Vol 63 (10) ◽  
pp. 1804-1809
Author(s):  
E. V. Yakovlev ◽  
A. B. Markov ◽  
D. A. Shepel ◽  
V. I. Petrov ◽  
A. A. Neiman

2011 ◽  
Vol 38 (7) ◽  
pp. 871-875 ◽  
Author(s):  
Hyung-Jun Kim ◽  
Young-Gu Kang ◽  
Hong-Gyu Park ◽  
Kang-Min Lee ◽  
Seok Yang ◽  
...  

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