Zobrazeno 1 - 10
of 87
pro vyhledávání: '"Sergey K. Poznyak"'
Autor:
Hanna M. Maltanava, Nadzeya Yu. Brezhneva, Alexander V. Mazanik, Semyon O. Mazheika, Tatiana V. Gaevskaya, Ekaterina V. Skorb, Sergey K. Poznyak
Publikováno v:
Журнал Белорусского государственного университета: Химия, Iss 2, Pp 63-75 (2020)
Dense and mesoporous titanium dioxide films have been obtained on titanium substrate by means of thermal oxidation, hydrolysis of polybutyltitanate, deposition of titanium dioxide sol, ultrasonic treatment and anodic oxidation and characterized by sc
Externí odkaz:
https://doaj.org/article/58e0c5a1517c42bb8051037bee8849b4
Autor:
Daria I. Tishkevich, Sergey S. Grabchikov, Ludmila S. Tsybulskaya, Vladislav S. Shendyukov, Sergey S. Perevoznikov, Sergey K. Poznyak, Alexey V. Trukhanov
Publikováno v:
Журнал Белорусского государственного университета: Химия, Iss 1, Pp 14-21 (2018)
XRD analysis showed that bismuth coatings formed from perchlorate electrolyte have a rhombohedral type of crystal lattice, the most intense reflex of Bi is (012). The number of organic additives adding into the electrolyte leads changing in the textu
Externí odkaz:
https://doaj.org/article/a7b7276bb94642f393162cc800cc487b
Autor:
Evgeni A. Ovodok, Maria I. Ivanovskaya, Sergey K. Poznyak, Tatiana V. Gaevskaya, Igor I. Azarko
Publikováno v:
Журнал Белорусского государственного университета: Химия, Iss 2, Pp 50-58 (2017)
Paramagnetic defects and radical forms of impurities in titanium dioxide, prepared from TiC by nitric acid oxidation and subsequent calcination in different conditions, have been studied by EPR. The presence of NO2, NO22−, NО, O3– and·С ≡ pa
Externí odkaz:
https://doaj.org/article/e9c096c453bc416e8e324df8ce709d31
Autor:
Hanna M. Maltanava, Sergey K. Poznyak, Nico Scharnagl, Maria I. Ivanovskaya, Tatiana V. Gaevskaya
Publikováno v:
Журнал Белорусского государственного университета: Химия, Iss 1, Pp 3-9 (2017)
Effect of fluoride ions on the structure of titanium dioxide films prepared by anodization has been studied using X-ray photoelectron spectroscopy, X-ray analysis and scanning electron microscopy. Under the action of fluoride ions, tubular nanostruct
Externí odkaz:
https://doaj.org/article/5ff95a7bb4a24ae3bc46441be68d57de
Autor:
Gediminas Monastyreckis, Anastasiia Stepura, Yaryna Soyka, Hanna Maltanava, Sergey K. Poznyak, Mária Omastová, Andrey Aniskevich, Daiva Zeleniakiene
Publikováno v:
Sensors, Vol 21, Iss 7, p 2378 (2021)
Real-time strain monitoring of large composite structures such as wind turbine blades requires scalable, easily processable and lightweight sensors. In this study, a new type of strain-sensing coating based on 2D MXene nanoparticles was developed. A
Externí odkaz:
https://doaj.org/article/a8ffe5fc1cd245889a9dfec61f61508c
Autor:
Mikalai V. Malashchonak, Sergey K. Poznyak, Eugene A. Streltsov, Anatoly I. Kulak, Olga V. Korolik, Alexander V. Mazanik
Publikováno v:
Beilstein Journal of Nanotechnology, Vol 4, Iss 1, Pp 255-261 (2013)
The method of successive ion layer adsorption and reaction was applied for the deposition of CdS nanoparticles onto a mesoporous In2O3 substrate. The filling of the nanopores in In2O3 films with CdS particles mainly occurs during the first 30 cycles
Externí odkaz:
https://doaj.org/article/156a68d01d274919af07318d2e191cde
Autor:
Natalie N. Tarasenka, Vladislav G. Kornev, Alena A. Nevar, Seung Jun Lee, Hanna M. Maltanava, Sergey K. Poznyak, Myong Yong Choi, Nikolai V. Tarasenko
Publikováno v:
ACS Applied Nano Materials. 6:5918-5929
Publikováno v:
Journal of Applied Spectroscopy. 88:489-495
The effect of the molecular structure of indotricarbocyanine dyes on their luminescence spectral and redox properties was studied. The introduction of a chlorine-substituted bridge into the polymethine chain leads to a significant hypsochromic shift
Autor:
Nadzeya Brezhneva, Tatiana Gaevskaya, Alexander V. Mazanik, Sergey K. Poznyak, Ekaterina V. Skorb, Semyon O. Mazheika, Hanna Maltanava
Publikováno v:
Журнал Белорусского государственного университета: Химия, Iss 2, Pp 63-75 (2020)
Плотные и мезопористые пленки диоксида титана получены на титановых подложках методами термического окисления, гидролиза полибутилти
Autor:
Sergey K. Poznyak, Maria Ivanovskaya, Frederico Maia, Nico Scharnagl, Hanna Maltanava, Evgeni Ovodok, Vladislav S. Shendyukov, Vladimir Spacek, João Tedim
Publikováno v:
Ovodok, E.; Maltanava, H.; Poznyak, S.; Ivanovskaya, M.; Shendyukov, V.; Spacek, V.; Scharnagl, N.; Maia, F.; Tedim, J.: Rhodamine-loaded TiO2 particles for detection of polymer coating UV degradation. In: Materials Today. Vol. 20 (2020) 3, 320-328. (DOI: /10.1016/j.matpr.2019.10.069)
Epoxy based composites filled with RhB-loaded TiO2 containers were prepared. SEM, EDX mapping, and Raman spectroscopy showed a uniform distribution of the TiO2 particles in the polymeric matrix. The sensitivity of the composites to UV irradiation was