Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Rovil Nafeev"'
Autor:
Vadym Kovalenko, Valerii Kotok, Dmitriy Girenko, Mykola Nikolenko, Dmytro Andreiev, Volodymyr Verbitskiy, Volodymyr Medianyk, Svetlana Morozova, Rovil Nafeev
Publikováno v:
Eastern-European Journal of Enterprise Technologies. 1:58-65
Nickel hydroxides are widely used as electrochemically active substances in alkaline batteries and hybrid supercapacitors; they can be used for electrocatalysis, in electrochemical sensors, and as pigments. Knowledge of the formation mechanism of nic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::de99b7fbec30ffe7c6244af0b8792799
https://doi.org/10.15587/1729-4061.2023.272673
https://doi.org/10.15587/1729-4061.2023.272673
Autor:
Vadym Kovalenko, Valerii Kotok, Anastasiia Borysenko, Anton Dopira, Anhelina Rezvantseva, Rovil Nafeev, Volodymyr Verbitskiy, Dmitry Sukhomlyn
Publikováno v:
Eastern-European Journal of Enterprise Technologies. 3:52-59
Pigments are the main components of cosmetics, which determine both toxicity and consumer color characteristics. Zn-Al layered double hydroxides intercalated with anionic food dyes are promising pigments. The best sources of dyes for intercalation ar
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::85342dba6398515c4d20f29cc21f6aa9
https://doi.org/10.15587/1729-4061.2022.260170
https://doi.org/10.15587/1729-4061.2022.260170
Publikováno v:
Eastern-European Journal of Enterprise Technologies. 1:24-30
Obtaining new types of composite coatings for various purposes is the most important direction in chemistry. The synthesis of composite hydroxide-sulfide compounds can be useful in various areas of applied electrochemistry. Using a simple two-step me
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a6e8d78c8c8b5becdd7b5f0cb74672a8
https://doi.org/10.15587/1729-4061.2022.252634
https://doi.org/10.15587/1729-4061.2022.252634
Autor:
Vadym Kovalenko, Anastasiia Borysenko, Valerii Kotok, Rovil Nafeev, Volodymyr Verbitskiy, Olena Melnyk
Publikováno v:
Eastern-European Journal of Enterprise Technologies. 1:12-20
Layered double hydroxides, especially Zn-Al, are valuable matrices for intercalation with various functional anions: dyes, medicines, food additives, etc. For the purposeful development and optimization of the technology for the synthesis of Zn-Al hy
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fd15d42ba29eb417706f6a8ca8f27d01
https://doi.org/10.15587/1729-4061.2022.252738
https://doi.org/10.15587/1729-4061.2022.252738
Autor:
Valerii Kotok, Vadym Kovalenko, Rovil Nafeev, Volodymyr Verbitskiy, Olena Melnyk, Iryna Plaksiienko, Igor Kovalenko, Viktoriia Stoliarenko, Valerii Plaksiienko, Iryna Zamrii
Publikováno v:
Eastern-European Journal of Enterprise Technologies, Vol 6, Iss 12 (114), Pp 27-33 (2021)
Electrochemical devices based on nickel hydroxide electrodes are used in different areas. The main ones are chemical current sources, variable transparency “smart” windows, devices for carrying out electrocatalytic reactions, sensors for determin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::779d3fa1f9a6665769393254ff0c249b
http://journals.uran.ua/eejet/article/view/246511
http://journals.uran.ua/eejet/article/view/246511
Autor:
Volodymyr Verbitskiy, Iryna Plaksiienko, Vadym Kovalenko, Rovil Nafeev, Anatolii Kocherga, Sergey Filonenko, Valerii Kotok, Dmitry Sukhomlyn, Natalia Makarchenko, Olena Melnyk
Publikováno v:
Eastern-European Journal of Enterprise Technologies, Vol 5, Iss 12(113), Pp 39-46 (2021)
The use of electrochromic elements in “smart” windows leads to significant savings in electricity required for cooling premises. However, the high cost of these devices does not allow the technology to be widely used. Since the cost is determined
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fb8ea7f63dc5e86643ec05b4d3e2e45f
http://journals.uran.ua/eejet/article/view/242853
http://journals.uran.ua/eejet/article/view/242853
Autor:
Valerii Kotok, Vadym Kovalenko, Elena Lominoga, Olena Melnyk, Rovil Nafeev, Sergey Vlasov, Larisa Kolesnikova, Volodymyr Verbitskiy, Iryna Plaksiienko, Volodymyr Kalinichenko
Publikováno v:
Eastern-European Journal of Enterprise Technologies, Vol 4, Iss 6(112), Pp 60-66 (2021)
To determine the effect of exposure of film composite electrodes based on Ni(OH)2-polyvinyl alcohol to an alkaline solution at high temperatures on the electrochromic and electrochemical characteristics, a series of films was obtained. The films were
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::19aa0c3e85e6230b9722ae2f73844e1c
http://journals.uran.ua/eejet/article/view/239151
http://journals.uran.ua/eejet/article/view/239151
Autor:
Vadym Kovalenko, Anastasiia Borysenko, Valerii Kotok, Rovil Nafeev, Volodymyr Verbitskiy, Olena Melnyk
Layered double hydroxides, especially Zn-Al, are valuable bases for intercalating various functional anions: dyes, drugs, food additives, etc. For purposeful development and optimization of the synthesis technology of functional materials based on Zn
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e739022bd3fe1e328ae2bdb9e6719540
https://zenodo.org/record/6542484
https://zenodo.org/record/6542484
Autor:
Vadym Kovalenko, Valerii Kotok, Oleksandra Zima, Rovil Nafeev, Volodymyr Verbitskiy, Olena Melnyk
One of the promising applications of nickel hydroxide is electrochemical electrochromic devices. To significantly improve the characteristics, the role of polyvinyl alcohol (PVA) in the synthesis and structure of composite Ni(OH)2-PVA films was inves
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::00389cb353636dc36d122adf2243a64f
https://zenodo.org/record/6514803
https://zenodo.org/record/6514803
Autor:
Valerii Kotok, Vadym Kovalenko, Inna Anataichuk, Artem Mochalov, Natalia Makarchenko, Rovil Nafeev, Volodymyr Verbitskiy
Publikováno v:
Eastern-European Journal of Enterprise Technologies, Vol 6, Iss 5 (108), Pp 6-14 (2020)
Electrochromic coating is the basis of smart windows with variable optical characteristics. Nevertheless, despite the obvious advantages of using smart windows in construction, their cost is high. We have considered the coatings obtained by the catho
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::941f0413d17467883b86996526a32641
https://doi.org/10.15587/1729-4061.2020.220302
https://doi.org/10.15587/1729-4061.2020.220302