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Wika Atro Auriyani, Djoni Bustan, Sri Haryati
Pág. 25 - 29
Most of the R&D on Direct Methanol Alkaline Fuel Cell (DMAFC) concentrates on electrode catalyst and appropriate electrolyte to improve the efficiency. Mostly, a Pt-based electrocatalyst was used. In this research, Nickel foam and membrane silver as non-...
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Valerii Kotok,Vadym Kovalenko
Pág. 31 - 37
Electrochromic devices are actuation elements of smart windows and allow saving the energy needed to cool the premises. Electrochemical deposition can significantly reduce the cost of electrochromic deposition.This paper discusses an electrochemical meth...
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Vadym Kovalenko,Valerii Kotok
Pág. 31 - 38
Nickel hydroxide is widely used in supercapacitors, alkaline batteries, for the electrocatalytic oxidation of organic contaminants, etc. Due to their electrochemical activity, Ni(OH)2 (a+ß) samples of a layer structure synthesized in a slit diaphragm ele...
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Valerii Kotok,Vadym Kovalenko
Pág. 13 - 20
Zinc mesh electrode was proposed for creating a prototype of an electrochromic device capable of recuperating energy spent on coloration. The search for a suitable formation regime of the mesh electrode with required capacity was realized using several a...
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Valerii Kotok,Vadym Kovalenko
Pág. 12 - 17
An attempt was made to co-deposit nickel and manganese hydroxide films to be used as anodic electrochrome. Cathodic template method with polyvinyl alcohol was used for this. Deposition was conducted in the galvanostatic regime from the solution containin...
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Valerii Kotok,Vadym Kovalenko
Pág. 58 - 65
Films based on nickel (II) oxides and hydroxides are used in electrochromic cells as one of the active materials that change their optical characteristics under the action of an electric current. Electrochemical deposition, due to which composite films o...
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Vadym Kovalenko,Valerii Kotok
Pág. 30 - 39
In the modern world, one promising direction is the production and use of multifunction compounds. Ni-Al layered double hydroxide is widely used as the active material in supercapacitors. Nickel compounds are also colored and can be used as pigments. The...
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Valerii Kotok,Vadym Kovalenko,Ihor Kovalenko,Viktoriia Stoliarenko,Sergey Vlasov,Viktor Ved,Iryna Plaksiienko,Paul Pisarenko,Marina Samoilik,Kostiantyn Sukhyy
Pág. 6 - 13
The present study is devoted to an attempt to improve the characteristics of nickel hydroxide electrochromic films. The study of optical and electrochemical characteristics of the films, prepared through the codeposition of nickel and aluminum and additi...
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Vadym Kovalenko,Valerii Kotok
Pág. 6 - 12
Nickel hydroxide is widely used as the active material in chemical power sources. The formation mechanism of nickel hydroxide includes two fast phases of the formation of an initial amorphous particle and slow aging (crystallization) stage. Characteristi...
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Valerii Kotok,Vadym Kovalenko
Pág. 49 - 55
The study is devoted to the development and testing of the electrochromic device based on Ni(OH)2/PVA (polyvinyl alcohol) composite and mesh counter-electrode. A copper wire with a layer of electroplated silver layer is proposed as a mesh material. Glass...
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