Material selection for the mesh electrode of electrochromic device based on Ni(OH)2
Journal Title: Восточно-Европейский журнал передовых технологий - Year 2019, Vol 4, Issue 6
Abstract
<p class="1">In this study, we propose changes to the cell design in order to reduce the cost of electrochromic devices. The modification lies in the replacement of the second electrochromic layer along with its conductive layer with the mesh metal-oxide electrode. This variant of the electrochromic device is proposed to be installed in light windows and upper parts of view windows.</p><p class="1">For the proposed mesh electrode, a few possible electrochemical systems were proposed: Cu|Cu<sub>2</sub>O, Zn|ZnO, Ni|NiO and Ag|AgO. By means of cyclic voltammetry, the working parameters of these systems were found – working potential windows and specific peak current. Based on the obtained data, the silver electrode proved to be the most promising.</p><p class="1">The chosen electrode was studied by means of cyclic voltammetry and galvanostatic cycling. It was found that the specific capacity of the silver electrode does not have a strong dependence on the current density of oxidation and reduction. Minimum and maximum specific capacities of the studied electrode were found, which in 0.1 M КОН were 0.075 mA·h/cm<sup>2</sup> (cyclic voltammetry) and 0.082–0.042 mA·h/cm<sup>2</sup> (galvanostatic cycling). It was also found that during electrochemical cycling in 0.1 M KОН, the following transformations occur Ag↔Ag<sub>2</sub>O and Ag<sub>2</sub>O↔AgO.</p><p class="1">Based on the obtained data, at the specific capacity of the main (electrochromic) electrode of 0.011 mA·h/cm<sup>2</sup>, it is proposed to use a mesh with a 2x2 cell and wire diameter of 0.5 mm. It was found that the cost of the silver mesh can be decreased by using a silver plated copper mesh instead.</p>
Authors and Affiliations
Valerii Kotok, Vadym Kovalenko
Keywords
Related Articles
- EP ID EP666897
- DOI 10.15587/1729-4061.2019.176439
- Views 76
- Downloads 0
Quality assessment of measurement instrument software with analytic hierarchy process
<p>A comparative analysis of the results of conformity assessment of software for measuring instruments (MI) was carried out. For comparative evaluation, eight MI software with built-in and universal computers were selec...
Obtaining the powder-like raw materials with the further research into properties of eggplant powders
<p>Results of the research into development of the advanced technological and technical solutions for the processing of eggplants are reported. The proposed technology resolves the task on the rational use of eggplants....
Research into the impact of structural features of combustion chamber in energy-technological units on their operational efficiency
<p>The experimental studies of the influence of the degree of masonry development (geometry) and aerodynamics of the combustion chambers (circuits of combustion products removal) on the energy-technological indicators of...
Forming the lowporous layers of indium phosphide with the predefined quality level
<p>The morphological quality criterion was developed to have a possibility of formation of nanostructured layers on semiconductor surface with adjustable properties. The layers of low-porous indium phosphide with mesopor...
Designing adaptive PID controller non-sensitive to changes in aerodynamic characteristics of an unmanned aerial vehicle
The method of implementing an adaptive PID controller using a reference model of an unmanned aerial vehicle is presented. The unmanned aerial vehicle has a nonlinear characteristic and high sensitivity to external influe...