Electrodeposition of CuInSe2 (CIS) and CuInAlSe2 (CIAS) from aqueous solution has been systematically investigated by cyclic voltammetery implementing different scan rates. It has been shown that electrodeposited CIS and CIAS have been formed on the substrate through electrochemical-chemical interaction of reduces species on the substrate.  From the obtained results, it could be inferred that I...

Electrochemical study of Er(III)/Er and Yb(III)/Yb systems was independently investigated in molten LiF-CaF2 on inert electrode at 840 °C using cyclic voltammetry square wave voltammetry. Experimental results showed that two different behaviours were observed: Er(III) reduced into metal a one-step diffusion controlled process Yb(III) first Yb(II) then Yb. The electrochemical containing both Mo ...

The possibility of silicon electrodeposition from the low-melting LiCl-KCl-CsCl-K 2 SiF 6 electrolytes has been studied. stability a silicon-containing additive was studied by cyclic voltammetry, and rate constant chemical reaction 4 release at temperature 827 K calculated. It is determined that constants velocity values in melt based on eutectic composition are orders magnitude higher, which i...

The hardness and wear resistance of amorphous Al–Mn alloy coatings can be improved by incorporating ceramic particles into them to extend their application. In this paper, Al–Mn/WC composite have been prepared with electrodeposition in stirred AlCl3–NaCl–KCl–MnCl2 molten salts at 180 °C the addition WC particles. effects stirring speed (400–700 rpm) cathode current density (15–75 mA/cm2) on pro...

Hydrogen is considered to be the most promising candidate as a future energy carrier. One of the most used technologies for the electrolytic hydrogen production is alkaline water electrolysis. However, due to the high energy requirements, the cost of hydrogen produced in such a way is high. In continuous search to improve this process using advanced electrocatalytic materials for the hydrogen e...

The process of etching is the most crucial part of the work of manufacturing printed circuit boards (PCB). In the etching process by nitric acid, a spent etching waste solution of composition 250 g/L HNO3, 30-40 g/L Cu, 30-40 g/L Sn, 30-40 g/L Pb and 20-25 g/L Fe is produced. High metal concentrations in the spent etching waste solution make it a viable candidate for the recovery of metals. Rec...

Lean-zinc anode is a promising configuration that can eliminate the trade-off of energy density and cycle lifetime zinc metal (Zn0) batteries. However, there are rare investigations lean-Zn designs it remains grand change to sustain high reversibility under lean conditions. Herein, design based on hierarchical zincophilic cobalt (Co0) nanowire-decorated carbon host, which derived from ZnCo bime...