Electrolytic Behavior of Nickel in Polarization by Variable Asymmetric Rectangular Current in Alkaline Solutions

The paper presents experimental data on nickel oxidation during electrolysis under rectangular alternating current in alkaline solutions, when the cathode pulse (Iк ) is greater than the anode pulse ( Iа ). During the process, intense nickel destruction occurs forming bivalent oxide powder. Under prolonged electrolysis, this powder deposits at the bottom of the electrolyzer in the form of a sponge. The results obtained can be used to produce active mass in the porous nickel oxide electrode of a chemical current source.

Моды разряда пеннинговского ионного источника при импульсном и стационарном режиме питания

We have analyzed the pressure dependences of the discharge and extracted currents for a Penning ion source (PIS) for continuous and pulsed power supplies. We have investigated the effect of voltage amplitude at the PIS anode, pulse repetition rate, and pulse duration on PIS amplitude–time and current–voltage characteristics. The ion source operation regimes and corresponding gas pressure ranges in which different modes of Penning discharge are realized have been determined.