Physicochemical properties of electrodeposited β -lead dioxide: Effect of deposition current density

摘要: The influence of current density on the coulometric efficiency β-PbO2 deposition in 0.5 M cM lead nitrate, nonstoichiometry, impurity α-PbO2 and voltammetric double layer capacitance have been studied. While is about 95% at densities less than 30 mA cm−2, it decreases higher densities. oxygen deficiency, δ, β-PbO2-δ has found to be invariant with density. X-ray diffraction studies provide a linear decrease weight percent as an increase density, absent 100mA cm−2 or higher. estimated from cyclic voltammograms recorded potential range 0.70–1.10V, increases indicating enhanced surface area.