Lead dioxide-SDS composites: Design and properties

摘要: Abstract The electrodeposition of PbO2 from a sodium dodecyl sulphate-containing medium has been investigated. presence sulfate in the deposition electrolyte leads to slight inhibition lead dioxide. It found that morphology and structure composite materials differs significantly With an increase additive content composite, there is transition large-grained deposits with submicron nano-sized crystals. shown anionic surfactants, particular, are included growing changing conditions (temperature, pH anodic current density) allows one control surfactant resulting oxide. possible obtain surfactant-oxide organic substance oxide up 5.4 wt%. electocatalytic activity involved was investigated respect oxygen evolution reaction oxidation 4-chlorophenol. Oxygen overpotential on PbO2-SDS coatings decreases comparison non-modified sample because decrease degree filling oxygen-containing particles surface electrode, probably due blocking by ions. 4-chlorophenol rate increased composites. Thus, already after 90 min electrolysis composites, contained 2 4.2 wt% SDS, all aromatic intermediates destroyed, only aliphatic acids solution.