PbO₂ Titanium Anode

PbO₂ Titanium Anode (Ti/PbO₂ electrode), which is an electrode material extensively applied in electrochemical water treatment technology and hydrometallurgy.

Composed of a titanium substrate and a lead dioxide (PbO₂ Titanium Anode) active layer, it possesses multiple advantages, such as low resistivity, stable chemical properties, excellent corrosion resistance, good electrical conductivity, and the capacity to conduct large currents.

With the continuous development of the electrochemical industry and anode technology, traditional anode materials in the electrochemical industry have shown their limitations in applications. Especially in the research of anode materials in the oxygen evolution environment, based on our many years of experience in titanium anode manufacturing, we have developed lead dioxide titanium anodes for hydrometallurgy and wastewater treatment.

The lead dioxide titanium anode is processed through the electrodeposition approach. Typically, a layer of α-PbO2 is initially plated on the titanium mesh as the intermediate layer to strengthen the binding force between the substrate and the active layer, minimize the electrode distortion, and subsequently, β-PbO2 is plated as the active surface layer.

The R&D and improvement of lead dioxide titanium anode

Although the lead dioxide titanium anode has the advantages of long service life, good corrosion resistance and large current, the early titanium mesh plated with lead dioxide anode has poor electrical conductivity due to the formation of the passivation layer of the titanium mesh itself, so its electrocatalytic activity is not high, and the mechanical strength of the PbO2 coating is unstable. Therefore, the titanium mesh substrate needs to be modified and processed, that is, by adding a well-conductive intermediate layer and active layer between the titanium mesh and PbO2 to modify the anode substrate to inhibit the formation of the passivation layer, improve the mechanical strength and flexibility of the coating, reduce the internal stress between the substrate and the coating, and improve the stability and electrocatalytic activity of the coating.