Titanium-based lead dioxide electrode
It has long been known that lead dioxide has good electrical conductivity similar to that of metals. Lead dioxide is a non-stoichiometric compound, and its general chemical formula is PbO1.95-Pb1.98. Due to lack of oxygen, there is excess lead, so that lead dioxide has a similar Conductivity of metals. Using nuclear magnetic resonance studies on lead dioxide, it was confirmed that its electrical behavior is similar to that of metallic lead.
New titanium-based lead dioxide electrode
In order to improve the robustness, heteroelectricity and corrosion resistance of lead dioxide electrodes, researchers have developed new lead dioxide electrodes. Compared with the old lead dioxide electrode, the new lead dioxide electrode has been further improved mainly on the bottom layer and surface layer of the electrode, and an intermediate layer has been added. The new lead dioxide electrode consists of a titanium substrate, a bottom layer, an intermediate layer and a surface layer.
A. Titanium matrix
Titanium substrates can use titanium plates and titanium meshes, and it is better to use titanium meshes. Titanium mesh is tough, small in quality and good in corrosion resistance. The advantage of using titanium mesh is that the quality of the electrode is reduced, which is 1/10 of the old electrode, which can make the electrode lighter and the electrodeposited layer firmly combined; the electrolytic solution can circulate well, which can improve the current efficiency; under high current density The use can effectively prevent the electrode from overheating, and can be used under 100A/dm2.
