Non-Precious NiCo۲O۴ Coating on TiO۲ Nanotubes as a Stable and Durable Electrocatalyst for Chlorine Evolution Reaction

Some precious metals are excellent electrocatalysts for chlorine evolution reactions and show good stability. However, many studies have focused on replacing these expensive materials with more affordable, non-precious metals. In this study, NiCo۲O۴ coatings were deposited on anodized titanium substrates using the thermal decomposition method. The best performance was achieved with the sample anodized at ۳۰ V for ۳ h, where the first coating layer was applied by the dip-coating method. This electrode maintained electrocatalytic stability for ۱۶۰ h at a current density of ۵۰۰ mA cm². The nanotube structure improved the adhesion of the coating to the titanium substrate and enhanced its durability.

کلیدواژه ها:

Non-precious ، TiO۲ NTs ، Thermal decomposition ، NiCo۲O۴