Electrolysis electrode featuring metal-doped nanotube array and methods of manufacture and using same

Abstract

An electrolysis electrode includes a metal-doped array of nanotubes formed on a substrate. The nanotube array (NTA) may be a stabilized metal-doped black TiO2 NTA formed on a titanium substrate, and the metal dopant may include any suitable metal, for example, cobalt. The metal dopant improves the reactivity of the electrode and enhances its service life. The metal-doped NTA electrode may provide improved chlorine evolution and/or oxygen evolution activity for electrochemical wastewater treatment. The electrode may also be useful for water splitting applications. Increasing the loading of the metal dopant may lead to the formation of a metal oxide layer on top of the NTA, which improves oxygen evolution reaction (OER) overpotential.

Dependencies are inferred from the claim text.