Activating nickel foam with trace titanium oxide for enhanced water oxidation

Abstract

Nickel-based electrocatalysts for water oxidation suffer from low activity and poor stability. In this work, 0.015 mg cm⁻² TiO₂ nanosheets anchored on Ni foam addressed these problems after electrochemical activation. In situ investigations, including Raman spectra, corroborated the enhanced generation of highly active Ni(III)–O–O species on Ni foam in the presence of trace TiO₂.