Nanotube array-like WO3/W photoanode fabricated by electrochemical anodization for photoelectrocatalytic overall water splitting

A photoactive nanotube array-like WO3/Wphotoanodefabricated by anodic oxidation achieved efficient photoelectrocatalytic overall water splitting under visible-light irradiation because of its fast carrier transfer rate and low photogenerated electron-hole pair recombination rate.