1. The mechanism of concentric HfO2/Co3O4/TiO2 nanotubes investigated by intensity modulated photocurrent spectroscopy (IMPS) and electrochemical impedance spectroscopy (EIS) for photoelectrochemical activity. (November 2019) Authors: Huai, Xiaochen; Girardi, Leonardo; Lu, Ran; Gao, Shang; Zhao, Yu; Ling, Yunhan; Rizzi, Gian Andrea; Granozzi, Gaetano; Zhang, Zhengjun Journal: Nano energy Issue: Volume 65(2019) Page Start: Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗