| Literature DB >> 30346126 |
Yangqin Gao, Yandong Li, Guoqing Yang, Songsong Li, Nan Xiao, Boran Xu, Shuang Liu, Ping Qiu, Shijie Hao, Lei Ge.
Abstract
Fe2TiO5 was synthesized via the solvothermal method and adopted as co-catalyst to improve the photoelectrochemical (PEC) water splitting performance of BiVO4 photoanode. After surface modification by Fe2TiO5, the BiVO4/Fe2TiO5 photoanode shows a 300 mV cathodic shift in onset potential and 3 times enhancement in photocurrent, which delivers a photocurrent density of 3.2 mA/cm2 at 1.23 V vs reverse hydrogen electrode. Systematic optical, electrochemical, and intensity-modulated photocurrent spectroscopy characterizations were performed to explore the role of Fe2TiO5 and reveal that the enhanced PEC performance is mainly caused by the surface passivation effect of Fe2TiO5.Entities:
Keywords: Fe2TiO5; bismuth vanadate; interfacial charge transfer; photoelectrochemical water splitting; surface passivation
Year: 2018 PMID： 30346126 DOI： 10.1021/acsami.8b14141
Source DB: PubMed Journal: ACS Appl Mater Interfaces ISSN： 1944-8244 Impact factor: 9.229