Nonstoichiometric rutile TiO2 photoelectrodes for improved photoelectrochemical water splitting.

TitleNonstoichiometric rutile TiO2 photoelectrodes for improved photoelectrochemical water splitting.
Publication TypeJournal Article
Year of Publication2013
AuthorsZhen C, Wang L, Liu L, Liu G, Lu GQ, Cheng H-M
JournalChemical communications (Cambridge, England)
Volume49
Issue55
Pagination6191-3
Date Published2013 Jul 14
Abstract

A new type of nonstoichiometric rutile titanium dioxide (TiO2) film with around 15 at% oxygen vacancies homogeneously distributed throughout the bulk was prepared. The resultant films, when used as a photoelectrode, showed a photoelectrochemical water splitting activity 1.7 times that of stoichiometric TiO2 at a bias of 0.9 V vs. Ag/AgCl. This is believed to result from the synergistic effect of the improved bulk transport and surface transfer of charge carriers compared to the stoichiometric rutile TiO2.

DOI10.1016/j.actbio.2013.05.026
Alternate JournalChem. Commun. (Camb.)