Abstract
A lanthanum titanium oxynitride (LaTiO 2N) electrode was studied as a visible-light driven photoelectrode for water splitting. The electrode was prepared by casting a LaTiO 2N powder on a fluorine-doped tin oxide glass substrate, followed by calcination under dinitrogen. The as-prepared electrode exhibited an anodic photocurrent based on water oxidation under visible-light irradiation ( λ > 420 nm) in an electrolyte (Na 2SO 4) solution. This current was increased by post-treatment with titanium(IV) chloride (TiCl 4) solution. Scanning electron microscopy and X-ray photoelectron spectroscopy revealed that the titanium species introduced by the post-treatment were titanium oxide, and that they were embedded within LaTiO 2N particles. Resistance measurements of LaTiO 2N electrodes suggested that the increase in the electrode photocurrent after TiCl 4 treatment was due to the improvement of inter-particle electron transfer in the LaTiO 2N thin film.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
