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Molybdenum-doped and anatase/rutile mixed-phase TiO2 nanotube photoelectrode for high photoelectrochemical performance.
- Source :
-
Journal of Power Sources . May2015, Vol. 281, p411-416. 6p. - Publication Year :
- 2015
-
Abstract
- Molybdenum-doped TiO 2 nanotube arrays (Mo-doped TiO 2 NTs) photoelectrodes with anatase/rutile mixed phase are successfully fabricated via two-step anodization of titanium followed by a hydrothermal doping treatment process. The Mo-doped TiO 2 NT material shows higher photocurrent density and enhanced incident photon to current conversion efficiency (IPCE) compared with the pristine TiO 2 NTs for photoelectrochemical (PEC) water-splitting. The improvement of PEC response results from not only the increasing of oxygen vacancies and reducing of the recombination of photoexcited charges by Mo-doping, but also the new formed heterojunctions of anatase/rutile mixed-phase by hydrothermal treatment. Moreover, the Mo-doped TiO 2 NTs show high stability and obvious visible absorption with considerable photocurrent density under visible light (λ > 420 nm). [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 03787753
- Volume :
- 281
- Database :
- Academic Search Index
- Journal :
- Journal of Power Sources
- Publication Type :
- Academic Journal
- Accession number :
- 101138369
- Full Text :
- https://doi.org/10.1016/j.jpowsour.2015.02.017