Abstract
Ti alloys with low Nb contents (0.1 at.% and 0.5 at.%) were used to grow self-organized Nb-doped TiO 2 nanotube arrays. These layers were partially converted to SrTiO 3 using a hydrothermal treatment. Various factors, such as hydrothermal temperature, hydrothermal duration, and annealing conditions, were investigated in view of the photocatalytic water splitting performance of the formed Nb-doped TiO 2/SrTiO 3 heterostructure nanotubes. Photoelectrochemical characterization shows that Nb-doping efficiently enhances the photocatalytic water splitting performance of TiO 2/SrTiO 3 heterostructure nanotubes.
Original language | English |
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Pages (from-to) | 56-59 |
Number of pages | 4 |
Journal | Electrochemistry Communications |
Volume | 17 |
Issue number | 1 |
DOIs | |
State | Published - Apr 2012 |
Externally published | Yes |
Bibliographical note
Funding Information:This work was financially supported by the DFG and the DFG-EAM Cluster of Excellence . We would like to thank the Alexander von Humboldt Foundation of Germany for the financial support for Dr. Y. Yang.
Keywords
- Hydrothermal
- Nanotubes
- Nb-doping
- TiO /SrTiO heterostructure
- Water splitting