期刊
ELECTROCHEMISTRY COMMUNICATIONS
卷 13, 期 10, 页码 1030-1034出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.elecom.2011.06.019
关键词
TiO2 nanotubes; Flame annealing; Water-splitting; XPS; C doping
资金
- Romanian Ministry of Labour, Family and Social Protection [POSDRU/88/1.5/S/60203]
In the present work we investigate the effect of flame annealing on the water-splitting properties of anodic TiO2 nanotubes. It is shown that flame annealed (FA) nanotubes can yield a two-fold increase in the maximum water-splitting efficiency under standard AM 1.5 conditions compared to classic annealing treatments. The improved efficiency is mainly the result of the fact that using FA, a higher rutile content can be established in the tube walls without a thermal degradation of the tube morphology. A minor, secondary effect is carbon doping which is caused mainly by organic remnants from the tube formation electrolyte. (C) 2011 Elsevier B.V. All rights reserved.
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