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| Preparation of TiO[sub_s]2[sub_e]nanotube arrays and its photoelectrochemical properties of splitting seawater into hydrogen |
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Received:August 18, 2011
Revised:August 19, 2011
Accepted:August 22, 2011
Published Online:October 26, 2011
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| DOI：doi：10.3969/j.issn.1007-7545.2012.02.011 |
| KeyWord:TiO2 nanotube arrays; photoelectrocatalysis; hydrogen production. |
| Author | Institution |
| XIANG Ying |
南昌大学化学系 |
| LI Yue-xiang |
南昌大学化学系 |
| PENG Shao-qin |
南昌大学化学系 |
| ZHOU Lang |
南昌大学化学系 |
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| Abstract: |
| TiO2 nanotube arrays perpendicular to the substrate were fabricated by anodic oxidation in three different electrolytes: fluoride-free inorganic(HCl H2O2), fluoride-inorganic(HF) and fluoride-organic(EG). The influences of electrolytes on the formation of the tubes were investigated. The morphology of the as-fabricated samples was studied with SEM. The TiO2-NTs were used as photoanodes to photoelectrochemically split artificial seawater into hydrogen. The results show that TiO2-NTs obtained in EG electrolytes have a higher hydrogen evolution activity because of relatively better surface smoothness and tube orderliness, which are benefit for electro-hole pairs transporting and reducing recombination between them. |
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