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TiO2 photoanodes for electrically enhanced water splitting

✍ Scribed by S. Palmas; A.M. Polcaro; J. Rodriguez Ruiz; A. Da Pozzo; M. Mascia; A. Vacca

Book ID
103832294
Publisher
Elsevier Science
Year
2010
Tongue
English
Weight
625 KB
Volume
35
Category
Article
ISSN
0360-3199

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✦ Synopsis

Photoelectrochemical properties of self-organized TiO 2 nanotubes formed by electrochemical anodization of titanium sheets and their working mechanism are investigated.

Formation and growth of self-organized nanotubes were carried out by Titanium anodization in acid electrolyte containing fluorides. Annealing of the samples was performed in order to increase the crystallinity of the material. Also some results obtained with samples annealed in Nitrogen atmosphere are presented. Electrochemical Impedance Spectroscopy was used to give an interpretation of the main charge transfer processes that occur at the nanotube/electrolyte interphase. The use of glycerol as hole scavenger was considered in order to improve the photoelectrochemical performance of the samples.

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Visible light active Au:TiO2 nanocomposite photoanodes for water splitting: Sol–gel vs. sputtering
✍ N. Naseri; P. Sangpour; A.Z. Moshfegh πŸ“‚ Article πŸ“… 2011 πŸ› Elsevier Science 🌐 English βš– 1023 KB

In this study, pure TiO 2 and Au:TiO 2 nanocomposite thin films are both synthesized using sol-gel and RF reactive co-sputtering methods. Physical and photoelectrochemical properties of the thin films deposited by each method are compared. The optical density spectra and scanning electron microscopy