Photo-electrochemical properties of the TiO 2-Pt system in aqueous solutions
Abstract
Electrochemical characteristics of photo-electrochemical cell (involving photo-anode made of TiO 2 and Pt as cathode) were investigated during the light-on and the light-off regimes using the sunlight. Maximum photo-voltage of the open cell involving undoped TiO 2 as photo-anode is 0.7 and 1.6 V without and with chemical bias (Δ pH=14.6), respectively. Application of ceramic Cr-doped TiO 2 (involving 1 wt% of Cr 2O 3) as photo-anode results in a substantial decrease of the cell voltage (to 0.8 V ) despite the application of chemical bias.
- Publication:
-
International Journal of Hydrogen Energy
- Pub Date:
- January 2002
- DOI:
- 10.1016/S0360-3199(01)00090-8
- Bibcode:
- 2002IJHE...27...19B