Ionics

, Volume 7, Issue 4–6, pp 272–274 | Cite as

Properties of TiO2 as photoelectrode for hydrogen generation using solar energy

  • T. Bak
  • J. Nowotny
  • M. Rekas
  • S. Ringer
  • C. C. Sorrell
Article

Abstract

The present paper describes electrochemical characteristics of photo-electrochemical cell during light-on and light-off regimes. The cell involves TiO2 as photo-anode and Pt as cathode both immersed in a aqueous electrolyte. The photo-voltage was determined for two different cell structures both equipped with TiO2 as photo-anode. The first cell involved a homogeneous electrolyte system, formed of Na2SO4, and photo-anode made of pressed polycrystalline TiO2. The second cell involved an electrolyte of different pH at both electrodes (ΔpH=14.6) and TiO2 thin film (deposited in Ti) as photo-anode. Maximum photo-voltage of these cells was 0.7 V and 1.3 V, respectively.

Keywords

Hydrogen TiO2 Physical Chemistry Thin Film Analytical Chemistry 

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Copyright information

© IfI - Institute for Ionics 2001

Authors and Affiliations

  • T. Bak
    • 1
  • J. Nowotny
    • 1
  • M. Rekas
    • 1
  • S. Ringer
    • 2
    • 1
  • C. C. Sorrell
    • 1
  1. 1.Centre for Materials Research in Energy Conversion, School of Materials Science and EngineeringThe University of New South WalesSydneyAustralia
  2. 2.Australian Key Centre for Microscopy and MicroanalysisUniversity of SydneySydneyAustralia

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