Bipolar TiO,/Pt Semiconductor Photoelectrodes and Multielectrode Arrays for Unassisted Photolytic Water Splitting
نویسندگان
چکیده
Bipolar Ti02/Pt photoelectrodes were fabricated by anodization of thin Ti foils onto which Pt had been previously sputter-deposited. These photoelectrodes are capable of a vectorial charge transfer. Current-potential curves were used to predict the behavior of multielectrode arrays. Several different multielectrode cells, utilizing KOH, O2 electrolytes, were constructed. In series configuration, the open-circuit voltage V, is proportional to the number of panels used. With five panels in series, a V, in excess of 3.6 V is obtained, permitting unassisted photolytic (Xe lamp) water splitting to produce H2 and 02.
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