Bipolar TiO/sub 2//Pt semiconductor photoelectrodes and multielectrode arrays for unassisted photolytic water splitting

Journal Article · Thu Sep 11 00:00:00 EDT 1986 · J. Phys. Chem.; (United States)

DOI:https://doi.org/10.1021/j100410a026· OSTI ID:5367175

Smotkin, E; Bard, A J; Campion, A; Fox, M A; Mallouk, T; Webber, S E; White, J M

Bipolar TiO/sub 2//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, O/sub 2/ electrolytes, were constructed. In series configuration, the open-circuit voltage V/sub oc/ is proportional to the number of panels used. With five panels in series, a V/sub oc/ in excess of 3.6 V is obtained, permitting unassisted photolytic (Xe lamp) water splitting to produce H/sub 2/ and O/sub 2/.

• Research Organization: Univ. of Texas, Austin
• OSTI ID: 5367175
• Journal Information: J. Phys. Chem.; (United States), Vol. 90:19
• Country of Publication: United States
• Language: English

Related Subjects

08 HYDROGEN
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
PLATINUM
ELECTRODES
PHOTOELECTROCHEMICAL CELLS
POTASSIUM HYDROXIDES
TITANIUM OXIDES
WATER
PHOTOELECTROLYSIS
ELECTRIC POTENTIAL
EXPERIMENTAL DATA
HYDROGEN
ALKALI METAL COMPOUNDS
CHALCOGENIDES
DATA
ELECTROCHEMICAL CELLS
ELECTROLYSIS
ELEMENTS
EQUIPMENT
HYDROGEN COMPOUNDS
HYDROXIDES
INFORMATION
LYSIS
METALS
NONMETALS
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
PLATINUM METALS
POTASSIUM COMPOUNDS
SOLAR EQUIPMENT
TITANIUM COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
080106* - Hydrogen- Production- Biosynthesis & Photochemical Processes
400500 - Photochemistry