초록 ▼

A multielectrode photoelectrochemical cell in which at least contains two bipolar electrode panels for photoelectrochemical reactions such as water photolysis to produce H2 O2 without external bias. In one embodiment of the present invention, a bipolar TiO2/Pt multielectrode photoelectrochemical cel

A multielectrode photoelectrochemical cell in which at least contains two bipolar electrode panels for photoelectrochemical reactions such as water photolysis to produce H2 O2 without external bias. In one embodiment of the present invention, a bipolar TiO2/Pt multielectrode photoelectrochemical cell was fabricated with five panels in series. The cell permitted unassisted photolytic (Xe lamp) water splitting to produce H2 and O2 with H2O2 molar ratio of 2.4/1.

대표청구항 ▼

A multielectrode photoelectrochemical unit for unassisted photoelectrical-induction of a chemical reaction comprising: a housing having at least one light-passing side, a first end, a second end and a housing wall defining an internal section; a first photoactive bipolar electrode panel in the inter

A multielectrode photoelectrochemical unit for unassisted photoelectrical-induction of a chemical reaction comprising: a housing having at least one light-passing side, a first end, a second end and a housing wall defining an internal section; a first photoactive bipolar electrode panel in the internal section, said first photoactive bipolar electrode panel having a semiconductor side, an ohmic contact layer and a underside and being attached to the housing wall near the first end of said internal section with the semiconductor side oriented toward the first end and partially forming a first terminal compartment; and a second photoactive bipolar electrode panel in the internal section, said second photoactive bipolar electrode panel having a semiconductor side, an ohmic contact layer and a catalytic side and being attached to the housing wall near the second end of the internal section with the catalytic side oriented toward the second end and partially forming a second terminal compartment, an internal compartment in said internal section being partially formed by the underside of the first photoactive bipolar electrode panel and the semiconductor side of the second photoactive bipolar electrode panel, said first and second photoactive bipolar electrode panels being attached to said housing walls to prevent liquid flow between the internal compartment and the terminal compartments and being positioned so that light from an external source entering the internal section is substantially incident upon the semiconductor sides.