Abstract:
In a dye-sensitized photoelectric transfer device having a semiconductor layer and an electrolyte layer between a transparent conductive substrate and a counter conductive substrate, the semiconductor layer is composed of titania nanotubes, and a sensitizing dye is retained by the titania nanotubes. The titania nanotubes preferably have an anatase-type crystalline form. The dye-sensitized photoelectric transfer device is used as a dye-sensitized solar cell.
Abstract:
A method for generating hydrogen gas, an apparatus for producing hydrogen gas, and an energy conversion system, which are so designed as to generate hydrogen extremely efficiently without the help of catalyst are provided. The hydrogen gas is generated by decomposing a metal hydride in a mixture composed of said metal hydride, water, and a second solution which has a pH value lower than that of the aqueous solution of said metal hydride wherein the metal hydride is represented by a formula: alpha z(1-x) beta zx [BH y ], where alpha and beta are mutually different elements selected from Groups 1A, 2A, and 2B of the periodic table; and x, y, and z are defined respectively by 0
Abstract:
The present invention relates to a dye-sensitized type photoelectric conversion device for generating electric power by using solar light. The dye-sensitized type photoelectric conversion device includes a semiconductor layer on which a sensitizing dye having an acidic group-containing porphyrin polymer expressed by a below-described general formula (1) is carried and an electrolyte layer. (Here, in the above-described general formula (1), R 1 to R 18 indicate substituents such as hydrogen atoms, halogen atoms and at least one of R 1 to R 18 is an acidic substituent such as 4-carboxyphenyl group.)
Abstract:
são apresentados: um elemento de conversão fotoelétrica de proteína em estado totalmente sólido sem contato líquido, que pode funcionar mesmo quando um líquido tal como água não esteja presente no interior ou no exterior do elemento, e um processo para produzir o elemento. o elemento de conversão fotoelétrica de proteína em estado totalmente sólido sem contato líquido tem uma estrutura tal que uma camada de proteína sólida (13) compreendendo uma proteína de transporte de elétrons é intercalada entre um eletrodo (11) e um eletrodo (12). a camada de proteína sólida (13) é imobilizada tanto no eletrodo (11) quanto no eletrodo (12). a camada de proteína sólida (13) não contém nenhum líquido tal como água. a camada de proteína sólida (13) é composta de uma película monomolecular ou uma película multi-molecular da proteína de transferência de elétrons.
Abstract:
There is provided a carbon dioxide immobilization unit capable of easily immobilizing carbon dioxide in the form of an organic acid or a carbohydrate under a normal environment. An anode 1 and a cathode 2 both having a surface where an oxidoreductase is present are disposed to face each other with a proton conductor 3 in between. Then, when electric power is externally supplied to the carbon dioxide immobilization unit, in the anode 1, water is decomposed to produce protons, and in the cathode 2, an organic acid or a carbohydrate is produced from the protons produced in the anode 1 and carbon dioxide. At this time, while a carbon dioxide supply section 5 supplies a high concentration of carbon dioxide to the cathode 2, oxygen produced in the anode 1 and the organic acid or hydrocarbon produced in the cathode 2 are removed from a reaction system through an oxygen removal section 4 and a product recovery section 6, respectively.