摘要:
The present invention provides a method for fabricating an electrode comprising a co-catalyst layer for splitting water with light. The method comprises steps of (a) forming a catalyst layer containing at least one selected from the group consisting of a niobium-containing oxynitride and a niobium-containing nitride on an electrically conductive principal surface of a substrate; (b) forming a transition metal oxide layer on the catalyst layer in an inert gas atmosphere containing oxidized gas impurities to provide a stacking structure comprising the substrate, the catalyst layer, and the transition metal oxide layer; (c) immersing the stacking structure in an electrolyte aqueous solution; and (d) applying a positive electric potential to the stacking structure in the electrolyte aqueous solution to convert the transition metal oxide layer into the co-catalyst layer. The present invention provides an electrode for water splitting having high water-splitting efficiency.
摘要:
The present invention provides a method for adsorbing carbon dioxide onto porous metal-organic framework materials, a method for cooling porous metal-organic framework materials, a method for obtaining aldehyde using porous metal-organic framework materials and a method for warming porous metal-organic framework materials. In each method, porous metal-organic framework materials are used while an electric field or an electromagnetic field is applied to the porous metal-organic framework materials, or while a magnetic field or an electromagnetic field is applied to the porous metal-organic framework materials. If an electric field is applied, at least one organic compound included in the porous metal-organic framework materials is a polar compound. Instead, if a magnetic field is applied, at least one metal included in the porous metal-organic framework materials has an unpaired electron.
摘要:
The present invention provides a photoelectrochemical cell. The photoelectrochemical cell comprises a semiconductor photoelectrode which functions as a cathode electrode; a counter electrode which functions as an anode electrode; an electrolyte aqueous solution which is in contact with surfaces of the semiconductor photoelectrode and the counter electrode; and a container containing the semiconductor photoelectrode, the counter electrode, and the electrolyte aqueous solution. The semiconductor photoelectrode includes: a first conductive layer; an n-type semiconductor layer disposed on the first conductive layer; and a second conductive layer which completely covers a surface of the n-type semiconductor layer. The counter electrode is electrically connected to the first conductive layer. The second conductive layer is light-transmissive. The second conductive layer functions as a light incident surface.
摘要:
Provided is a semiconductor photoelectrode comprising a conductive substrate; a first semiconductor photocatalyst layer provided on a surface of the conductive substrate; a second semiconductor photocatalyst layer provided on a surface of the first semiconductor photocatalyst layer. The semiconductor photoelectrode has a plurality of pillar protrusions on the surface thereof. A surface of each of the pillar protrusions is formed of the second semiconductor photocatalyst layer.