Abstract:
According to one embodiment, a transparent conductor includes a transparent substrate; a metal nanowire layer disposed on the transparent substrate and including a plurality of metal nanowires; a graphene oxide layer covering the metal nanowire layer; and an electrical insulating resin layer disposed in contact with the graphene oxide layer.
Abstract:
According to one embodiment, a method of manufacturing a transparent conductor is provided. In the method, a silver nanowire layer including a plurality of silver nanowires and having openings is formed on a graphene film supported by a copper support. Then, a transparent resin layer insoluble in a copper-etching solution is formed on the silver nanowire layer such that the transparent resin layer contacts the graphene film through the openings. The copper support is then brought into contact with the non-acidic copper-etching solution to remove the copper support, thereby exposing the graphene film.
Abstract:
A method for producing a stacked electrode of an embodiment includes preparing a multi-layered graphene film, applying a dispersion liquid of metal nanowires onto the multi-layered graphene film, and removing a solvent from the dispersion liquid to prepare a metal wiring on the multi-layered graphene film.
Abstract:
According to one embodiment, the transparent electrode laminate includes a transparent substrate and an electrode layer which is formed on the transparent substrate and includes a three-dimensional network of metal nanowires. The electrode layer includes a first conductive region and a second conductive region adjacent to the first conductive region. Surfaces of the metal nanowires in the first conductive region are reacted to form reaction products. Surfaces of the metal nanowires in the second conductive region are unreacted. The second region has conductivity higher than that of the first conductive region and an optical transparency.
Abstract:
A stacked electrode of an embodiment includes: a multi-layered graphene film and a metal wiring formed thereon, wherein the metal wiring contains randomly oriented metal nanowires, the multi-layered graphene film contains a laminate of graphene sheets, the graphene sheets each contain an aggregate of graphene plates, and the graphene plates have an average area of (A+B)2 nm2 or more, wherein A (nm) represents the average diameter of the metal nanowires, B (nm) satisfies the equation (1) of B2/(A+B)2=(1−X), and X represents the ratio of the area of the metal nanowires projected in the stacking direction of the stacked electrode.
Abstract:
According to one embodiment, the noble metal catalyst layer includes first noble metal layer and a second noble metal layer formed on the first noble metal layer. The first noble metal layer includes a first noble metal element and has a porosity of 65 to 95 vol. %, a volume of pores having a diameter of 5 to 80 nm accounts for 50% or more of a volume of total pores in the first noble metal layer. The second noble metal layer includes a second noble metal element, and has an average thickness of 3 to 20 nm and a porosity of 50 vol. % or less.
Abstract:
According to one embodiment, there is provided a composite. The composite includes active material particles of a titanium composite oxide or oxide of titanium, and a graphene structure including a carbon material. The carbon material has a graphene framework defining a graphene surface. The graphene structure is located in between the active material particles. The graphene structure has at least one side surface in contact with the active material particle. The side surface includes the carbon material whose graphene surface is slanted relative to the side surface.
Abstract:
According to one embodiment, an electrochemical cell includes an anode, a cathode and an electrolytic membrane interposed therebetween. At least one of the anode and the cathode is formed of an integral solid conductive plate and includes a first surface in contact with the electrolytic membrane and a second surface apart from the first surface in a thickness direction. The at least one of the anode and the cathode includes a plurality of first pores opened in the first surface and a plurality of second pores opened in the second surface, the second pores communicating with a part of the first pores. The first pores are smaller than the second pores, and the concentration of pores in the first surface is higher than that in the second surface.
Abstract:
According to one embodiment, a transparent conductor includes a transparent substrate; a metal nanowire layer disposed on the transparent substrate and including a plurality of metal nanowires; a graphene oxide layer covering the metal nanowire layer; and an electrical insulating resin layer disposed in contact with the graphene oxide layer.
Abstract:
According to one embodiment, the transparent electrode laminate includes a transparent substrate and an optically transparent electrode layer formed on the transparent substrate. The electrode layer includes a three-dimensional network of metal nanowires with a diameter of 20 to 200 nm. Each metal nanowire has a reaction inorganic product of a metal constituting the metal nanowire on a part of a surface thereof.