摘要:
Provided is a membrane electrode assembly for a fuel cell which comprises a polymer electrolyte 13 and a catalyst layer 16, wherein the catalyst layer 16 comprises a wire-shaped catalyst 12. Also provided is a method of producing a membrane electrode assembly for a fuel cell comprising a polymer electrolyte and a catalyst layer comprising a wire-shaped catalyst, which comprises the step of producing a wire-shaped catalyst by means of vapor phase growth or liquid phase growth. With such a constitution, the gas permeability can be increased and the power generation efficiency can be improved.
摘要:
There are provided a catalyst layer that improves power generation efficiency, a membrane electrode assembly, a fuel cell using the membrane electrode assembly, and a method of producing the membrane electrode assembly. Specifically, there are provided a catalyst layer including at least a first catalyst material and a second catalyst material which is different from the first catalyst material, in which the first catalyst material includes a polyacid having a thiol group, and the first catalyst material and the second catalyst material are bound to each other through a thiol bond; a membrane electrode assembly having the catalyst layer; a fuel cell having the membrane electrode assembly; a method of producing the catalyst layer; and a method of producing the membrane electrode assembly.
摘要:
A method of manufacturing a dot pattern includes the steps of preparing a structured material composed of a plurality of columnar members containing a first component and a region containing a second component different from the first component surrounding the columnar members, with the structured material being formed by depositing the first component and the second component on a substrate, and removing the columnar members from the structured material to form a porous material having a columnar hole. In addition, a material is introduced into the columnar hole portions of the porous material to form a dot pattern, and the porous material is removed.
摘要:
Provided are a highly active catalyst layer including platinum and a metal other than platinum, a membrane electrode assembly, a fuel cell, and a method of producing the catalyst layer. A catalyst layer for a fuel cell includes a polymer electrolyte, and a catalyst structure having a dendritic shape, in which the catalyst structure having the dendritic shape includes platinum and a metal other than platinum, and in which a platinum compositional ratio of a surface of the catalyst structure having the dendritic shape is higher than a platinum compositional ratio of the whole of the catalyst structure having the dendritic shape.
摘要:
The present invention provides a new method for producing a structure having a three-dimensional network skeleton. The method includes providing a film including a first material and a second material and removing the second material contained in the film by dry etching. The first material contains a noble metal and is dispersed in the second material.
摘要:
A semiconductor device array comprising highly densely arranged nano-size semiconductor devices is prepared by a simple method. The array comprises a porous body having cylinder-shaped pores formed by removing cylinder-shaped regions from a structure that includes a matrix member formed so as to contain silicon or germanium and the cylinder-shaped regions containing aluminum and dispersed in the matrix member, semiconductor regions formed in the pores, each having at least a p-n or p-i-n junction, and a pair or electrodes, arranged respectively on the top and at the bottom of the semiconductor regions. The semiconductor regions and the pair of electrodes form a plurality of semiconductor devices on a substrate.
摘要:
An object of the present invention is to provide a revolutionary support material removing method which exhibits operational effects not seen in conventional practice.The present invention is a support material removing method for removing a support material (2) located on a surface (1a) of a three-dimensional object (1) molded by a three-dimensional forming device, wherein a slurry (5) which is a mixture of a liquid (3) and abrasive grains (4) is sprayed from a slurry sprayer (6) to remove the support material (2).
摘要:
The present invention provides a new method for producing a structure having a three-dimensional network skeleton. The method includes providing a film including a first material and a second material and removing the second material contained in the film by dry etching. The first material contains a noble metal and is dispersed in the second material.
摘要:
A process for producing a zinc oxide acicular structure by growing an acicular zinc oxide on a substrate, the process comprising the steps of holding the substrate in an electrolytic solution in which at least zinc ions are present, and forming zinc oxide on the substrate by electrodeposition. The electrolytic solution contains at least one cosolute. Also disclosed is a photoelectric conversion device comprising a charge transport layer having the zinc oxide acicular structure.
摘要:
A method of producing oxide whiskers is provided which comprises heating a source material comprised of a metal or an inorganic compound at a first temperature to be vaporized and depositing a crystal constitutive material vaporized from the source material on a substrate heated at a second temperature lower than the first temperature.