摘要:
The present invention aims to provide a catalyst that makes it possible to reduce an amount of solid electrolyte mixed and improve initial performance of a fuel cell, and also a method for producing the catalyst. The present invention relates to a catalyst for a solid polymer fuel cell, which has sulfo groups (-SO 3 H) on catalyst particles. In TEM-EDX analysis, a ratio (I S /I Pt ) of a sulfur peak intensity (I S ) to a platinum peak intensity (I Pt ) on the catalyst particles is within a range of 0.0044 or more and 0.0090 or less. The catalyst makes it possible to reduce the amount of solid electrolyte added and also a fuel cell with excellent initial performance, and thus contributes to a practical use of a fuel cell.
摘要翻译:本发明的目的在于提供一种能够减少固体电解质的混合量,提高燃料电池的初期性能的催化剂,以及催化剂的制造方法。 本发明涉及一种在催化剂颗粒上具有磺基(-SO 3 H)的固体高分子型燃料电池用催化剂。 在TEM-EDX分析中,催化剂粒子上的硫峰强度(I S)与铂峰强度(I Pt)的比(I S / I Pt)在0.0044以上且0.0090以下的范围内。 催化剂使得可以减少添加的固体电解质的量以及具有优异的初始性能的燃料电池,从而有助于实际使用燃料电池。
摘要:
Methods of removing or softening calcium material from a substrate (e.g., a catalytic converter) and regenerating a catalytic converter are provided. A substrate (e.g., a catalyst support material) having a calcium containing material (e.g., calcium-containing fly ash) embedded or deposited thereon can be treated with a composition including one or more organosulfur oxoacids or salts thereof.
摘要:
A sulfonic acid group-containing carbonaceous material that is useful as a solid acid catalyst for various reactions such as hydration of olefins and acidolysis reaction of hydroperoxide and also useful as a proton conductor material having excellent proton conductivity is provided. In addition, an economical and environmentally friendly method for producing methyl ethyl ketone is provided. A sulfonic acid group-containing carbonaceous material having high catalytic activities for various acid catalyst reactions and also having high proton conductivity can be obtained by carbonization and sulfonation of a phenolic resin.
摘要:
A sulfonic acid group-containing carbonaceous material that is useful as a solid acid catalyst for various reactions such as hydration of olefins and acidolysis reaction of hydroperoxide and also useful as a proton conductor material having excellent proton conductivity is provided. In addition, an economical and environmentally friendly method for producing methyl ethyl ketone is provided. A sulfonic acid group-containing carbonaceous material having high catalytic activities for various acid catalyst reactions and also having high proton conductivity can be obtained by carbonization and sulfonation of a phenolic resin.
摘要:
The invention provides titanium dioxide fine particles, wherein nitrogen and at least one element selected from carbon, hydrogen, sulfur doped in titanium dioxide by heat-treating fine particles of a material of titanium dioxide at 500°C or more and 600°C or less in a reducing gas atmosphere containing nitrogen. The titanium fine particles exhibit a high photocatalytic activity than in the conventional art by irradiating a visible light such that they exhibit an isopropanol oxidation activity induced by visible light irradiation with a wavelength of 400 nm or more and 600 nm or less with excellent stability and durability of the photocatalytic activity.
摘要:
A selective catalytic reduction catalyst consisting essentially of at least one oxysulfur compound of manganese, nickel, or mixtures thereof, carried by a supported mixture of ceria and alumina. The catalyst is characterised by its high activity and by its stability even when used in the absence of sulfur oxides.
摘要:
The present invention discloses a process and catalysts for producing taurine by catalytic ammonolysis of alkali ditaurinate, alkali tritaurinate, and their mixture. Useful catalysts are the ammonium and alkali salts of sulfate, bisulfate, sulfite, bisulfite, carbonate, bicarbonate, nitrate, phosphate, and organic carboxylic acids.