摘要:
A cathode for use in the electrolysis of acid solutions, comprisingan electrically conductive substrate,a sprayed coating layer containing at least 10% by weight of W, WC or a mixture thereof on the substrate andan impregnated coating layer comprising a mixture of a cathode active substance and an acid-resistant fluorine-based resin on the external surface of the sprayed coating layer, and a process for the production of such a cathode. The cathode has very superior hydrogen overvoltage characteristics and durability, and is very suitable for use in the electrolysis of acid solutions.
摘要:
An electrolytic electrode having high durability for use in electrolysis where the generation of oxygen occurs, and a process for the production of the electrolytic electrode, the electrolytic electrode comprising: (a) an electrode substrate of titanium or a titanium-based alloy; (b) an electrode coating of a metal oxide; and (c) an intermediate layer comprising an electrically conductive oxide of tantalum and/or niobium, provided between the electrode substrate (a) and the electrode coating (b), in a thickness calculated as the metal, of 0.001 to 2 g/m.sup.2.
摘要翻译:一种用于电解产生氧气的耐久性高的电解电极,以及电解电极的制造方法,所述电解电极包括:(a)钛或钛基合金的电极基板; (b)金属氧化物电极涂层; 和(c)包含钽和/或铌的导电氧化物的中间层,其以按金属计算的厚度设置在电极基体(a)和电极涂层(b)之间,0.001至2g / m 2 。
摘要:
An electrolysis apparatus comprising a diaphragm of a solid polymer electrolyte, and an anode electrode structure and a cathode electrode structure located on both sides of the diaphragm, at least one of the electrode structures intimately contacting the surface of said diaphragm, the intimately contacting electrode structure comprising a gas-permeable electrically conductive substrate and a film-like porous electrode catalyst layer bonded integrally thereto and a method for producing such.
摘要:
The present invention relates to a process for manufacturing an electrode comprising depositing on an electrode substrate a binder dispersion comprising a precursor of a conductive or semiconductive oxide, forming a conductive or semiconductive oxide coating from the precursor on the electrode substrate, depositing an electroconductive titanium oxide and electrode particles on the conductive or semiconductive oxide coating, adhering the electroconductive titanium oxide and the electrode particles to the formed conductive or semiconductive oxide coating. The invention also relates to an electrode obtainable by the process, and the use thereof in an electrolytic cell.
摘要:
Disclosed is a reaction vessel used for oxidizing and decomposing equipment suitable for processing with supercritical water, and methods of manufacturing the reaction vessel. The reaction vessel comprises an oxide film containing a platinum group metal oxide for example having a fine crystalline structure, and a high corrosion resistance in both oxidizing and reducing atmosphere. The film is formed on a surface of the vessel by performing a pyrolysis reaction in an atmosphere containing water vapor. The oxide film is comprised of at least one platinum group metal oxide selected from Ir, Ru or Rh oxide, and at least one oxide of a metal selected from Ti and Ta.
摘要:
An electrolytic ozone generator comprising anode chamber 3 and cathode chamber 4 partitioned by solid electrolyte 2, in which deionized water is electrolyzed in the cathode chamber while feeding air or oxygen-rich air to the cathode chamber through, for example, air holes 14. The air fed suppresses evolution of hydrogen gas thereby affording a saving of energy and eliminating the need a separate cooling mechanism. Furthermore, the air also decomposes ozone having entered the catholyte.
摘要:
A device for continuously measuring the thickness of a foil includes a radiation source opposite a radiation detector, and a movement member which moves the radiation source and detector synchronously in a width-direction of the foil. A signal generator generates a signal indicating a position of a portion of the foil whose thickness is being measured, and a counter having a plurality of integrating channels integrates detection signals output from the detector to generate an integrated count number for each channel. A signal switching member switches each of the plurality of integrating channels of the counter according to signals generated by the signal generator, and a calculator calculates a foil thickness from the integrated counted number for each channel of the counter. This structure allows continuous and precise measurement of the foil's thickness.
摘要:
An electrolytic ozone generator is described, which comprises a feed tank in which water is stored, an ion-exchange column connected to the feed tank, a pump for feeding the stored water in the feed tank to the ion-exchange column, an electrolytic cell connected to the ion-exchange column and containing a solid electrolyte which is an ion-exchange membrane, an anode disposed tightly on one side of the solid electrolyte, and a cathode disposed tightly on the other side of the solid electrolyte, an electromagnetic valve connected to and disposed between the ion-exchange column and the electrolytic cell, and a hydrogen-separating column connected to the electrolytic cell and for separating hydrogen from a gas-liquid mixture sent from the electrolytic cell and circulating the resulting water to the feed tank, and in which the liquid level of the anolyte in the electrolytic cell is sensed, and, in a case wherein said liquid level is below a predetermined value, ion-exchanged water is fed from the ion-exchange column to the electrolytic cell by controlling the electromagnetic valve.
摘要:
A calcium phosphate-coated composite material is disclosed, comprising a metallic substrate, an oxide layer on the metallic substrate, said oxide layer consisting essentially of the oxide of one or more metals selected from the group consisting of titanium, zirconium, hafnium, niobium, tantalum, tin, cobalt, aluminum, chromium, molybdenum and tungsten, and a coating layer of calcium phosphate provided on the oxide layer. A process for production of the calcium phosphate-coated composite material is also disclosed.
摘要:
A titanium composite material is disclosed which comprises a titanium or titanium alloy substrate, a base layer formed thereon of a calcium phosphate compound resulting from calcination of a hydrochloric or nitric acid aqueous solution of the calcium phosphate compound, and a covering layer thereon of a calcium phosphate compound formed by sintering a suspension of the calcium phosphate compound applied to the base layer. The composite material is useful as a biological implant. It is produced by activating the surface of the substrate, forming the base layer by calcining the solution coated on the substrate and then forming the covering layer by sintering the suspension coated on the base layer. The covering layer may be hydrothermally treated to increase its crystallinity.