Electrode for electrolysis and method of manufacturing electrode for electrolysis

A manufacturing method and electrode technology, which are applied to electrodes, electrolysis processes, electrolysis components, etc., can solve the problems of low ozone efficiency and difficulty in using ozone water with high efficiency, and achieve the effect of improving durability.

Inactive Publication Date: 2007-02-28
SANYO ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] However, in the method for generating ozone water by electrolysis of water as described above, platinum group elements are standard anode materials, and have the characteristics of being substantially insoluble in aqueous solutions that do not contain organic substances, and are used as electrodes for ozone generation. , the ozone generation efficiency is low, and it is difficult to generate high-efficiency ozone water by electrolysis
In addition, in the generation of ozone water by electrolysis using such a conventional electrode for ozone generation, electrolysis at a high current density is required in order to generate ozone, and there are problems in terms of energy consumption and electrode life.

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  • Electrode for electrolysis and method of manufacturing electrode for electrolysis
  • Electrode for electrolysis and method of manufacturing electrode for electrolysis
  • Electrode for electrolysis and method of manufacturing electrode for electrolysis

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Embodiment 1

[0050] Hereinafter, the manufacturing method of the electrode for electrolysis of the present invention will be described with reference to the flowchart of FIG. 4. This manufacturing method is a method of covering and forming the intermediate layer 3 on the surface of the conductive substrate 2, and then covering and forming the surface layer 4 on the surface of the intermediate layer 3.

[0051] First, a titanium plate having a thickness of 1 mm, a length of 80 mm, and a width of 20 mm is used as the conductive substrate 2, and the surface of the conductive substrate 2 (a surface with a length of 80 mm and a width of 20 mm) is polished with a paper file (step S1). In addition, in the ozone generating electrode 1 of this embodiment, only one side of the surface of the conductive substrate 2 is covered with the intermediate layer 3 and the surface layer 4, and the surface layer 4 faces the counter electrode and is used as a reaction surface for electrolysis However, when the ozone...

Embodiment 2

[0093] Next, other embodiments of the present invention will be described. When the ozone generating electrode 1 of this example is compared with the example 1, it is different in the following aspects. That is, in the surface layer 4 of the example 1, instead of tantalum oxide, aluminum oxide, titanium oxide, or oxide is used. Tungsten.

[0094] In addition, in the first embodiment, since tantalum oxide is used to form the surface layer 4, the following materials are used as the surface layer constituent materials, that is, the mixing ratio of n-butyl acetate and dimethylformamide is respectively 95 In the solvent adjusted by the method: 5, a solution of tantalum ethoxide in an amount such that the tantalum concentration reaches 1.45 mol / l is dissolved. In contrast, in this embodiment, when aluminum oxide is used to form the surface layer 4, isoamyl acetate is used as a solvent, and a solution in which an organic metal containing aluminum (Al) is dissolved is used as the surface ...

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Abstract

The present invention provides an electrode for electrolysis capable of efficiently producing ozone water by electrolysis of water at a low current density. The electrode (1) for electrolysis of the present invention is composed of a substrate (2), a surface layer (4) formed on the surface of the substrate (2) and containing a dielectric, and in the surface layer (4), formed from the surface layer The surface of (4) extends continuously to the inner hole (10), and the distance from the hole (10) to the closest part of the surface of the substrate (2) is set to be greater than 0 and not more than 2000 nm.

Description

Technical field [0001] The present invention relates to an electrode for electrolysis used in an electrolysis process for industrial or civil use and a method for manufacturing the electrode for electrolysis. Background technique [0002] Generally speaking, ozone is a substance with very strong oxidizing power. The water in which the ozone is dissolved, the so-called ozone water, is expected to be applied to a wide range of cleaning and sterilization such as water and sewage, food, etc., or cleaning treatment in semiconductor equipment manufacturing processes. Used in processing. As a method of generating ozone water, a method of dissolving ozone generated by ultraviolet irradiation or electric discharge in water, a method of generating ozone in water by electrolysis of water, and the like are known. [0003] Patent Document 1 discloses an ozone water generating device that includes an ozone generating mechanism that generates ozone gas using an ultraviolet lamp, and a tank that...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25B11/08C25B1/13
CPCC02F1/46109C02F2001/46142C25B1/13C02F1/4672C25B11/03C25B11/0405C25B11/051
Inventor 池松峰男金田和博
Owner SANYO ELECTRIC CO LTD
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