Anode structure of electrolysis type ozone generator and its preparation method

Abstract

An adobe structure for electrolysis-type ozone generator and its preparing process are disclosed. Said anode structure is composed of the impervious air-tight compact anode plate and the catalyst particles layer which is freely spread in the space between said anode plate and anode frame. The gap between periphery of anode plate and the inner surface of anode frame is less than the least diameter of catalyst particles but can allow the raw water and generated gas to pass through it.

Description

Technical field: [0001] The invention relates to an anode structure of a solid polymer electrolyte membrane composite electrode used in an electrolytic ozone generator, and to a preparation method of the anode structure. technical background: [0002] In order to utilize ozone, various forms of ozone generators have been developed, and the electrolytic ozone generator using solid polymer electrolyte membrane composite electrodes is a relatively advanced one at present. The core part of this type of ozone generator is the electrolytic cell, and the electrolytic cell mainly includes anode, cathode, electrolyte and raw water. The electrolyte is currently a solid polymer electrolyte, and this electrolyte membrane not only plays the role of electrolyte, but also plays the role of a diaphragm separating the anode and cathode. The anode and cathode on both sides of the solid electrolyte membrane form a composite electrode, and the anode in this composite electrode is composed of a...

AI Technical Summary

Problems solved by technology

[0003] 1. Because the catalyst β-lead dioxide particles are bonded together by polytetrafluoroethylene when the membrane is made, the surface of the lead dioxide particles is attached to polytetrafluoroethylene, and polytetrafluoroethylene has no catalytic reaction function, which reduces the effective contact area of ​​β-lead dioxide particles, thereby reducing the reaction efficiency and ultimately leading to a decrease in the production rate of ozone

[0004] 2. Due to the high price of porous titanium itself, the cost of the anode plate made of it is also very high. In order to improve its corrosion resistance, complex surface treatment is required, which further increases the manufacture of ozone generators. cost

This structure increases the diameter of the gas and water channels on the anode side, which is conducive to improving the efficiency of ozone generation, but the production of small-pore corrosion-resistant metal mesh as a means of fixing the catalyst and its surface corrosion-resistant treatment are still complicated and expensive.

[0007] As far as the preparation method of the anode structure of the ozone generator is concerned, the prior art may not get rid of the complex process of making porous titanium plate (net) and its anti-corrosion treatment, and does not get rid of bonding, plating, and pressing the anode catalyst particles. and other processes, and the existing preparation methods cannot guarantee the high working life of the ozone generator anode structure

[0008] By the above citations to the prior art, it can be seen that the anode structure and preparation method of the ideal electrolytic ozone generator have not yet been found.

Images