Electrolysis device

An electrolysis device and electrolyte technology, applied in the field of electrochemistry, can solve the problems of ozone entering water, high cost of use, and low electrolysis efficiency, and achieve the effects of good industrial application prospects, high work efficiency, and long service life

Active Publication Date: 2021-08-06
SUZHOU CE NEW MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The process of electrolyzing air to produce ozone produces NO x and other toxic substances, the required AC voltage is high, the electrolysis efficiency is low, it is difficult for ozone to enter the water, the equipment occupies a large area, and the use cost is extremely high
[0006] The efficiency of ozone generated by electrolysis of pure water units is the highest. The electrolysis process uses solid precious metal polymers as electrolytes, combined with cation exchange mode, to obtain ozone through low-voltage electrolysis. However, in this process, the control system is relatively complicated, and the electrolysis efficiency is low. Ozone Difficult to enter the water, high cost of use
Moreover, in the traditional electrolysis device, the cathode and anode materials are all made of metal conductive materials, and some substances in the water body may react with the metal electrodes, which is not suitable for long-term use in strong acid and strong alkali water bodies

Method used

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preparation example Construction

[0030] In view of the problems existing in the prior art, the present invention aims to provide a novel electrode, which comprises an electrode plate and a catalyst coated on the electrode plate. The present invention also provides a preparation method for the novel electrode, comprising the following steps:

[0031] A. Material preparation

[0032] Prepare electrode plates and catalyst:

[0033] (1) The electrode plate is made of non-metallic conductive material.

[0034] Wherein, the resistivity of the non-metallic conductive material selected in the present invention>1×10 -8 Ω·m (ohm meter). As a preferred embodiment of the present invention, the electrode plate is made of conductive ceramics or conductive silicon. More preferably, the conductive ceramics are silicon carbide ceramics, molybdenum disilicide ceramics, thorium oxide ceramics, and lanthanum chromate ceramics.

[0035] The non-metallic conductive material selected by the present invention has the following ...

Embodiment 1

[0075] Take 850gSnC 2 o 4 Add to the reactor, add 200g deionized water to the reactor and stir for 3min, add 5gSb to the reactor 2 o 3 , stirred for 3 minutes, and oxygen was introduced into it at a flow rate of 10 L / min, and the reaction kettle was heated to a temperature of 50° C., and mixed evenly to obtain a mixture. Then add 1g Ni(CH 3 COO) 2 4H 2 O, then feed oxygen, the flow rate of oxygen is 10L / min, heat the reactor at 50°C for 2 hours, maintain the temperature in the reactor at 50°C during this period, and continue to feed oxygen for stirring until the material in the reactor In a suspended state. Finally, the materials in the reactor were allowed to cool naturally, and left to settle for 6 hours. After the precipitation was complete, the upper suspension was taken to obtain the catalyst.

[0076] Choose silicon carbide ceramics as the anode plate, coat the catalyst on the silicon carbide ceramics, pyrolyze the electrode plate at 500°C, repeat the coating-pyro...

Embodiment 2

[0081] Take 570gSnC 2 o 4 Add to the reactor, add 320g deionized water to the reactor and stir for 3min, add 4gSb to the reactor 2 o 3 , stirred for 3 minutes, and oxygen was passed into it at a flow rate of 12 L / min, and the reactor was heated to a temperature of 55° C., and mixed uniformly to obtain a mixture. Then add 3gNi(CH 3 COO) 2 4H 2 O, then feed oxygen, the flow rate of oxygen is 12L / min, heat the reactor at 55°C for 1.5h, maintain the temperature in the reactor at 55°C during this period, and continue to feed oxygen for stirring until the reactor The material is in a suspended state. Finally, the materials in the reactor were allowed to cool naturally, and left to settle for 8 hours. After the precipitation was complete, the upper suspension was taken to obtain the catalyst.

[0082] Silicon carbide ceramics were selected as the anode plate, the catalyst was coated on the silicon carbide ceramics, the electrode plate was pyrolyzed at 580°C, and the coating-py...

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Abstract

The invention relates to an ozone generating electrode, a preparation method of the electrode, and an electrolysis device containing the electrode. The electrode is prepared by the following method: prepare the electrode plate and the catalyst: the electrode plate is made of non-metallic conductive material; the catalyst is made of SnC 2 o 4 , Sb 2 o 3 , Ni(CH 3 COO) 2 4H 2 O is prepared by reaction as a raw material; coating the catalyst on the electrode plate, heating the electrode plate at a temperature of 450-780 ° C; repeating the above steps 9 to 14 times, so that the catalyst forms a uniform coating film on the electrode plate; Sintering treatment is performed on the above-mentioned electrode plate to obtain an electrode. Using the electrode prepared by the invention as the anode of the electrolysis device has higher ozone output in the electrolysis process, longer service life of the electrode, and can be used for the treatment of strong acid and strong alkali sewage.

Description

technical field [0001] The invention relates to the field of electrochemistry, in particular to a preparation method of a novel electrode capable of generating ozone, and provides an electrolysis device containing the electrode. Background technique [0002] Ozone has strong oxidizing properties and is easy to decompose. It can be used as a sewage purifier, decolorizer, disinfectant, etc. When using ozone for sterilization, the speed is fast and the effect is good. Ozone itself is reduced to generate oxygen. Due to the above-mentioned advantages of ozone, its use has been widely recognized, and it is a world-recognized green disinfectant. However, since the half-life of ozone at room temperature is 15-30 minutes (minutes), conventional storage of ozone is difficult and expensive. [0003] At present, the commonly used methods for producing ozone include corona method, electrolysis method, ultraviolet method, and nuclear radiation method. Among them, the equipment investmen...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C25B1/13C25B11/095C25B9/00C02F1/461
CPCC02F1/46109C02F2001/46133C25B1/13C25B9/00C25B11/073C02F1/461C25B11/04
Inventor 宋兴余李富昌
Owner SUZHOU CE NEW MATERIAL TECH CO LTD
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