MMO Titanium Anode For Family Water Processor

 

 

 

Selection of electrode materials for electrolytic water disinfection

It is not difficult to know from the above that electrolytic water disinfection technology depends to a certain extent on the selection of electrode materials. And hydroxyl radical is a very active substance, the existence of a short time. Therefore, it is necessary to choose an electrode material that can produce the substance in large quantities. In the process of research and development in the product r&d room of Unitron and in cooperation with many customers, several electrode materials were tested, among which titanium ruthenium-iridium coating and titanium platinum-plated anode performed better. Due to its excellent electrocatalytic activity, the ruthenium-iridium mixed oxide coating is coated on the surface of titanium substrate by a special process, which has both corrosion resistance and high electrolysis efficiency. It can be designed to use an inverted pole to avoid and alleviate scaling in areas with hard water quality.

This method only needs to choose the electrode with high electrocatalytic activity, without adding other substances, the electrolyte is tap water, low reaction conditions, suitable for the daily home.

Ruthenium-iridium anode assembly for fruit and vegetable disinfection 

Application

1. Disinfect the sink

2. Fruit and vegetable disinfection machine

3. Smart toilet

4. Disinfection washing machine

5. Food purification machine

6. Portable disinfection instrument

7. Integrated kitchen, etc

 

 

 

Cause of electrode failure

1：coating shedding

If the coating is not firmly bonded to the substrate and falls off from the titanium substrate to a certain extent, the titanium-ruthenium-iridium anode will lose its effect.

2：Cracks in the coating

During electrolysis, new ecological oxygen was generated on the titanium anode, and part of it discharged at the interface between the active coating and the electrolyte, and then left the anode surface to generate oxygen into the solution.Due to cracks in the active coating, another part of oxygen is adsorbed on the anode surface and reaches the interface between the coating and titanium matrix through diffusion or migration. Then oxygen is chemically adsorbed on the surface of titanium matrix and generates non-conductive oxide film (TiOz) with titanium, producing reverse resistance. Or the electrolyte invades through the cracks of the coating, the titanium matrix is slowly oxidized, and the interface of the titanium active coating is corroded so that the titanium active coating falls off, leading to the increase of the anode potential of the titanium. The increase of potential further promotes the dissolution of coating and the oxidation of titanium matrix.

3：RuO2 solution

To reduce the occurrence of oxygen, can slow down the formation of oxide film. When total electrolysis current density increases, the speed of gas generation is much bigger than oxygen generating speed increases, so the current density increased to reduce oxygen content in gas. Pre oxidation processing titanium matrix, and to form a layer of oxide film, this can increase the nail in accordance with the activity of titanium coating and the adhesion strength of the titanium substrate, the coating is firm, can prevent the shedding of nail and dissolution, but can also cause nail in accordance with the titanium anode ohmic drop increases.

4：Oxide saturation

Active coating is by stoichiometric RuO2 "and TiO2, belongs to the anoxic oxide. Really is a stoichiometric oxide as the center of the chloride discharge activation, the oxide, the more the more active center, nails according to the activity of titanium anode is better. Nail in accordance with the titanium anode conductive coating performance, from isomorphous RuO2 and Tio2 after heat treatment distortion of n type mixed crystal of performance, there are some oxygen vacancies, when the oxygen vacancies were oxygen filling, overpotential increases rapidly, leading to passivation

 

FAQ

1. Q: Do you have XX model titanium anode?

A: Our titanium anode are all customized, so there are no models, according to your exact drawing, nearly any shape and size we could produce.

2. Q: Can you produce the anode for our XX equipment/generator?

A: Yes, we can.But different clients have different equipment/generator, and need different anode size,so your anode drawing is required.

3. Q: Which coating anode is suitable for me?

A: Your industry please. According to your application environment, we will give you professional advice.

4. Q: How about the anode working current and voltage?

A: Titanium anode could be used for many industries, different industries have different suitable current and voltage take the following into consideration:

The suitable environment for our titanium anode:

Current density: bellow 2000A/M2

Temperature: 40-60℃

There mustn't be any fluorine and cyanide ions in the electrolyte

5. Q: How about the titanium anode lifetime?

A: The titanium anode lifetime for different industry aren't the same, half year to 50 years, according to your exact industry and environment, we will give you the guaranteed lifetime.

tel: +86-18391896637

phone: +86-18391896637

envelope: alisa@jmyunti.com

address:Shaanxi Province, China