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Chapter 265 Platinum Sodium Catalyst

The electrons also take another path to the positive terminal of the battery, thus creating an electric current.

The essence of electric current is the regular movement of electrons.

Both the hydrogen ions and electrons now reach the positive electrode, where they react with oxygen to form water.

According to this principle, as long as the hydrogen gas continues, the current will be continuously generated, and water will be formed afterwards, without any pollution.

It is a very perfect energy source.

Among them, proton exchange membrane is a difficult point. Now the proton exchange membrane is monopolized by foreign companies.

If you want to reduce costs, you must have the production conditions yourself so that proton exchange membranes can be produced by yourself and become domestically produced.

Proton exchange membranes have very high requirements for materials. Its requirement is that protons can pass through, but electrons cannot.

This requires that the proton exchange membrane has good proton conductivity, which can block the penetration of electrons.

In addition, it has stable chemical properties and ensures that it will not react with other substances.

Moreover, the proton exchange membrane has clear requirements for temperature and water content. Only at a specific temperature, the proton exchange membrane can play its due role.

The reason why proton exchange membranes are so expensive is that on the one hand, they are monopolized by foreign companies, but in fact they are monopolized by American companies. The name of this company is DuPont.

DuPont is worthy of being a giant in the production of materials.

Another aspect is that the manufacture of proton exchange membranes is very difficult, and the yield is not very high.

The most difficult step is the final film formation, which requires very high external conditions, is not easy to form a film, and has a high failure rate. These two reasons have led to the high price of proton exchange membranes.

Now there are many types of proton exchange membranes, such as titanium alloy proton exchange membrane, fluoride proton exchange membrane, iron alloy proton exchange membrane and so on.

According to the knowledge Zhang Xingchen obtained from the black technology system, there are still many methods for manufacturing proton exchange membranes, such as polarization method, multiple electrode method, thin layer precipitation method and so on.

Here Zhang Xingchen went through a screening process, combined with his actual situation, and chose the method that suits him best, which is the thin-layer precipitation method.

"Start manufacturing."

Under Zhang Xingchen's order, the robot started to act, and Zhang Xingchen was relieved to let the robot do the work, because it completely followed the program U, and there would be no mistakes unless there was a problem with the program.

The first thing to do is to make the catalyst slurry.

Add pct catalyst and ptfe solvent to a specific container.

ptfe is a material that is resistant to high temperatures.

The catalyst and PTFE solvent must be added in strict accordance with the proportion, and there must be no deviation, otherwise problems will occur.

The ratio of the two of them is 1:0.9.

After stirring for a certain period of time to make the catalyst slurry uniform, the rest is spraying.

Insert a special straw with a nozzle into the container and start sucking in the catalyst slurry.

After the absorption is complete, these catalyst slurries are sprayed onto the surface of the diffusion layer through a spray nozzle.

After spraying evenly, the operating robot manipulates its own mechanical arm to hold the diffusion layer, and then put it into a vacuum oven for drying.

The temperature should be kept at 75 degrees without deviation. Experiments have shown that baking at 75 degrees has the best effect.

After baking, use a mechanical arm to take it out, and then proceed to the next step, which is to apply it.

This time, the natiosfs solvent was applied, and after being evenly applied, it was put into the vacuum oven for baking again, but this time the temperature should be set to [-] degrees.

After the baking is completed, the proton exchange membrane is produced.

The process is relatively simple, but it is very troublesome to operate. Nanotechnology is used in it, and very high precision is required for operation.

During the production, Zhang Xingchen added new technology, which made the effect of the proton exchange membrane better, the water retention capacity was enhanced, and the working temperature range was also expanded.

The full name of the diffusion layer we mentioned earlier is the gas diffusion layer. We can see from the process that the solvent is applied to the gas diffusion layer.

It can be said that the gas diffusion layer is the cornerstone of the entire proton exchange membrane.

In the past, this kind of gas diffusion layer was monopolized by foreign companies, but our country also has excellent companies, which have conquered the gas diffusion layer not long ago, and can already realize domestic production.

Hydrogen fuel cells need catalysts when they work, and they cannot work without a suitable catalyst.

The catalyst here is actually platinum sodium catalyst.

In fact, in industrial production, sodium platinum catalysts can be used in many places. They are relatively common and widely used.

However, most of them are imported, which requires Zhang Xingchen to produce them himself.

He doesn't want other companies to produce the key things.

The core technology must be in our own hands.

According to the knowledge Zhang Xingchen obtained from the super black technology system, there are more than 100 methods for manufacturing platinum-sodium catalysts, such as high-temperature calcination method, redox method, traditional method, spin separation method and so on.

Each method can write a book, and each method is a priceless treasure and a crystallization of wisdom.

In the end, Zhang Xingchen chose the traditional method, because the traditional method has existed for the longest time, the production process has been perfected countless times, and has passed the test of history.

It can be said to be the most cost-effective one. Isn’t it necessary to pursue the ultimate cost-effectiveness in industry?

"Put in ten tons of platinum chloride." Zhang Xingchen gave an order to the robot.

"Heating." Stirring is also required while heating, so that the platinum chloride can be fully heated and the moisture inside can be removed.

After about three hours, continue to add sodium oxide and catalyst, so that platinum chloride and sodium oxide can react rapidly.

Until white foam appeared in the reaction furnace, the appearance of white foam has proved that the reaction has met our needs.

This is just to complete our first need, which is what we call the first stage, followed by washing.

Remove the excess magazine, then bake to remove the water vapor, so that only platinum sodium remains.

The platinum sodium produced in this way is granular, and each piece of platinum sodium is round and full, as if it came out of a mold.

This is the benefit of the traditional method, which makes each platinum sodium meet the requirements, which can be described as perfect.

Now the market price of platinum sodium catalyst is 1000 yuan per gram, and the platinum sodium catalyst needed for a car is eight grams.

Then the price of the catalyst alone is [-].

However, the cost of the platinum sodium catalyst produced by Xingchen Company is very low, only 50 yuan.

(End of this chapter)