Section 252

Liu Xiaodong stepped forward, still holding a stack of A4 paper in his hand, and said, "Professor, do you still remember the thing I discovered?"

Xiao Yi nodded: "Of course I remember."

Around the same time that solid-state lithium-sulfur batteries were developed last year, Liu Xiaodong was reviewing experiments on nanoporous materials and discovered that in pores with a diameter between 20nm and 30nm, especially 26nm, the speed of electrons passing through these pores exists. The increase in abnormality can even reach more than ten times.

A speed increase of more than ten times is quite an incredible discovery.

At that time, Xiao Yi judged that perhaps this discovery could be equivalent in importance to the discovery of the quantum anomalous Hall effect.

But at that time, he was studying the Greenwald limit problem, so he didn't do it.

He couldn't help but become a little interested and asked: "So, have you discovered the principle?"

"Uh..." Liu Xiaodong scratched his head in embarrassment and said, "That's not true. What is generally clear is that it is related to some properties of carbon composite materials, or it may be some properties that have not yet been discovered."

"But this phenomenon occurs too randomly, and the probability is quite low, so it is difficult to verify."

Xiao Yi nodded slightly, "The paper hasn't been sent yet, right?"

"That's not true."

Liu Xiaodong said sheepishly: "You know..."

Xiao Yi smiled.

Such a discovery can be published in a top journal even if the principle is not understood, but obviously this means giving up the benefits brought by the discovery of the principle.

Therefore, if the ultimate principle cannot be discovered except in reality, the discoverer will basically try his best to find the principle.

Obviously, Liu Xiaodong is in such a situation now.

"So are you planning to cooperate with me now?"

Liu Xiaodong nodded: "Yes, I can't discover the principle myself anyway, but Professor Xiao, you definitely can. Besides, Professor Xiao, you should not be busy now, right?"

Last time, Xiao Yi was busy with other things, so he asked him to study it by himself.

It wasn't until some time ago that he learned that Xiao Yi went to study the NS equation and nuclear fusion, and even proved the NS equation by the way.

Give him the shock of not wanting to.

However, Xiao Yi should be free now, right?

Xiao Yi pondered for a moment, then nodded: "Okay, I am indeed more optimistic about this research. Since you are willing to study with me, then I will not refuse."

The reason why he refused at the beginning was not only because he was busy with other things, but also because this thing was discovered by Liu Xiaodong, so he still let Liu Xiaodong study it by himself first to see if he could produce any results.

Liu Xiaodong suddenly beamed with joy.

This wave is stable!

"Are these data experimental data?"

Xiao Yi looked at the A4 papers he brought over at this time and asked.

"Yes, these are all the data that I selected and found to be valuable. Take a look."

Liu Xiaodong handed these data to Xiao Yi.

After Xiao Yi took it, he started to read it.

These data are mainly the results of analyzing different samples using various experimental instruments, and contain a lot of information.

Xiao Yi watched, and gradually, his eyes began to narrow.

"It's interesting."

These data are helpful for studying various properties of carbon composite materials.

perhaps……

even……

Can you help him find a carbon structure suitable as the first wall material? !

Chapter 221 20% sure? enough

The element carbon has always shown various magical properties.

The research on carbon has never stopped. In the history of the Nobel Prize alone, there have been many times directly related to carbon. Among them is the well-known graphene, which made its discoverer Andre Geim and Konstantin Novoselov won the Nobel Prize in Physics in 2010.

Then there was the 1996 Nobel Prize in Chemistry, which was awarded to Robert Cole, Harold Croteau and Richard Smalley for their discovery of fullerene, also known as C60.

In addition to these direct discoveries, there are also many important discoveries related to carbon.

As for why carbon can exhibit so many properties, it mainly lies in its unique atomic structure and chemical properties.

First of all, in terms of electron configuration, carbon atom has 6 electrons, and its electron configuration is 1s2s2p.

This allows carbon to form four covalent bonds because it has four unpaired valence electrons that can pair with other atoms.

It is precisely for this reason that carbon can form a variety of structures and that carbon has become the basis of life. All life on earth is called carbon-based life.

"But so far, no theory has been able to fully explain the properties of carbon."

In the laboratory, Xiao Yi held tweezers in his hands. There was a piece of nanoporous carbon material clamped on the tweezers, and his eyes were fixed on the piece of nanoporous carbon.

The ability to master materials was used invisibly, and then his vision entered the microscopic horizon.

By simulating the flow of electrons in and out of these apertures, he could occasionally observe that the speed of some electrons suddenly accelerated, and they seemed to fly directly through the apertures.

Even in the case of microscopic vision, he could not observe what exactly caused the electrons to speed up.

The level of detail that his microscopic vision could see in the end could not reach the level of electrons. As for why he could observe electrons, it was simply because the electron cloud increased the observability of electrons, so he could see the behavior of electrons.

As for the true appearance of electrons, he could not see it at all.

The sudden acceleration of electrons must also be derived from the characteristics of certain basic forces, and the microscopic vision certainly could not allow him to observe how the basic forces work.

Therefore, if you want to analyze the principle that causes electron acceleration, you still need to analyze it from a global perspective.

After groping his chin, Xiao Yi stopped the material mastery and picked up Liu Xiaodong's previous experimental report next to him.

Liu Xiaodong not only tried lithium-sulfur batteries, but also tried some other methods. The simplest experimental method was to directly put nano-porous carbon in the middle, and then use a photoelectric emission device on the other side to use the electrons generated by the photoelectric effect to pass through the aperture, so as to observe whether the electrons would still accelerate in the aperture without the interference of any other materials.

According to the final experimental results, the acceleration phenomenon still exists, so this completely excludes all other factors and proves that the electron acceleration phenomenon is related to the aperture.

At the same time, in addition to the carbon aperture, it does not rule out whether the aperture structure may cause this acceleration phenomenon.

So in Liu Xiaodong's experiment, he also looked for various other nano-scale porous materials, such as metal organic framework MOFs materials, covalent organic framework COFs, mesoporous silica and many other materials.

But in the end, only carbon porous materials can produce aperture acceleration.

"Carbon aperture..."

Xiao Yi pondered for a moment, and then began to use the absolute electronic principle to create a carbon aperture model next to him, and then began to manually calculate what changes would happen to the model when the electron passed through the aperture.

However, under his calculation, there was no acceleration of the electron speed.

The simulation failed.

"So... are there still some undiscovered principles?"

Or effects?

When it comes to the effects related to electrons, Xiao Yi quickly remembered the Hall effect.

The Hall effect is a very important electromagnetic phenomenon. By applying a magnetic field perpendicular to the current in a conductor or semiconductor material, a voltage difference can be generated in the direction perpendicular to the current and the magnetic field.

This effect has a wide range of applications, and it has appeared in fields such as sensors, magnetic field measurement, and semiconductor research.

The Hall thruster made based on the Hall effect also has a very impressive performance in space, mainly because the Hall thruster has a very high specific thrust.

However, the principle of the Hall effect is very clear, but where does this aperture acceleration principle come from?

"Since it is related to electrons, it should be an electromagnetic interaction force."

"And silicon and carbon both have 4 extranuclear electrons, but silicon-related nanoporous materials do not have such aperture acceleration, only carbon..."

Xiao Yi had various speculations in his mind, but in the end, he made the final decision.

"The element carbon must be completely analyzed."

Although there are quite a lot of studies on carbon, there are not many studies that can specifically analyze the element carbon in an all-round way.

Of course, the main reason is that scientists still don't know how many undiscovered properties carbon has.

Just like fullerene was discovered in 1985, which is only 40 years ago, and graphene was discovered in 2004, which is 20 years ago. Then there is magic angle graphene discovered in 2018. At a special interlayer twist angle, superconductivity occurs.

Of course, the properties of magic angle graphene are not only manifested on graphene, but other materials with similar two-dimensional layered structures may also show similar strange electronic properties, including superconductivity, under certain conditions.

But no matter what, these studies can show that carbon may still have quite a few properties that human science has not discovered.

The current carbon aperture acceleration problem can be regarded as one of them.

Therefore, Xiao Yi now believes that it is necessary to conduct a complete analysis of the element carbon from an all-round perspective.

This analysis may not necessarily discover anything, but at least it can help people have a theoretical guidance when exploring other properties of carbon in the future.

Unlike the discovery of graphene, which was obtained by repeatedly sticking and peeling graphite with tape, a two-dimensional structural material was finally obtained. There was a certain amount of luck involved.

After making a decision, Xiao Yi also breathed a sigh of relief.

At least there was a goal.

And compared to digging out the cause of carbon aperture acceleration, this goal was relatively easier.