v2 Chapter 423： Preparation of Graphene by Redox Method

Tesla corporate headquarters...

Qin Luo had put on his overalls and walked into the laboratory.

"Professor Qin, here are our test materials for these two days, you can look at them." Li Min smiled and handed a bunch of materials to Qin Luo's hands.

Qin Luo wouldn't be polite about things that could help him, smiled, and carefully looked up the information.

But the next second, Qin Luo frowned.

"Professor Li, do you use the mechanical peeling method?"

The graphene produced by mechanical exfoliation method produces high-quality graphene. The exfoliated graphene is generally a few hundred nanometers or micrometer graphene sheets. The yield is very low and the transfer is also very challenging.

"Well, the quality of composite materials for graphene must be very high. In order to ensure that it is foolproof, we chose the mechanical peeling method." Li Min said.

There are 5 commonly used methods for the preparation of graphene, 1 redox method, 2. mechanical stripping method, 3. liquid phase stripping method, 4. low pressure chemical vapor deposition method, and 5. atmospheric pressure chemical vapor deposition method.

The five preparation methods have their own merits. Among them, the oxidation-reduction method has the highest preparation efficiency, but the quality of the prepared graphene is relatively low.

However, the mechanical exfoliation method is difficult to prepare and the efficiency is slow, but the quality of the graphene prepared is the highest.

However, if you want to composite graphene and oxide, this places extremely high requirements on graphene itself, which is why Li Min chose the mechanical peeling method.

"Professor Qin, which method do you want to use?" Li Min asked.

"I want to make graphene through redox."

Uh……

After saying a word, all four were shocked.

Everyone's eyes widened, staring at Qin Luo firmly.

Redox method, the quality of the graphene prepared in this way is too low to be composited with other materials at all.

There is a more important point, oxidation-reduction reaction is the field of chemistry, Qin Luo still wants to get involved in chemistry.

It's impossible to think about it, right?

"Student Qin, are you kidding me?" Ou Chen hesitated for a while before asking aloud.

To be honest, he is not optimistic.

"En." Qin Luo nodded and said, "Judging from the current situation, this is the fastest way."

It's almost fast, but it's really doing useless work!

Li Min really doesn’t want to hit Qin Luo, but now he has to say: “Professor Qin, although the oxidation-reduction efficiency is indeed very high, I have to tell you that graphene prepared by oxidation-reduction is simply impossible to compare with others. Material composite."

"Perhaps?" Qin Luo shrugged his shoulders and said, "How can I know if I don't try?"

"Hey~" Li Min sighed and slowly said, "If you can help me, let me know."

"If I can, I need some graphite powder, potassium permanganate, concentrated sulfuric acid, hydrochloric acid..."

Listening to Qin Luo's words, Li Min's mouth twitched.

He can see that Qin Luo is determined to use the redox method to prepare graphene.

But what the **** is potassium permanganate?

Li Min has never heard of the need for graphene!

"Oh~" Li Min sighed helplessly, and waved with the assistant beside him: "Bring what Professor Qin needs."

The assistant nodded and turned and left.

When he reappeared, there was an extra trolley in his hand.

The trolley is full of various chemical materials.