v2 Chapter 425： Very high quality (2/2)

Qin Luoshuai blushed slightly when he was praised so much by a famous professor.

lucky?

Li Min shrugged his shoulders and smiled. During the physics experiment, the factor of good luck was not ruled out, but the premise of good luck was based on corresponding strength.

If you don't have this capability, don't mention using potassium permanganate as a catalytic reaction. You don't even know how to prepare graphene.

”Good luck is also part of strength. Qin has this strength.” Li Min said with a smile.

A bright smile appeared on Qin Luo's face when he heard Li Min's words.

”By the way, let's start testing the quality of graphene.” Li Min said.

After this period of cooling, the graphene in the beaker has solidified, and now it is time to check the quality.

Qin Luo nodded, carefully took out the graphene in the beaker, and put it into the infrared spectrometer.

After a few minutes, an infrared spectrum appeared in front of everyone.

Absorption peak: A wide and strong absorption peak appears in the range of 3000~3700cm-1.

Absorption peaks appear at 1723, 1382, 1221, and 1055 cm-1... and stretching vibration peaks -c=o appear.

In the O-H deformation vibration peak of 1382, the stretching peak becomes very weak. This result proves that the graphene has been successfully prepared.

In addition, the prepared graphene is of quite high quality, even better than the graphene prepared by the mechanical exfoliation method.

”Guru~” Looking at the infrared spectrum data in front of him, Li Min swallowed carefully.