Chapter 440 Jedi Comeback

At this moment, Sun Zhendong was very fortunate. If he stayed in Yanda now, I am afraid that even he would be a joke.

"The teacher is right, what Qin Luo is just an idiot." Charles smiled all over his face as he spoke.

That's right, in his opinion, Qin Luo is a real idiot.

However, in the next second, Charles' eyes widened.

Under the surprised eyes of everyone, Qin Luo, who had not moved for a long time, finally moved.

He picked up the bottle of "potassium permanganate" from the laboratory bench.

Then poured into a beaker!

He actually used potassium permanganate!

The next moment, everyone's eyes widened, staring at Qin Luo, and Charles' eyes were full of scarlet and his face was full of disbelief.

When Qin Luo poured potassium permanganate into the beaker, the beaker that had stopped reacting suddenly boiled.

The temperature of the reaction continued to rise and soon exceeded 90 degrees!

One minute, two minutes, five minutes, ten minutes...

The reaction continued and showed no signs of stopping.

If it's just this, then forget it. What's more terrifying is that a layer of black material is being deposited at the level of the beaker.

That is the reduced graphene! And it's not that small!

"It's impossible!" Charles couldn't help but let out a desperate roar.

Once Qin Luo successfully prepared graphene, it would be a disaster for him.

Compared with Charles' eagerness, Sun Zhendong is much calmer.

"Calm down, until the result is confirmed, we don't know who will kill the deer." Sun Zhendong turned to look at Charles with a flash of disappointment in his eyes.

"But..." Charles wanted to say something, but looking at Sun Zhendong's cold eyes, he swallowed the words again.

Looking at Qin Luo's stirring right hand, and the black blocks that were constantly condensing at the bottom of the cup, Sun Zhendong's face became more and more gloomy.

Test Bench……

The test continues, and the temperature in the beaker keeps rising, reaching 98° in the blink of an eye.

At the same time, Qin Luo took down the H2O2 reducing oxidant from the shelf.

H2O2 reduces oxidants!

The silent crowd boiled again, not only adding potassium permanganate, but also adding H2O2 reducing oxidant!

The originally calm beaker boiled again.

The rapid reaction lasted for a few minutes. When the reaction temperature just dropped, Qin Luo picked up tweezers, clamped the mouth of the beaker, and washed with dilute hydrochloric acid solution and deionized water with a volume ratio of 1:10 until no sulfuric acid was detected in the filtrate. until.

At this moment, at the bottom of the beaker, a layer of graphene is looming.

Looking at the layer of black material at the bottom of the cup, the entire studio was silent, and everyone opened their mouths wide, dumbfounded.

No one could have imagined that things would turn out like this. Originally, Qin Luo had been considered impossible by everyone, but now, that thick layer of graphene slapped everyone present in the face!

In this short ten minutes, Qin Luo completed the earth-shaking transformation.

It worked! Qin Luo successfully prepared graphene by redox method.

Seeing this scene, the corners of Wang Xuecai's mouth showed a slight smile. He turned to look at his companion who was dumbfounded beside him, with a proud expression: "Lao Zhou, Lao Song, what did you just say?"

say what?

Zhou Haizhong and Song Baoguo looked at each other and smiled bitterly.

"Pharaoh, honestly, did you already know that Qin Luo could prepare it?" Zhou Haizhong asked.