Across the entire North America, samples from the Sarrot Laboratory in Silicon Valley were sent to the Frick Chemical Laboratory.

After signing the parcel, Lu Zhou took the sample to the rented laboratory.

Recently, he learned that in addition to applying for the school's research fund, Frick Chemical Lab not only provides paid third-party testing services, the lab can be rented for a fee, and the instrument's machine time is also available for purchase.

The fees for third-party testing services are generally more expensive, tens of thousands or even hundreds of thousands of dollars, but if you rent an instrument to do the experiment, the price is within an acceptable range.

After completing the procedures for renting the instrument, Lu Zhou and Professor Chiric called and borrowed a doctoral student as an assistant.

Like last time, this time is the same Connie.

This doctoral figure, like the rugby player, is much more sturdy than when he saw it last year.

Looking at Connie with a smile, Lu Zhou's expression is a bit weird.

"Are you turning to research biology?"

“No,” Connie snorted. “Why are you asking?”

"Nothing..." Lu Zhou shook his head. "Forgot, when I said nothing."

It always feels that if his physique continues to expand, he has the potential to develop into the Hulk Hulk.

But when this is said, it is too hurtful.

"...I actually know what you want to say," Connie sighed and scratched her head with some distress. "Because I am too big, Professor Chiric always refuses to touch the experimental instruments and worry about me." Get rid of those things."

"This is too..." Looking at Connie, who was depressed, Lu Zhou didn't know how to comfort him. "In short, I won't be like this to you."

To say that the block is the head, Professor Crich is not too small, and he is at least a small forward on the basketball court.

With the nose wiped, Connie was moved: "Really? What do you need me to do?"

Lu Zhou slightly squinted at the scanning electron microscope in the laboratory, and finally couldn't let it go: "In short... you want to help me with the sample processing, you should."

Connie grinned and said: "Package on me!"

After taking out more than 30 samples sealed in small glass jars, Lu Zhou ordered some important things to be aware of after Connie, carefully removed a small amount of black powder from the glass jar marked with No. 1 sample, and Mix well with ionized water.

Before the shipment, Sarrot had already processed the samples, and in addition to containing a small amount of impurities that could not be filtered, the powders had reached laboratory purity and no further filtration was required.

However, it is definitely not possible to insert the sample into it. The agglomeration of the hollow carbon sphere itself will make the observation effect worse.

With the help of Connie, Lu Zhou took the trouble to ultrasonically disperse each sample, and then carefully sampled with the plastic dropper, and then all the samples were dropped on the copper.

"Get it!"

Finally, all the samples were processed, and the last piece of the boat was put down, and the last piece of copper was put down, stretched out, and some stiff neck was moved.

Since the carbon material itself is a conductive material, it is still simple to handle, and this step is completed. If it is an insulator material, the sample must be steamed.

Does it sound expensive?

In fact, it is not expensive.

At least gold is a relatively inexpensive consumable compared to other precious metals and organic reagents consumed in the laboratory. For the samples sent by Sarrot, the average cost per milligram is more than one hundred dollars.

Therefore, Lu Zhou is so cautious that there is a reason. After all, he spends his own money on experimentation.

Fortunately, Connie, who was an assistant at the side, did not live up to his hopes, and a sample did not mess up. Putting down the last piece of copper, Connie asked Lu Zhou.

"I am also ok here, what are we doing next?"

After thinking about it, Lu Zhou said: "First scan it with a scanning electron microscope."

The rest of the work is very simple. Lu Zhou operates the instrument step by step, sticking the copper piece carrying the sample to the conductive tape of the sample holder, and then feeding it into the sample chamber.

It was confirmed that the vacuum pressure in the sample chamber was kept at a stable value, and Lu Zhou was self-speaking and skillfully inputting various parameters.

"The emission current is set at 10a, the working distance is 8mm, and the scanning mode is sei..."

Through the two joysticks on the sample controller, the boat carefully moved the position of the sample stage, and Connie stood in front of the computer, adjusting the aperture and accelerating voltage according to his requirements.

After completing this step, all the work is ready.

Finally, it is time to harvest the fruits of victory.

This process is much more enjoyable than the complicated and complicated operation in the front.

By adjusting the resolution of the computer, adjusting the accelerating voltage and working distance, and switching the detector, Lu Zhou can easily collect any data he wants.

Looking at the instruments at work, Connie, who operated the computer, couldn't help feeling.

"This stuff is much easier to use than a normal electron microscope."

"That is a must," Lu Zhou said with a smile. "If the experiment is going well, I can give it to you when you have a lot of unused machines."

Connie was excited: "Really? Thank you so much!"

Although his boss can also use SEM, it is clear that Professor Chiric will not waste his time on his student's doctoral thesis. After all, his students are too many, and they are too fast to manage.

At this moment, the Lu Zhou standing in front of him is like an angel, oh no, God.

Lu Zhou smiled and didn't care too much. "Of course it is true. As long as you do what I said, I will definitely not let you work."

After receiving the promise of Lu Zhou, Connie apparently became more energetic.

As the resolution is gradually enlarged, at the nm scale, the microstructure of the hollow carbon sphere is presented unreservedly in front of the two.

Looking at the pictures that were swept out, Lu Zhou suddenly felt a move.

He thought of something, and immediately said.

"Connie, help me to screen hollow carbon nanospheres with a specific surface area in the range of [2326m2g-1, 3762m2g-1] and a diameter of [60nm-70nm] from these samples!"

"Okay," Without any hesitation, Connie immediately began to operate the computer. After comparing the data, he quickly reported, "...Reporter, samples 11, 14, 15, and 23 are all in line with your requirements. What is the indication?"

The corresponding glass jar was removed from the sample price, and Lu Zhou stared at the black powder in the glass jar, facing Connie.

"I need you to do one thing now."

Connie said seriously: "You are told."

“Help me to borrow a battery tester and a button-type battery mold.” Looking around the lab, Lu Zhou continued, “and some samples of elemental sulfur.”

"I want to do something big."