Graphene Aerogel Synthesis - Part 1

This is the first video in a two part series. I had to split this into two videos because the vacuum pump in my freeze dryer needs some maintenance which should be done very soon.

I apologize for my voice, I am getting over a cold and still stuffed up.

Full synthesis process:

- Graphene oxide dispersion of 3-4 mg/ml of de-ionized water mixed uniformly with ethylenediamine at 20 μl/5ml and then sealed in a glass vial and heated for 6 -8 hours at 95 ° C (~205 ° F) for synthesis of functionalized graphene hydrogel (FGH).

- After cleaning in de-ionized water and freeze-drying, functionalized graphene aerogel (FGA) is produced.

- Last, the aerogel is exposed to MWI in an inert atmosphere for 1 min to give rise to the final ULGA.

[reallyMika]

This was satisfying on multiple levels. I could totally fall asleep to your voice lol.

[kenlee]

This morning I had an asterisk above my head and searched YT for ~ Carbon Areogel. I love You Tube!

[mouldykev]

More than Awesome, you promised this one ages ago lol.
But i forgive you ha ha can't wait for part 2 😎

[CarmeloVita]

Hi,
How did you put the container of essential oils in the oven? don't they melt?
where did you buy them?
Many thanks

[FHSWorld]

Hi Kingswell Labs, may I know the molarity of the EDA? What is the properties of the reducing agent so that it able to reduce the GO to aerogel form? I used pyrrole but it ends up like a dust particles

[OAI_FT]

We are looking for a method to synthesize highly oxidized graphene oxide by electrochemical exfoliation.
How did you synthesize your graphene oxide?

[shirleypriscillaonkani]

Hi, Kingswell Labs, I did enjoy your video it helped me a lot to understand the freeze-drying process, I have a question I don t want to synthesis an aerogel but a graphene oxide sponge. I use 10 mg/ml as a concentration and dispersed it in 200ml of water. after the ultrasonication process, I applied the hydrothermal method and freeze the solution before taking it to the freeze-dryer. but in the end, I did not get a sponge but the dust of particles. I try to understand what I have done wrong? Could you please assist? Thank you

[amirmohammadhosseini]

I done it, but after removing the container from the oven, the separate particles were at the bottom of the container and were not compact and in a molded form. I cant find the problem that is very kind of you to help me to find the problem

[ETMS.]

Sir ant alternative to EDA? Can I use DEA

[aristyosoecipto]

Hi! do you mind to share the reference of the experimental procedure?

[creamcookies]

Does the graphene oxide dispersion have to be 3-4 mg/ml? is it like the best concentration to use or can you use another concentration? Thank you!

[crb]

Spin a variable electromagnetic cylinder in a beaker of graphite oxide solution, make sure the liquid is spinning within the container as a result of the em cylinder motion. Add in your reducing solvent dropwise and Increase the magnetic field strength slowly, watch your graphene aerogel crystal puk grow. You're welcome ftf

[dedlunch]

Could you just use graphene instead of GO? I'm just not a fan of the modified hummers method to make GO

[gianniskarnis]

How do you remove the gel from the water without breaking it?