Kingswell Labs - 2019-04-24
This video shows and discusses the final steps to synthesising Graphene Aerogel. Due to lack of funding and time, this will be my last video for the foreseeable future. I will post any updates and/or other processes that I work on, but I don't know when that will be. Update: I am able to proceed further, new videos are on the way. Thank you for all the kind comments and I will still respond to any questions you may have.
Keep working, I am very impressed.
Thank you! I am working things out now. I should be back sooner that I anticipated.
You've earned my subscription. Good to see your update in the description!
keep up the great work.
Thank you sir/madam Dank Town! ;-)
@@KingswellLabs Thank you. Im a hemp grower and if you need starting material the hemp stalks let me know. Id love to do this for a project.
Hello, this was an amazing demonstration of the synthesis. I hope to see more such experiments in the future. It would be great if you could share the chemical reaction happening during the whole process.
Thank you
This is very cool. Thank you for sharing your work. Are you still working on this project?
Does this have any electrical conductivity? How about thermal conductivity? If it has high electrical conductivity and low thermal conductivity, it might turn out to be a good thermoelectric material.
time to start a patreon list and/or get some sponsorship. your work is really excellent! BTW, Have you thought about 3d printing this material? might look at the work out of Lawrence Livermore Labs on graphene aerojels... would love to see you give a formed electrode a try! Thanks,
Doug
Thank you so much! I have actually been working on getting funded which is why I haven't been posting videos. I have looked into the 3D printing process but the resulting material is very very brittle, the method I show make a much more mechanically robust material.
Would love to be able to purchase so of this from you for a project I'm working on . Thanks
Hi, very interesting video and thank you very much, please I want to hear your opinion on the application of graphene aerogel as electrodes in capacitive deionisation method of desalination of salty water.
I am glad you found it interesting! You have a good question, it's something I have been thinking about lately. I do think that could be a good application and I am thinking of testing it out. I believe the pore structure is correct and has the right volume/dimensions for filtration. As soon as my freeze drier is fixed, I will setup a test.
GREAT WORK BRO....
: ( We love you Kingswell!
You are too kind!
Hello. Congrats. Thank you very much for sharing such useful know how indeed.
I have a question. What is the reason to use quartz tube in microvawe? If other material like seramic or glass tiypes are used, what would happen? Does it effect the structure of graphene aerogel?
Can you share an experiment of making aerogel from Ti3C2 MXene powder.
do we have stats on the heat conductivity? on the one hand aerogel is a very good insulator on the other hand graphene is a great conductor.
I'm curious as to the potential applications of this material: could it be doped with an alpha emitter to provide heat and lower density further making a buoyant solid.
I am just looking at it's use as a battery electrode, but there are other uses like heat shielding and desalination as well. I don't know if what you stated can be done or is a good use of the material, but it's an interesting thought.
Buoyant solid is the most interesting application of this material in my opinion. We could build floating structures that for example hold up the shaft of a space elevator.
If I recall reading about what you are doing researchers were building relatively lightweight batteries with capacities and lifetimes rivaling lead acid cells. Hopefully replacing those some day. I wish I knew more. It's a good field of study. Best of luck to you.
@@P8qzxnxfP85xZ2H3wDRV I would think there are other materials better suited for buoyancy? Graphene Aerogel is highly conductive and not buoyant, although I will test out it's buoyancy and report back when I get a chance.. There is also a mind blowing property it has that I hope to show in a video sometime this year.
@@Slowly_Going_Mad Thank you! Yes I saw a paper fairly recently that showed great results in a battery which gives me hope. I am working to use this material in the glass-salt battery that I briefly showed in an earlier video.
Good work. Instead of E. D. A can we use another liquid
Thanks! Yes you can use other weak reducing agents. I have not used others, but you can search other research papers which have.
sounds like it's important to make sure all atoms of air argon
Great job.. You have any publication where I can learn about the entire process... Thanks
Thanks! I have not published a paper on this myself, I have pieced this procedure together from several papers. Search for:
"Ultra-light, compressible and fire-resistant
graphene aerogel as a highly efficient and
recyclable absorbent for organic liquids"
"Synthesis of Graphene Aerogel with High Electrical Conductivity"
"Ultralight and Highly Compressible Graphene Aerogels"
I hope this helps.
Hello! Other than freeze drying is there any procedure to retain the shape of the rGO. Actually, after hydrothermal synthesis, I have dried the 3D block in oven at 60°C and it transforms to very little quantity stone like solid powder, which is not light weight and very hard. Is there any drying procedure to get light weight rGO without freeze drying?
Could please explain how to prepare electrode using metal oxide nanocomposites
You should check out the cayrex2 channel, he has videos showing how to make carbon and manganese dioxide electrodes. If you want to know specifically how to use a metal oxide in the aerogel, I cannot answer because I haven't tried.
Just to update. I just tested adding MNO2 during the hydrogel process and it looks like it worked. I have many more tests to run and I need to send it off to be characterized, but looks promising so far.
Try patreon, that should get you some money and possible attention from "funders", also you might consider selling the product you make. Excellent work btw
What would you charge to send me some. Working on a project. Thanks
OK so you are skint ( UK for broke ) erm so how can some of us donate to a worthy cause ? i'm in your work must carry on Dude, Kev
lol I have never heard skint before. I wish I knew how to get funding! I am hoping I can save some money and get back up and running... I am still going to do whatever work I can. I hope you are doing well and get back to it as well!
@@KingswellLabs you should open up a patreon account, i am certain that people would donate. Your work is very important to us. I for one would donate.
Maybe even just a paypal account.
Oh and thanks for your comments, i may be back at it later on this year.
@@mouldykev Oh wow, I never considered going that route before but am considering it now, thank you. I know you are taking a break, but I would love to collaborate on some experiments in the future if you are interested. I have been so focused on the graphene that I haven't been thinking about the rest of the battery components as much as I would like.
In the video of synthesis of graphene aerogel -part 1, what was the thing you added by dropper to remove the hydrogel from the essential oil containers in the end.
I just used the water dropper to fill the essential oil container so when I place the container in water, the water doesn't rush in. I was being overly cautious, now I just use something like a spoon to scoop out the hydrogel... If done right, the hydrogel is fairly robust.
I wonder why it reach to final structure and elastic when we heat it.
As the GO reduces, the hydrophobicity of the
graphene sheets makes them aggregate, which makes the final structure. I believe the elasticity happens because of the porous structure and good links between the graphene sheets.
@@KingswellLabs thank you very much.
Fill your belly and have shelter. Kit parts will come for free, just watch for them.
Hi sir
I'm a Materials engineering student from Pakistan. I'm working on this topic graphene aerogel. I need some help. If you can I'll be really thankful to you
Hello, I am sorry for the delayed response, I youtube didn't alert me to your comment. I would be happy to help if you still are interested. just send me an email mike@kingswell-labs.com
what sort of application would something like this be used for?
This material makes an excellent battery/supercapacitor electrode, it has great thermal conductivity which can be used for a heat sink, and with altering the synthesis process it can be used in propulsion.
Is the electrical conductivty better then in copper?
Not in this form, it's usually about 40 ohm. The nature of the 3d structure increases resistance more than pure single layer graphene.
how light and how stable is the resulting aerogel?
inert gas get trapped in the gel?
The weight is very dependent of size, but what I show are in the 10s of milligrams.
This process produces a very stable and mechanically robust material.
The inert gas does not stay trapped in the material, it is porous enough for gases to escape.
@@KingswellLabs
so we are talking about 10 g per liter?
@@MusikCassette more like 2.5-5g per liter
Sorry you ran out of money….would you want to sell some of your graphene/aerogels?
Thank you, I unfortunately don't have anything left after sending out samples and experimentation. I am still working on getting funding so I will hopefully be back at it soon.
Have you made a part 2 yet?
You are watching it :)
@@KingswellLabs I meant part 3. Silly me
@@jakeaustin901 haha no worries, yes I will be making a follow up as soon as I figure out a process I am working on.
What is the role of E. D. A
EDA is used to reduce the GO and to assist in assembling the RGO into the 3D macro structure hydrogel.
make a vacuum balloon out of that and you shouldn't be short of cash bro.
I’m ruining the 69 comments giggity
What is the cost of making one of these?
It really depends on the equipment you have and your time.
The cost is low if you synthesize the GO yourself, but that requires a centrifuge (or time) and an ultrasonic probe... You can get away without those (like Robert Murray Smith did), but then the GO will be of very low quality.
Making the hydrogel is cheap and easy. But you will need to freeze dry, which you can build one yourself for a few hundred dollars. If you have all the equipment already than it's very low cost. I hope this helps.
@@KingswellLabs Do you have any recommendations for an ultrasonic probe? They seem to be multiple thousands of dollars.
@@colinleamy6199 I found mine on ebay, I would suggest look there, but you will end up spending several hundered dollars still.
What is the density of GO that you used ?
At last ! LoL
Ha! Yeah I wish I could have been more timely. :-)
@silversn4ke - 2020-05-12
This looks infinitely more simple than the silica aerogel production ive seen. WOW