New method to produce Graphene

[IndianaBoys]

Green Graphene

For those interested in graphene production, Robert Murray-Smith has a new YouTube up on the production of Graphene in a Green kind of way:

Green Graphene
Green Graphene - YouTube

Published on Apr 11, 2013

This is a green method as I know it troubles people. My source of graphite is Online Store — GS International & the RS Group they sell small samples at a good price. I have written a book about this and you can get it from https://www.smashwords.com/books/view... though you don't need to all the information for doing the experiment and all the other graphene experiments are in the videos. But if you wish to, it makes a handy reference and I would appreciate it. The money raised from the sales will certainly go to further experiments.
Anyhow the method here uses
100mL of water
2.4g of sulhuric acid at 98%
30% sodium hydroxide solution
graphite
10 volt power supply
2.5 volt power supply
and that's it. You can use a weaker acid - just adjust the amount you add for molarity. You can also use different voltage power supplies but you will need to adjust the resistance to maintain a constant current density.
It is certainly a very green method and really quite a safe method - well as safe as any chemical experiment can get - you really don't want to go drinking the stuff! It's based on two papers - 'High quality thin graphene films from fast electrochemical exfoliation', by Su et al and 'Greener electrochemical synthesis of high quality graphene nanosheets directly from pencil and its SPR sensing application', by Singh et al if you want to look them up for yourself.

[IndianaBoys]

Supercapacitors 101 - A home Inventors Handbook

Just found another book Roberrt Murray-Smith just released on building SuperCapacitors for those interested:

Supercapacitors 101 - A home Inventors Handbook
Smashwords — Supercapacitors 101 - A home Inventors Handbook — A book by Robert Murray-Smith

By Robert Murray-Smith
$2.99 Rating: Not yet rated.
Published: April 14, 2013
Words: 18,667 (approximate)
Language: English
ISBN: 9781301794362


Short description
The supercapacitor is an emerging technology that promises to play an important role in meeting the demands of electronic devices and systems both now and in the future. This book traces the history of the development of the technology, and explores the principles and theory of operation as well as giving some guidance on the methods for producing the materials required to construct one


Extended description
This book is best used in conjunction with the youtube videos found at youtube.com/user/RobertMurraySmith where I will be happy to answer any questions you may have. The electrochemical supercapacitor is an emerging technology that promises to play an important role in meeting the demands of electronic devices and systems both now and in the future. This book traces the history of the development of the technology, and explores the principles and theory of operation as well as giving some guidance on the methods for producing the materials required to construct a supercapacitor . The use of supercapacitors in applications such as pulse power, backup sources, and others has many advantages over alternative technologies and until recently was well beyond the scope of the home experimenter. However, with the help of this book it is now possible for everyone to become involved in this exciting field of energy development.

What a great resource!

Education that can be put into immediate replication with an end result of something that works!

Please visit the above link and get the book to support more research like this that is supportive to us all.

IndianaBoys

[anut]

I have replicated the Keshe's cola bottle experiment. Like you, I also ended up with a black layer covering the copper electrodes. According to one of Keshe's patents, this black coating only forms on the unimmersed part of the electrodes. It does not normally form on the immersed part of the copper electrodes. Keshe believes that this is not the result of any chemical reaction because the black layer forms in the absense of any liquid solution. Hence, according to his patent, there is a nuclear reaction.

I would not rule out the possibility of nuclear reaction at this stage. But I would rather be a bit more skeptical because of two reasons. First, I have observed a black layer coating the immersed part of the electrodes. Second, the black coating may well be copper oxide, which is also black in color.

Have you done any experiment to test if the black layer is copper oxide instead of graphene???

[tachyon]

take a multimeter if it conducts its graphene , copper oxide has poor conduction

[anut]

take a multimeter if it conducts its graphene , copper oxide has poor conduction

no... not conducting for me...

[IndianaBoys]

Graphene from table sugar - the Tang Lau Method

More How To's from Robert Murray-Smith

Graphene from table sugar - the Tang Lau Method
https://www.youtube.com/watch?v=25tS1lmZIRw

Published on Apr 21, 2013

I have written a book about this and you can get it from https://www.smashwords.com/books/view... though you don't need to all the information for doing the experiment and all the other graphene experiments are in the videos. But if you wish to, it makes a handy reference and I would appreciate it. The money raised from the sales will certainly go to further experiments. This is the tang lau method - essentially you use any where between 0.05 and 0.5 M solution of sugar - fructose, sucrose, glucose they all work. You heat it from between 165 - 220 degrees centigrade in an autoclave for between 1 and 7 hours and pour it out. A graphene oxide layer will form the thickness of whic depends on the time you heat it for, the concentration of sugar and the heat of the oven. Once you have got your layer you need to anneal it at 350 degrees and exclude air by wrapping in foil of some kind. I liked the method - I just thought it was rubbish for producing larg amounts - but something to work with.

[IndianaBoys]

Air Stable Iron nanoparticles from green tea and HTC

More great demonstrations by Robert Murray-Smith we can do at the home level:

Air Stable Iron nanoparticles from green tea and HTC
https://www.youtube.com/watch?v=MSwoZ_rBdyI

Published on Apr 21, 2013

I am pretty sure you could use this method for other nanoparticles - like copper for instance. But an interesting method I though


HTC = Hydrothermal carbonization
Hydrothermal carbonization - Wikipedia, the free encyclopedia

[IndianaBoys]

Microwave Exfoliation of Intercalated Graphite

For those following along, the latest from Robert Murray-Smith!

Microwave Exfoliation of Intercalated Graphite
https://www.youtube.com/watch?v=yElNtS1QXA4

Published on May 1, 2013

About halfway through i cracked the glass. Boy did it make me jump. Next time i think i will do 10 seconds then 10 seconds rather than 20 all at once. Still the exfoliation volume was truely astounding. In the first experiment i put a tespoon of the intercalated graphite in a jam jar and it filled the jar!

IndianaBoys

[chem monkey]

new materials

Have a look at this
Magnetic Sunlight Motor - Free Energy Anyone ? - YouTube
is a possible engine made from a naturally occurring high crystalline high diamagnetic graphite and then have a look at this
Conductive Ink - YouTube
it is for a conductive ink that’s makes the competition look like pants.
You can get these things really easily from
https://sites.google.com/site/thinkinkfactory123
for the ink and diamagnetic graphite. And they are cheap!