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USA Graphite, Inc (USGT)

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Last Post: 4/11/2014 8:09:58 AM - Followers: 54 - Board type: Free - Posts Today: 0


 


Graphene, which is merely a single layer of carbon atoms, is the most conductive material in the world, both electrically and thermally.
It is incredibly strong, and yet the thinnest material in the known universe. Graphene enables CPUs that can operate at 300GHz or higher,
batteries that last 10 times as long, and petabit and exabit network transmission speeds. It even creates electricity when struck by light!


 


USGT - Graphite In The News


~ High-performance monolithic graphene transistors created

Researchers at the University of Erlangen-Nuremberg, Germany have created high-performance monolithic graphene transistors using a simple lithographic etching process. This could be the missing step that finally paves the way to post-silicon electronics.

As you probably know by now, graphene has a long and wonderful list of desirable properties, including being the most conductive material yet discovered. In theory, according to early demos from the likes of IBM and UCLA, graphene transistors should be capable of switching at speeds between 100GHz and a few terahertz. The problem is, graphene doesn't have a bandgap - an innate ability to switch on and off, depending on the voltage; it isn't a natural semiconductor, like silicon - and so it is proving very hard to build transistors out of the stuff. Until now!



~ Graphene: The perfect water filter

In an experiment, the University of Manchester researchers filled a metal container with a variety of liquids and gases and then covered it with a film of graphene oxide. Their most sensitive equipment was unable to register any molecules leaving the container, except water vapor. The graphene oxide filter even prevented helium gas from escaping, which is notoriously finicky.

This fantastical feature joins a huge list of properties that have led graphene to be called a "wonder material." Graphene, which is merely a single layer of carbon atoms, is the most conductive material in the world, both electrically and thermally. It is incredibly strong, and yet the thinnest material in the known universe. Graphene enables CPUs that can operate at 300GHz or higher, batteries that last 10 times as long, and petabit and exabit network transmission speeds. It even creates electricity when struck by light!
 

The graphene oxide water filter


~DoE calls for a chemical battery with 5x capacity, within 5 years - can it be done with Graphite?

The Department of Energy wants batteries with five times the energy storage of those we have today. They want them to be five times cheaper and to be ready in five years. Earlier this year the Department's solicitation for proposals was announced, and now five universities have been chosen for the job along with several national labs and private companies. According to US Energy Secretary Steven Chu, a "Manhattan Project-like atmosphere" is to be fostered.
Lots and lots of batteries



~ Cheap, graphene-based solar cells could be just years away

Today's solar cells are usually made out of silicon that is too expensive to be cost-effective for the everyday consumer because highly purified, turned into crystal, then sliced thin. Because of the cost, researchers have been looking for affordable alternatives, settling on indium tin oxide used inside hybrid or nanostructured solar cells. Though indium tin oxide is becoming more prevalent - it's used in items likes smartphone touch screens - the indium is still quite expensive. However, by creating a solar cell using everyone's favorite wonder material, graphene, MIT scientists might have found a cheaper and more malleable alternative to indium tin oxide.

Graphene solar cellSolar power

~ The top tech and science breakthroughs of 2012

Without batteries we wouldn't have smartphones, remote controls, pacemakers, or just about any digital device. It is unfortunate, then, that batteries - being physical, chemical devices - have not scaled at anywhere near the same rate as computers, which are governed by Moore's law and Dennard scaling. As a result, our computers - and especially our mobile devices - go from strength to strength, but if anything our battery life is actually decreasing. A sticky situation if there ever was one; even the Department of Energy realizes the pinch we're in and has put out a plaintive plea for a battery with 5x today's capacity, within 5 years.
IBM's lithium-air battery

~ Rice University creates graphene/nanotube hybrid material that could redefine electronics and energy storage

To create the hybrid material, the James Tour Group at Rice University began with a copper substrate coated in a single layer of carbon atoms (graphene). From here, the process is a little bit mystical - it sounds like they place a mixture of aluminium oxide and an "iron catalyst" on the graphene, and heat the whole thing in a furnace. Within a few minutes, carbon nanotubes skyscrapers spring up from the graphene.

Graphene/nanotube hybrid material process

As you can see in the picture below, we're quite literally talking about a sheet of graphene with carbon nanotubes growing upwards from it - up to a distance of 120 microns (0.12mm), which is really rather impressive at this scale. If we scaled it up to actual trees, they would rise into outer space. As you can see in the image at the top of the story, the carbon nanotube forest is also very dense. The most important thing, though, is that the bonds between the graphene and nanotubes are completely seamless - as far as electrons are concerned, there is absolutely no resistance when transitioning between graphene and nanotube.
A simulation of the graphene/carbon nanotube material, showing the covalent carbon bonds
 




~ IBM creates first high-density, self-assembled carbon nanotube computer chip

IBMers at the Watson Research Center in New York have become the first scientists to create high-density, working computer chips from carbon nanotube transistors fashioned using conventional semiconductor processes. With a density of one billion transistors per square centimeter, and performance in the region of five times faster than silicon transistors, IBM's breakthrough indicates that carbon nanotubes will be the semiconductor that eventually replaces silicon in computer chips.

IBM's carbon nanotube FETChemical diagram of IBM's carbon nanotube FET, deposited on hafnium dixode
 




~ MIT creates carbon nanotube pencil, doodles some electronic circuits

In a normal pencil, the lead is usually fashioned out of graphite and a clay binder. Graphite, as you may already know, is a form of carbon that is made up of layer after layer of the wonder material graphene. When you write or draw with a graphite pencil, a mixture of tiny graphene flakes and clay are deposited on the paper, creating a mark. (Incidentally, pencil leads never contained lead; it's just that when graphite was first used in the 1500s, they thought it was lead ore, and the name stuck).

With MIT's carbon nanotube pencil, the lead is formed by compressing single-walled carbon nanotubes (SWCNT), until you have a substance that looks and behaves very similarly to graphite. The difference, though, is that drawing with MIT's pencil actually deposits whole carbon nanotubes on paper - and carbon nanotubes have some rather exciting properties.
Drawing a sensor, with a carbon nanotube pencil
 



 

 


 

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USGT
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USGT News: Veteran Geologist Joins USA Graphite Exploration Team -- USGT Names David A. Bending as Senior Geologist 11/12/2013 04:15:00 PM
USGT News: USA Graphite Completes Initial Site Inspections and Sampling Program at Nevada Graphite Properties 10/29/2013 07:15:00 AM
PostSubject
#15281  Sticky Note IRP's: As Shelly mentioned last week, if IH Admin [Linda] 01/23/13 04:04:55 PM
#18574   They must be doin a lot of digging Hanover1 04/11/14 08:09:58 AM
#18573   thank you for the info - sent them Nkore 03/14/14 10:35:56 AM
#18572   Found a new number on their latest PR. Hanover1 03/14/14 09:04:45 AM
#18571   The website is a year out of date. Hanover1 03/14/14 08:57:33 AM
#18570   Can you provide a link were he was Hanover1 03/14/14 08:13:44 AM
#18569   This was an APS stock. This is integral 03/13/14 05:59:19 PM
#18568   Just saw this on the Wowza board. Why homeboy4u 03/11/14 08:53:30 AM
#18567   Well, that was awhile back. Dont see this Hanover1 03/11/14 01:09:13 AM
#18566   why you say something brewing? Don Quixote 03/10/14 02:32:17 PM
#18565   New position added today Nkore 03/05/14 02:12:32 PM
#18564   volume is over average yesterday... something brewing?? GO USGT! Hanover1 02/19/14 08:12:19 AM
#18563   Ok USGT.. Patients is a virtue right? Hanover1 02/14/14 08:31:50 AM
#18562   Should jump back up to .07 Seems to Hanover1 01/09/14 08:41:09 AM
#18561   Im pulling for .08 by this Friday! GO USGT Hanover1 01/06/14 08:40:40 AM
#18560   Big problem going down 0.03 sedrik 01/04/14 11:12:50 AM
#18559   looking good this stock go Up next week sedrik 01/02/14 09:59:20 AM
#18558   Here's the big problem with this company. biglued1 01/02/14 12:31:59 AM
#18557   Looking forward to it! Go USGT...Happy New Year! Hanover1 12/31/13 04:34:03 PM
#18556   This stock go up friday we will 0.6 sedrik 12/31/13 11:38:10 AM
#18555   seeking alpha China need more graphite prom USA sedrik 12/30/13 03:31:50 AM
#18554   Boom next 14 day we will see sedrik 12/29/13 07:53:11 AM
#18553   Price Spike possible Hanover1 12/27/13 08:39:36 AM
#18552   This stock is on sale right now! Hanover1 12/27/13 08:29:34 AM
#18551   There is no fruit. Never was any. Just eelfland 12/12/13 03:59:21 PM
#18550   .....still waiting for the fruits...... biglued1 12/02/13 11:56:34 PM
#18549   Looking forward to the fruits of your DD BTRAI76 Lakeratz40 11/23/13 05:55:50 PM
#18548   looks very interesting here.. doing my dd BTrai76 11/22/13 01:25:50 PM
#18547   Golden cross setting up on USGT, frebet 11/16/13 09:56:16 AM
#18546   Positive direction yesterday. Make it two days in row! Hanover1 11/08/13 06:35:17 AM
#18545   It was meant to be. Geesh. biglued1 10/07/13 09:53:01 PM
#18544   I worked there for 7 years. Your Dunphy777 10/05/13 05:36:30 PM
#18543   Working in the desert in the heat is biglued1 10/04/13 09:12:07 PM
#18542   So just as winter is ready to arrive Dunphy777 10/02/13 08:39:04 AM
#18541   Sure he does. A middle name, a bad eelfland 08/29/13 07:37:15 PM
#18540   Found it. This guy owns nothing. mkendra 08/13/13 02:40:24 PM
#18539   Furthermore, I don't think the 10-K is audited mkendra 08/13/13 09:00:29 AM
#18538   Technically bankrupt? mkendra 08/13/13 08:52:50 AM
#18537   What, "somebody" painted this with a $7 trade, eelfland 07/17/13 02:43:52 PM
#18536   ~ $USGT ~ Daily Par Sar Buy Signal Fa$tlane 07/11/13 07:58:18 PM
#18535   The NT form has still has a New mkendra 06/28/13 01:28:00 AM
#18534   It appears CEO Yamamoto failed to file the integral 06/17/13 03:13:32 PM
#18533   Traded this one a while back and looking nvidiaforgames 06/17/13 11:03:18 AM
#18532   Just marked the board nvidiaforgames 06/17/13 11:02:42 AM
#18531   This one looks ready here! nvidiaforgames 06/17/13 11:02:07 AM
#18529   It's looking now as if it was a eelfland 06/12/13 04:54:31 PM
#18528   "watch what happens to this 15 center. KA-BOOOOOOOOOOOOM biglued1 06/10/13 11:53:41 PM
#18527   For what products? mkendra 06/06/13 04:46:07 PM
#18526   raisen "" shine coming Tonyeight 06/05/13 06:45:52 PM
#18525   graphite will be huge demand soon $$$$$$$$$$ Tonyeight 06/05/13 06:45:26 PM
#18523   today were all grahite sec down====== Tonyeight 06/05/13 06:44:16 PM
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