Navigation Links
Liquid method: pure graphene production
Date:5/30/2010

HOUSTON -- (May 30, 2010) -- In a development that could lead to novel carbon composites and touch-screen displays, researchers from Rice University and the Technion-Israel Institute of Technology today unveiled a new method for producing bulk quantities of one-atom-thick sheets of carbon called graphene.

The research is available online in the journal Nature Nanotechnology.

When stacked together, graphene sheets make graphite, which has been commonly used as pencil lead for hundreds of years. It wasn't until 2004 that stand-alone sheets of graphene were first characterized with modern nanotechnological instruments. Since then, graphene has come under intense scrutiny from materials scientists, in part because it is both ultrastrong and highly conductive.

"There are high-throughput methods for making graphene oxide, which is not as conductive as graphene, and there are low-throughput methods for making pure graphene," said lead co-author Matteo Pasquali, professor of chemical and biomolecular engineering and chemistry at Rice. "Our method yields very pure material, and it is based on bulk fluid-processing techniques that have long been used by the chemical industry."

Pasquali said the research team found it could dissolve graphite in chlorosulphonic acid, a common industrial solvent. The researchers had to devise new methods to measure the aggregation of the dissolved graphene flakes, but at the end the team was pleasantly surprised to find that the individual graphene layers in the graphite peeled apart spontaneously. The team was able to dissolve as much as two grams of graphene per liter of acid to produce solutions at least 10 times more concentrated than existing methods.

The researchers took advantage of novel cryogenic techniques for electron microscopy that allowed them to directly image the graphene sheets in the chlorosulfonic acid.

"We applied new methods that we had developed to directly i
'/>"/>

Contact: Jade Boyd
jadeboyd@rice.edu
713-348-6778
Rice University
Source:Eurekalert

Page: 1 2

Related biology technology :

1. AutoImmune Inc. Announces Shareholder Approval of Plan of Complete Liquidation and Dissolution
2. Water Filtration and Liquid Separation Training by the American Filtration and Separations Society.
3. Mescal worm test shows DNA leaks into preservative liquids
4. Genaera Liquidating Trust To Sell Remaining Proprietary Assets
5. New Constant Diameter NeedleProbes™ with Unique Ability to Measure Liquid Surface Properties by AFM
6. 0.2 second test for explosive liquids
7. Los Gatos Research Introduces Second Generation Liquid-Water Isotope Analyzer
8. Pharmacy Compounds Liquid Mupirocin for the Chronic Sinusitis Patient
9. 4th BTLtec Conference on 24-25 Sep in Graz, Austria features Biomass to Liquids Innovators Sharing Updates on Pyrolysis and Gasification Technologies, Syngas Application, BTL Value Chain and a Site Visit to the Biomass CHP Gussing Plant.
10. TransTech Services Partners, Inc. Shareholders Approve Plan of Liquidation; Company To Distribute Amounts in Trust
11. Ganeden Biotech, Liquid Health Labs Unveil New Drink Technology
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:1/15/2014)... JOSE, California , January 15, 2014 ... cancer, today announced the appointment of Thomas C Reynolds MD, ... 20 years, development experience gained in the biotechnology industry, most ... "I am delighted to welcome Tom at this transformative time ...
(Date:1/15/2014)... Reston, VA (PRWEB) January 15, 2014 ... education have continued their sponsorship of an annual competition ... interest in, and access to, innovative STEM study. The ... , TEAMS: Tests of Engineering Aptitude, Mathematics, and ...
(Date:1/15/2014)... AudioNotch is the internet's leading provider of ... of tinnitus. Patients listen to sound therapy that is ... of weeks to months, their tinnitus volume decreases. , AudioNotch ... Music and Notched White Noise. Now, AudioNotch is pleased to ...
(Date:1/14/2014)... , Jan. 14, 2014  3D Communications, a leading provider of ... regulatory, business, and media events in the United States ... former associate Virginia Cox , JD, is returning to the ... Virginia Cox re-joins 3D after more than two years of ...
Breaking Biology Technology:Oxford BioTherapeutics Appoints Thomas C Reynolds MD, PhD to its Board of Directors 2Oxford BioTherapeutics Appoints Thomas C Reynolds MD, PhD to its Board of Directors 3Technology Student Association Partners with Leaders in STEM Education Advocacy for Annual Competition 2Technology Student Association Partners with Leaders in STEM Education Advocacy for Annual Competition 3Technology Student Association Partners with Leaders in STEM Education Advocacy for Annual Competition 4Technology Student Association Partners with Leaders in STEM Education Advocacy for Annual Competition 5Former FDA Associate Commissioner Returns To 3D Communications 2
... Wis. - Building the Merge Healthcare ... explains, will mean offshoring 150 jobs to a "more ... reduce 28 percent of the financially troubled medical imaging ... Japan to regain the competitive edge marks the centerpiece ...
... people, a natural biological response to the phrase securities law ... the outside of the cornea wall, coupled with a dull ... my best to stick to the essentials. As a result, ... company is raising capital, it is important to contact an ...
... Wisconsin organizers of Make Mine a $Million ... May as Wisconsin does its part to take one ... , ,Although the date of the awards program has ... including Make Mine a $Million members - soon will ...
Cached Biology Technology:Merge offshoring jobs to "more cost-effective" workforce 2Merge offshoring jobs to "more cost-effective" workforce 3Securities compliance is part of raising capital 2Securities compliance is part of raising capital 3Securities compliance is part of raising capital 4Make Mine a $Million shoots for May program 2Make Mine a $Million shoots for May program 3
(Date:7/9/2014)... an associate professor of plant pathology and microbiology ... awarded the 2014 Alexopoulos Prize by the ... advancing the science of mycology the study of ... lichens, plant pathogens, and medically important fungi. , The ... early-career mycologist. Stajich received the award last month in ...
(Date:7/9/2014)... Research Centre (CNIO) have discovered that NANOG, an essential ... in stratified epitheliathose that form part of the epidermis ... vaginain adult organisms. According to the conclusions of the ... this factor could also play a role in the ... oesophagus and skin. , The pluripotency factor NANOG is ...
(Date:7/9/2014)... the puzzle behind nature,s ability to split the ... the development of artificial photosynthesis for clean, green ... international collaboration of scientists led by researchers with ... the SLAC National Accelerator Laboratory. , Working ... world,s most powerful x-ray laser, the researchers were ...
Breaking Biology News(10 mins):UC Riverside plant pathologist receives national recognition 2CNIO scientists discover that pluripotency factor NANOG is also active in adult organisms 2Postcards from the photosynthetic edge 2Postcards from the photosynthetic edge 3
... of Technology have created a new sampling device that ... pneumonia each year. Called PneumoniaCheck, the device created ... of diagnosing pneumonia, which is a major initiative of ... Pneumonia, an inflammation of the lungs, kills about ...
... a method based on geographic positioning systems that allowed ... in a way similar to how geographers characterize mountain ... that reflects how "rugged" the surface of the tooth ... the shearing molars in insect eaters and omnivores to ...
... 18, 2011) -- A University of Arizona College of ... robots for planetary exploration will be featured in a ... "WaveLengths." The robots will be featured on the ... MST on public television KUAT Channel 6. "WaveLengths" is ...
Cached Biology News:A better way to diagnose pneumonia 2A better way to diagnose pneumonia 3UMass Amherst biologists use GPS to 'map' bats teeth to explore evolutionary adaptations to diet 2Planetary exploration robots to be featured on science program 'WaveLengths' 2