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Latest Graphene oxide Stories

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2012-07-11 09:30:32

redOrbit Staff & Wire Reports - Your Universe Online Researchers are one step closer to solving the mysteries of graphene, the carbon allotrope that could be the basis for the next generation of sensors, transistors, processors and more - if scientists can find a way to produce it in large quantities and mold it into the shape necessary to power future devices. One of the major problems with the material is that it is difficult to grow it into a layer that is only a single atom...

2012-03-27 08:57:07

Researchers in South Korea and CWRU devise new process Mixing a little dry ice and a simple industrial process cheaply mass-produces high-quality graphene nanosheets, researchers in South Korea and Case Western Reserve University report. Graphene, which is made from graphite, the same stuff as "lead" in pencils, has been hailed as the most important synthetic material in a century. Sheets conduct electricity better than copper, heat better than any material known, are harder than...

2012-03-14 11:28:26

These days, graphene is the rock star of materials science, but it has an Achilles heel: It is exceptionally sensitive to its electrical environment. This single-atom-thick honeycomb of carbon atoms is lighter than aluminum, stronger than steel and conducts heat and electricity better than copper. As a result, scientists around the world are trying to turn it into better computer displays, solar panels, touch screens, integrated circuits and biomedical sensors, among other possible...

2012-01-18 13:19:43

Scientists from the University of Illinois at Urbana-Champaign and the company Dioxide Materials have demonstrated that randomly stacked graphene flakes can make an effective chemical sensor. The researchers created the one-atom-thick carbon lattice flakes by placing bulk graphite in a solution and bombarding it with ultrasonic waves that broke off thin sheets. The researchers then filtered the solution to produce a graphene film, composed of a haphazard arrangement of stacked flakes, that...

2011-11-30 14:48:52

New nanoscale electronic state discovered on graphene sheets Researchers from the London Centre for Nanotechnology (LCN) have discovered electronic stripes, called 'charge density waves', on the surface of the graphene sheets that make up a graphitic superconductor. This is the first time these stripes have been seen on graphene, and the finding is likely to have profound implications for the exploitation of this recently discovered material, which scientists believe will play a key role...

2010-07-01 16:40:20

Since its discovery, graphene"”an unusual and versatile substance composed of a single-layer crystal lattice of carbon atoms"”has caused much excitement in the scientific community. Now, Nongjian (NJ) Tao, a researcher at the Biodesign Institute at Arizona State University has hit on a new way of making graphene, maximizing the material's enormous potential, particularly for use in high-speed electronic devices. Along with collaborators from Germany's Max Planck Institute, the...

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2010-06-21 11:53:45

New, simple technique enables large-scale production of graphene at room temperature; researchers use graphene to build chemical sensors, ultracapacitors Researchers at Rensselaer Polytechnic Institute have developed a simple new method for producing large quantities of the promising nanomaterial graphene. The new technique works at room temperature, needs little processing, and paves the way for cost-effective mass production of graphene. An atom-thick sheet of carbon arranged in a...

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2010-04-09 12:03:13

To make large sheets of carbon available for light collection, Indiana University Bloomington chemists have devised an unusual solution -- attach what amounts to a 3-D bramble patch to each side of the carbon sheet. Using that method, the scientists say they were able to dissolve sheets containing as many as 168 carbon atoms, a first. The scientists' report, online today (April 9), will appear in a future issue of Nano Letters, an American Chemical Society journal. "Our interest stems from...

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2009-06-10 15:40:00

 Engineers from the University of Pennsylvania, Sandia National Laboratories and Rice University have demonstrated the formation of interconnected carbon nanostructures on graphene substrate in a simple assembly process that involves heating few-layer graphene sheets to sublimation using electric current that may eventually lead to a new paradigm for building integrated carbon-based devices.Curvy nanostructures such as carbon nanotubes and fullerenes have extraordinary properties but are...


Word of the Day
attercop
  • A spider.
  • Figuratively, a peevish, testy, ill-natured person.
'Attercop' comes from the Old English 'atorcoppe,' where 'atter' means 'poison, venom' and‎ 'cop' means 'spider.' 'Coppa' is a derivative of 'cop,' top, summit, round head, or 'copp,' cup, vessel, which refers to 'the supposed venomous properties of spiders,' says the OED. 'Copp' is still found in the word 'cobweb.'
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