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434 Current news about the topic graphene

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Laser-induced graphene gets tough, with help

Combining conductive foam with other materials for capable new composites

15-Feb-2019

Laser-induced graphene (LIG), a flaky foam of the atom-thick carbon, has many interesting properties on its own but gains new powers as part of a composite. The labs of Rice University chemist James Tour and Christopher Arnusch, a professor at Ben-Gurion University of the Negev in Israel, ...

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How safe is graphene?

Effects on people and the environment under the microscope

11-Feb-2019

Graphene is considered one of the most interesting and versatile materials of our time. The application possibilities inspire both research and industry. But are products containing graphene also safe for humans and the environment? A comprehensive review, developed as part of the European ...

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Fluid-inspired material self-heals before your eyes

Coating for metals rapidly heals over scratches and scrapes to prevent corrosion

31-Jan-2019

It's hard to believe that a tiny crack could take down a gigantic metal structure. But sometimes bridges collapse, pipelines rupture and fuselages detach from airplanes due to hard-to-detect corrosion in tiny cracks, scratches and dents. A Northwestern University team has developed a new coating ...

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Breakthrough in graphene research: Researchers wild about zigzags

Large, stable pieces of graphene produced with unique edge pattern

30-Jan-2019

Graphene is a promising material for use in nanoelectronics. Its electronic properties depend greatly, however, on how the edges of the carbon layer are formed. Zigzag patterns are particularly interesting in this respect, but until now it has been virtually impossible to create edges with a ...

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For a longer battery life: Pushing lithium ion batteries to the next performance level

Chemists develop new anode material

17-Dec-2018

Conventional lithium ion batteries, such as those widely used in smartphones and notebooks, have reached performance limits. Materials chemist Freddy Kleitz from the Faculty of Chemistry of the University of Vienna and international scientists have developed a new nanostructured anode material ...

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Molecular adlayer produced by dissolving water-insoluble nanographene in water

06-Dec-2018

Even though nanographene is insoluble in water and organic solvents, Kumamoto University (KU) and Tokyo Institute of Technology (Tokyo Tech) researchers have found a way to dissolve it in water. Using "molecular containers" that encapsulate water-insoluble molecules, the researchers developed a ...

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Artificial magnetic field produces exotic behavior in graphene sheets

04-Dec-2018

A simple sheet of graphene has noteworthy properties due to a quantum phenomenon in its electron structure named Dirac cones in honor of British theoretical physicist Paul Dirac (1902-1984), who was awarded the Nobel Prize for Physics in 1933. The system becomes even more interesting if it ...

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Molecular assemblies heal epitaxial graphene on silicon carbide

29-Nov-2018

Scientists at Chalmers University of Technology, Sweden, have made a breakthrough in the way one can control the charge carrier density in graphene. They have discovered a novel method to dope graphene over large areas that enables the study of the physics at the Dirac point, where graphene is ...

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Simulations Suggest Graphene Can Stretch to Be a Tunable Ion Filter

28-Nov-2018

Researchers at the National Institute of Standards and Technology (NIST) have conducted simulations suggesting that graphene, in addition to its many other useful features, can be modified with special pores to act as a tunable filter or strainer for ions (charged atoms) in a liquid. The concept, ...

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Detecting light in a different dimension

Polymer nanostructures longer than wide make graphene a better light detector

14-Nov-2018

Scientists from the Center for Functional Nanomaterials (CFN) have dramatically improved the response of graphene to light through self-assembling wire-like nanostructures that conduct electricity. The improvement could pave the way for the development of graphene-based detectors that can quickly ...

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