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484 Current news about the topic graphene

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Novel approach improves graphene-based supercapacitors

Meeting growing demand for increased storage capacity

06-Aug-2020

Demand for integrated energy storage devices is growing rapidly as people rely more and more on portable and wireless electronics, and the global need grows for clean energy sources such as solar and wind energies. This is creating an exponential need for advanced energy storage technologies - ...

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How can you perforate an atomic layer of material and leave the one underneath intact?

The Art of Making Tiny Holes: Scientists developed a technique for processing surfaces on an atomic scale

04-Aug-2020

Nobody can shoot a pistol bullet through a banana in such a way that the skin is perforated but the banana remains intact. However, on the level of individual atomic layers, such a feat has now been achieved - a nano-structuring method has been developed at TU Wien (Vienna), with which certain ...

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New material for longer-lasting fuel cells developed

New research suggests that graphene - made in a specific way - could be used to make more durable hydrogen fuel cells for cars

24-Jul-2020

In the study, published in the journal Nanoscale, scientists produced graphene via a special, scalable technique and used it to develop hydrogen fuel cell catalysts. The research team, involving scientists from Queen Mary University of London and University College London (UCL), showed that this ...

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Mysterious mechanism of graphene oxide formation explained

Comprehensive view on the driving forces of the complex processes occurring during the transformation of graphite into graphene oxide

21-Jul-2020

A paper by Kazan Federal University appeared in early access in Carbon. Project lead Ayrat Dimiev has been working on this topic since 2012, when he was a part of Professor James Tour's group at Rice University. First results saw light in 2014. That paper, which has amassed 490 citations at this ...

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Porous nitrogen-doped graphene ribbons for future electronics

Attractive for applications in electronics and quantum computing

13-Jul-2020

A team of physicists and chemists has produced the first porous graphene ribbons in which specific carbon atoms in the crystal lattice are replaced with nitrogen atoms. These ribbons have semiconducting properties that make them attractive for applications in electronics and quantum computing, as ...

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Breakthrough in the synthesis of graphene nanoribbons

Graphene Nanoribbons might soon be much easier to produce

29-Jun-2020

An international research team led by Martin Luther University Halle-Wittenberg (MLU), the University of Tennessee and Oak Ridge National Laboratory in the U.S. has succeeded in producing this versatile material for the first time directly on the surface of semiconductors. Until now, this was ...

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Next-generation, high-toughness battery component

By combining a ceramic material with graphene, Brown University engineers have made what they say is the toughest solid electrolyte built to date

24-Jun-2020

A team of Brown University researchers has found a way to double the toughness of a ceramic material used to make solid-state lithium ion batteries. The strategy, described in the journal Matter, could be useful in bringing solid-state batteries to the mass market. "There's huge interest in ...

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Joined nano-triangles pave the way to magnetic carbon materials

Quantum entanglement in graphene nanostructures

04-Jun-2020

Graphene triangles with an edge length of only a few atoms behave like peculiar quantum magnets. When two of these nano-triangles are joined, a "quantum entanglement" of their magnetic moments takes place: the structure becomes antiferromagnetic. This could be a breakthrough for future magnetic ...

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Pretty as a peacock: The gemstone for the next generation of smart sensors

Method represents a simple, inexpensive and scalable approach to produce multi-functional graphene infused synthetic opals

20-May-2020

Scientists have taken inspiration from the biomimicry of butterfly wings and peacock feathers to develop an innovative opal-like material that could be the cornerstone of next generation smart sensors. An international team of scientists, led by the Universities of Surrey and Sussex, has ...

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Unraveling the magnetism of a graphene triangular flake

13-May-2020

Graphene is a diamagnetic material, this is, unable of becoming magnetic. However, a triangular piece of graphene is predicted to be magnetic. This apparent contradiction is a consequence of "magic" shapes in the structure of graphene flakes, which force electrons to "spin" easier in one ...

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