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133 Current news about the topic graphite

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Old Mystery Solved: a "New Kind of Electrons"

Why do certain materials emit electrons with a very specific energy?

20-Nov-2020

It is something quite common in physics: electrons leave a certain material, they fly away and then they are measured. Some materials emit electrons, when they are irradiated with light. These electrons are then called "photoelectrons". In materials research, so-called "Auger electrons" also play ...

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Engineered electrode material moves battery research closer to 'holy grail'

An electric vehicle with such a battery could travel 600 miles on a single charge

12-Oct-2020

Electric vehicles are gaining in popularity, but their long charging time is a significant detraction for potential customers. While a typical SUV with a combustion engine could travel 300 miles with a five-minute refuel, a state-of-the-art electric vehicle takes about one hour to store enough ...

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Graphite instead of gold: Thin layers for better hydrogen cars

Innovative coating for bipolar plates in fuel cells

02-Oct-2020

Electric cars which can be filled up within five minutes, reach ranges like a diesel and yet drive "cleanly": This is already being achieved by hydrogen fuel cell vehicles today. However, so far they are still rare and expensive. Apart from efficiency problems, this is due, among other things, to ...

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Serendipity broadens the scope for making graphite

New technique does not require the typical metal catalysts or special raw materials to turn carbon into crystalline graphite

28-Jul-2020

Curtin University researchers have unexpectedly discovered a new way to make crystalline graphite, an essential material used in the making of lithium ion batteries. Described in a research paper published in Nature's Communications Materials, the new technique does not require the typical metal ...

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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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Sublimation, not melting: Graphene surprises researchers again

07-Jan-2020

Physicists from the Moscow Institute of Physics and Technology and the Institute for High Pressure Physics of the Russian Academy of Sciences have used computer modeling to refine the melting curve of graphite that has been studied for over 100 years, with inconsistent findings. They also found ...

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Graphene is 3D as well as 2D

26-Sep-2019

Graphene is actually a 3D material as well as a 2D material, according to a new study from Queen Mary University of London. Realising that it is a 3D material is important for understanding its mechanical properties and for developing novel graphene-based devices. Often hailed as a 'wonder ...

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Will your future computer be made using bacteria?

Scientists are making graphene easier and more environmentally friendly to produce

12-Jul-2019

In order to create new and more efficient computers, medical devices, and other advanced technologies, researchers are turning to nanomaterials: materials manipulated on the scale of atoms or molecules that exhibit unique properties. Graphene--a flake of carbon as thin as a single later of ...

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One of the world's fastest cameras films motion of electrons

Research team examines ultrafast conversion of light energy in a solid

24-Dec-2018

During the conversion of light into electricity, such as in solar cells, a large part of the input light energy is lost. This is due to the behaviour of electrons inside of materials. If light hits a material, it stimulates electrons energetically for a fraction of a second, before they pass the ...

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Graphene assembled film shows higher thermal conductivity than graphite film

26-Jun-2018

Researchers at Chalmers University of Technology, Sweden, have developed a graphene assembled film that has over 60 percent higher thermal conductivity than graphite film – despite the fact that graphite simply consists of many layers of graphene. The graphene film shows great potential as a ...

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