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graphene, waste -

Graphene typically costs $200,000 per ton. Now, scientists can make it from trash.

Graphene typically costs $200,000 per ton. Now, scientists can make it from trash.

Graphene is a lattice of carbon atoms arranged in a chicken-wire formation, a structure that makes it very useful for a wide range of applications. However, it's been very difficult and expensive to make. This new technique cuts down on the cost and difficulty by flash heating any carbon-based material, such as used coffee grounds or plastic waste.   Recent technology developed at Rice University is taking the idea that one man's trash is another man's treasure to its extreme. Banana peels, coffee grounds, single-use plastic containers, coal — all of these and more are being turned into one of...

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graphene, superconductivity -

'Magic-angle' trilayer graphene may be a rare, magnet-proof superconductor

'Magic-angle' trilayer graphene may be a rare, magnet-proof superconductor

MIT physicists have observed signs of a rare type of superconductivity in a material called magic-angle twisted trilayer graphene. In a study appearing in Nature, the researchers report that the material exhibits superconductivity at surprisingly high magnetic fields of up to 10 Tesla, which is three times higher than what the material is predicted to endure if it were a conventional superconductor. The results strongly imply that magic-angle trilayer graphene, which was initially discovered by the same group, is a very rare type of superconductor, known as a "spin-triplet," that is impervious to high magnetic fields. Such exotic superconductors could vastly...

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