Weyl fermions

An article published in the July 2015 edition of Science, show the discovery of Weyl fermions by an international team lead by Princeton University scientists. Weyl fermions are massless particles, predicted back in 1929 by Hermann Weyl. These fermions can be crucial for the continuous development of electronic circuits, performing a lot faster than the electronics today. What is even more interesting, is that while graphene is a 2D material, Weyl fermions should exists in a 3D environment, which opens for more practical applications “in real life”.

Science article can be found at sciencemag.org (subscription required).

More and more practical applications of graphene, now; additive to concrete

According to an article on TU.no (Norwegian), adding graphene to concrete could increase its hardness up to 50%. The article is referencing results from an ongoing study (Swedish) by Chalmers University of Technology in Gothenburg.

Regular concrete

Den här bilden visar hur vanlig betong ser ut i förstoring. Foto: Johan Liu
Den här bilden visar hur vanlig betong ser ut i förstoring. Foto: Johan Liu

Graphene strengthen concrete

Så här ser den grafenförstärkta betongen ut i förstoring. Foto: Johan Liu
Så här ser den grafenförstärkta betongen ut i förstoring. Foto: Johan Liu

(Pictures from nyteknik.se / Johan Liu)

The study is part of a larger research campaign, targeting building a connected highway along the Norwegian coast from Kristiansand to Trondheim, utilizing extraordinary long bridges and undersea tunnels. Ferjefri E39 (TU.no)

Could graphene be used to extract lithium from seawater?

More and more electric vehicles hitting the road could strain the world’s lithium supply, and today only natural processes are used commercially to extract lithium from high-concentration salt water an article from MIT Technology Review states – Quest to Mine Seawater for Lithium Advances.

The solution could be graphen a company called G2O Water thinks, using graphene oxide to create their membrane and thus reduce the fouling of the membrane over time.