Lithium is considered the best available battery anode material because it carries the highest theoretical capacity and lowest electrochemical potential of all known candidate elements. But the material has several drawbacks. Repeated charge and discharge cycles can cause microscopic structural changes that lead to internal short circuits, or merely to reduced battery life.
3D printing has helped create things like complex art and yachts, but some of the most life-changing applications have been made in biotech, where the relatively cheap process makes implants and bionic limbs accessible to those who may not otherwise have them.
A group of scientists have turned graphene into a superconductor, capable of carrying electricity with no resistance. The secret involved sandwiching two layers of graphene together and offsetting them by a ‘magic angle.’ This discovery could help scientists trying to develop superconductors that work at room temperatures.
Stavitski and colleagues reveal a proof-of-concept CO2-CO converter that uses atoms embedded in a graphene sheet and achieves an efficiency of up to 97%.graphene sheet and achieves an efficiency of up to 97%.
Graphene. You know may know it as that wonder material that promises to change the way we build roads, craft smartphone screens, kill bacteria or even keep our feet cool. Composed of a one-atom thick sheet of carbon, graphene is thin and highly flexibility, strength and chemical stability. It also conducts electricity 100 times more effectively than copper and moves electrons 140 times faster than silicon (good for fast-charging).
In observing the laser-induced current, researchers found the electrons follow the logic of a quantum system, taking not one but two paths between their initial and excited states. The electrons form a two-state system, traveling simultaneously along two paths to the same end.