Category Chemistry/Nanotechnology

They played a key role in demonstrating the unusual behavior of carbon: Tim Schleif (left) and Joel Mieres Perez (right). Credit: © RUB, Marquard

Chemists at Ruhr-Universität Bochum have found evidence that carbon atoms cannot only behave like particles but also like waves. This quantum-mechanical property is well-known for light particles such as electrons or hydrogen atoms. However, researchers have only rarely observed the wave-particle duality for heavy atoms, such as carbon. “Our result is one of few examples showing that carbon atoms can display quantum effects,” says Sander. Specifically, carbon atoms can tunnel. They thus overcome an energetic barrier, although they do not actually possess enough energy to do that.

Wolfram Sander explains the paradox: “It’s as though a tiger has ...

Bioinspired supramolecular fibers drawn from a multiphase self-assembled hydrogel. Proceedings of the National Academy of Sciences, 2017; 201705380 DOI: 10.1073/pnas.1705380114

A team of architects and chemists from the University of Cambridge has designed super-stretchy and strong fibres which are almost entirely composed of water, and could be used to make textiles, sensors and other materials. The fibres, which resemble miniature bungee cords as they can absorb large amounts of energy, are sustainable, non-toxic and can be made at room temperature...

Drexel University researchers have developed two new electrode designs, using MXene material, that will allow batteries to charge much faster. The key is a microporous design that allows ions to quickly make their way to redox active sites. Credit: Drexel University

Researchers use mxene to push charging rate limits in energy storage. Can you imagine fully charging your cell phone in just a few seconds? Researchers in Drexel University’s College of Engineering can, and they took a big step toward making it a reality with their recent work unveiling of a new battery electrode design...

1, Bismuthene film interrupted at a step in the silicon carbide substrate viewed through a scanning tunnelling microscope. The film areas inevitably end at the substrate step and a conducting edge channel (white) occurs.
2. Schematic illustration of the conducting edge channels at the boundaries of the bismuthene film. The edge channels protect the spins against scattering and thereby allow loss-free and efficient spin-based data transmission.

It’s ultra-thin, electrically conducting at the edge due to quantum effects and insulating within – and all that at room temperature: Physicists from the University of Würzburg have developed a promising new material. The material class of topological insulators is presently the focus of international solids research...