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Materials news, March 2020

Organic semiconductors improved by polymer combination

Using a novel etching solution, researchers have developed a new method for making MXenes that does away with the need for water.

Using an electrochemical cell inside a transmission electron microscope, scientists have captured in real time how lithium ions move in lithium titanate.

A novel separator with conductive carbon nanotubes can prevent lithium-metal batteries from heating up and catching fire in case of a short circuit.

Researchers have shown that modifying any surface with millimeter tall peaks and valleys can reduce frost formation on that surface by 60%.

A novel analytical model can identify how twisted graphene sheets behave and determine their stability at different sizes and temperatures.

Researchers have found that small grooves in filter paper can cause single-walled carbon nanotubes to line up side-by-side in 2D films.

Researchers have designed a system that can produce large quantities of the 2D material known as MXene while preserving its unique properties.

Producing single crystalline GaN nanowire growth based on an amorphous substrate

Wearable all-solid-state supercapacitors with excellent performance

Five degrees of freedom in polycrystalline materials

Ni-rich cathodes used in EV Li-ion batteries show improved performance stability when doped with boron

Magnetic nanoparticles could gather up oily contaminants in wastewater and prevent their release into the environment

flakes of material decorated with tiny particles could prove useful for catalyzing hydrogen generation reactions

easy way to make large, freestanding, thin sheets of metallic materials could open up novel applications in catalysis, flexible electronics, soft robotics

A fabric made using salts could be used to gather drinking water from the atmosphere

Nanosensors powered by a stream of bubbles can seek out explosives and related hazards in only a few minutes

3D supercapacitors knitted from cotton or nylon yarn coated with a novel conductive material could power smart textiles

Transparent, self-healing, ice-resistant polymers

Making nanomaterials work in 3D cancer theranostics

Hydrogel can ultrasonically charge bioelectronic implants

By combining two different polymers, researchers have managed to produce an ink that does not require any doping to conduct electricity.

A novel nickel-iron catalyst and polymer electrode binder can produce hydrogen from water as well as a precious metal catalyst.

For the first time, physicists have found found evidence for entanglement between the electrons in a ferromagnet.

Scientists have developed a graphene device that can display three distinct properties: superconducting, insulating and magnetic.

Using copper as a substrate, scientists have successfully grown atom-thick sheets of hexagonal boron nitride as two-inch diameter crystals.

Scientists have developed a novel material made from graphene oxide and a protein that can self-assemble into tissue-like vascular structures.

Researchers have found that adhesives can be made tougher by adding sacrificial bonds that are easily broken.

Researchers have shown that the adhesion of a catechol-containing glue that works underwater can be turned off with an electrical current.

Using an X-ray free-electron laser, scientists have shown that melting of a gold film starts at grain boundaries and then moves inside the grain.

Prof. Barbara Rothen-Rutishauser is using an Agents of Change grant to empower women in academia

Researchers used surface spectroscopy methods to track polymer self-assembly at the oil-water interface in real time.

Researchers have synthesized a crystalline material with two properties previously unseen in a single material: ferroelectricity and chirality.

new nanoparticle catalyst could drive artificial photosynthesis to provide clean energy while removing anthropogenic CO2 from the atmosphere

Researchers have developed a novel electron microscopy method for testing microscopic aeronautical materials at ultra-high temperatures.

Researchers have used circularly polarized mid-infrared light to control and enhance the chirality of electron distribution in a 2D material.

By changing density in response to illumination with a beam of light, a novel hydrogel can trap light inside specific sections of itself.

When placed on top of passive silicon waveguides, 2D materials can change the phase of light as strongly as existing silicon phase modulators.

Scientists believe there may be a way to make a single material that can conduct both electricity and energy with 100% efficiency.

Scientists have developed a 3D imaging technique for observing complex behaviours in magnets, including fast-moving waves and 'tornadoes'.

Magnetically controlled neural implant

Researchers have shown that ultraflat gold films can be used to extract large, high quality 2D sheets from van der Waals crystals.

Gold tape exfoliates vdW structures to make 2D sheets

Researchers have engineered two-layered nanofibers consisting of an ordered row of alternating peptides and determined how they self-assemble.

Researchers have used small molecules that fluoresce after the impact of mechanical force to detect damage in fiber-reinforced polymers.

Lead-absorbing polymer films can prevent toxic lead leaking from perovskite solar cells while have no effect on their performance.

green membranes based on natural materials surpass state-of-the-art membranes for desalination, cleaning up wastewater, and purifying organic solvents

thin nanostructured films of gold and nickel boost performance of direct methanol fuel cells

Woody approach to recycling concrete

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