Researchers use nanomaterials to make 2D diamond clusters at room temperature

BROOKLYN, New York, Monday, January 26, 2021 – Atomically thin, 2D hexagonal boron nitride (h-BN) is a promising material whose protean ability to undergo phase transformations to strong, super lightweight, chemically stable, oxidation-resistant films makes them ideal for protective coatings, nanotechnology thermal applications, deep-UV light emitters, and much more. The possibilities embodied in different polytypes […]

New technique builds super-hard metals from nanoparticles

IMAGE: This gold “coin ” was made from nanoparticle building blocks, thanks to a new technique developed by Brown University researchers. Making bulk metals this way allows for precise of the metal’s… view more  Credit: Chen Lab / Brown University PROVIDENCE, R.I. [Brown University] — Metallurgists have all kinds of ways to make a chunk of […]

An anode-free zinc battery that could someday store renewable energy

Renewable energy sources, such as wind and solar power, could help decrease the world’s reliance on fossil fuels. But first, power companies need a safe, cost-effective way to store the energy for later use. Massive lithium-ion batteries can do the job, but they suffer from safety issues and limited lithium availability. Now, researchers reporting in […]

Inversely designing new materials for natural gas separation

A new machine learning strategy searches for desirable materials properties rather than building blocks, which researchers hope will lead to better materials to help spark a green economy. Artificial intelligence enabled MOF inverse design. Graphic courtesy of Dr. Zhenpeng Yao, University of Toronto Natural gas and biogas are a potential source of methane (CH4) and […]

Eliminating microplastics in wastewater directly at the source

IMAGE: Electro-analytical system used to identify appropriate electrodes for anodic oxidation processes. view more  Credit: INRS A research team from the Institut national de la recherche scientifique (INRS) has developed a process for the electrolytic treatment of wastewater that degrades microplastics at the source. The results of this research have been published in the Environmental Pollution […]

What stops flows in glassy materials?

Spatial correlations between slow-dynamics (red ellipses) and low-structural-entropy (light blue) regions in translational and rotational motion of colloidal ellipsoids with different aspect ratios. Scale bar: 20 μm. Credit: WANG Yuren Glasses have a liquid-like disordered structure but solid-like mechanical properties. This leads to one of the central mysteries of glasses: Why don’t they flow like […]

Scientists synthetize new material for high-performance supercapacitors

Scientists of Tomsk Polytechnic University jointly with colleagues from the University of Lille (Lille, France) synthetized a new material based on reduced graphene oxide (rGO) for supercapacitors, energy storage devices. The rGO modification method with the use of organic molecules, derivatives of hypervalent iodine, allowed obtaining a material that stores 1.7 times more electrical energy. […]

Conductive nature in crystal structures revealed at magnification of 10 million times

IMAGE: University of Minnesota Professor K. Andre Mkhoyan and his team used analytical scanning transmission electron microscopy (STEM), which combines imaging with spectroscopy, to observe metallic properties in the perovskite crystal… view more  Credit: Mkhoyan Group, University of Minnesota In groundbreaking materials research, a team led by University of Minnesota Professor K. Andre Mkhoyan has made […]

Towards applications: ultra-low-loss on-chip zero-index materials

a, Zero-index PhC slab without BICs. A photonic dipole mode forming the zero index results in out-of-plane radiation, dramatically increasing the propagation loss of the material. b, Zero-index PhC slab with a BIC. At a particular height, all the upward/downward out-of-plane radiation destructively interferes. Credit: Tian Dong, Jiujiu Liang, Philip Camayd-Muñoz, Yueyang Liu, Haoning Tang, […]

Catalysts: worth taking a closer look

Metal surfaces play a role as catalysts for many important applications – from fuel cells to the purification of car exhaust gases. However, their behaviour is decisively affected by oxygen atoms incorporated into the surface. This phenomenon has been known for a long time, but until now it has been impossible to precisely investigate the […]