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Materials Science Mar 26, 2020

Upgrading biomass with selective surface-modified catalysts

Scientists have designed a catalyst composed of very low concentrations of platinum (single atoms and clusters smaller than billionths of a meter) on the surface of titanium dioxide. They demonstrated how this catalyst significantly ...

Materials Science Mar 23, 2020

Chasing lithium ions on the move in a fast-charging battery

A team of scientists led by the U.S. Department of Energy's (DOE) Brookhaven National Laboratory and Lawrence Berkeley National Laboratory has captured in real time how lithium ions move in lithium titanate (LTO), a fast-charging ...

Nanophysics Mar 19, 2020

Seeing how grain boundaries transform in a metal

Grain boundaries are one of the most prominent defects in engineering materials separating different crystallites, which determine their strength, corrosion resistance and failure. Typically, these interfaces are regarded ...

General Âé¶¹ÒùÔºics Mar 10, 2020

Electrical power generation from moderate-temperature radiative thermal sources

Moderate-temperature thermal sources often radiate waste heat as a by-product of mechanical work, chemical or nuclear reactions, or information processing. In a new report in Science, Paul S. Davids and a research team at ...

General Âé¶¹ÒùÔºics Mar 6, 2020

'Tickling' an atom to investigate the behavior of materials

Scientists and engineers working at the frontier of nanotechnology face huge challenges. When the position of a single atom in a material may change the fundamental properties of that material, scientists need something in ...

Nanomaterials Mar 3, 2020

Atomic-scale imaging reveals secret to thin film strength

An international team of scientists and engineers, led by University of Minnesota Associate Professor K. Andre Mkhoyan and Professor Emeritus Michael Tsapatsis (currently, a Bloomberg Distinguished Professor at Johns Hopkins ...

Space Exploration Feb 28, 2020

An iron-clad asteroid

Itokawa would normally be a fairly average near-Earth asteroid—a rocky mass measuring only a few hundred metres in diameter, which orbits the sun amid countless other celestial bodies and repeatedly crosses the orbit of ...

Materials Science Feb 25, 2020

Synthesizing a superatom: Opening doors to their use as substitutes for elemental atoms

'Superatom' is a name given to a cluster of atoms that seem to exhibit properties similar to elemental atoms. Scientists have shown particular interest in superatomic structures, since they can be linked with atoms to produce ...

Nanomaterials Feb 25, 2020

Breaking the temperature barrier in small-scale materials testing

Researchers have demonstrated a new method for testing microscopic aeronautical materials at ultra-high temperatures. By combining electron microscopy and laser heating, scientists can evaluate these materials much more quickly ...

Optics & Photonics Feb 24, 2020

A simple retrofit transforms electron microscopes into high-speed atom-scale cameras

Researchers at the National Institute of Standards and Technology (NIST) and their collaborators have developed a way to retrofit the transmission electron microscope—a long-standing scientific workhorse for making crisp ...

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