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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 ...

Analytical Chemistry Mar 27, 2020

Multi-stage deformation process in high-entropy alloys at ultra-low temperatures revealed

An international research team led by scientists from City University of Hong Kong (CityU) has recently discovered that high-entropy alloys (HEAs) exhibit exceptional mechanical properties at ultra-low temperatures due to ...

General Physics Mar 06, 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 ...

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 ...

General Physics 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 ...

Nanomaterials Mar 03, 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 ...

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 ...

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 ...

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 ...

Nanophysics Jan 31, 2020

First view of hydrogen at the metal-to-metal hydride interface

University of Groningen physicists have visualized hydrogen at the titanium/titanium hydride interface using a transmission electron microscope. Using a new technique, they succeeded in visualizing both the metal and the ...

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