Сборщик RSS-лент

MOF co-catalyst allows selectivity of branched aldehydes of up to 90%

Nanowerk.com - 5 hours 46 min назад
Approach represents a powerful tool for designing selective catalytic heterogeneous processes.
Категории: Nano planet

3D-printing metal-organic framework solids for high-pressure gas storage and separation

Nanowerk.com - 8 hours 7 min назад
Metal-organic frameworks (MOFs) rank among the best materials for catalysis, gas storage and gas storage and processing. So far, more than 20 000 different MOFs have been fabricated and characterized. A crucial issue for designing MOF-based solids is about finding the best comprise between the material's porosity and its mechanical resistance in relation to a specific application. To do that, researchers have developed a modified 3D printer for the controlled deposition of inks, formulated from different MOF powders. This robocasting provides perfect control on the size and morphology of the final solid.
Категории: Nano planet

When bonding noble metals to 2D materials, interfaces matter

Nanowerk.com - 25 февраля, 2020 - 21:39
Researchers have developed new materials for improved single-atom catalysis and future electronics.
Категории: Nano planet

Safe method of adding metal particles to organic nanomaterials paves way for better batteries

Nanowerk.com - 25 февраля, 2020 - 19:46
Novel liquid-based method for safe synthesis of carbon-based materials containing ultrafine metallic atoms.
Категории: Nano planet

Production of high yield Si-C for anodes in Li batteries

Nanowerk.com - 25 февраля, 2020 - 19:46
Novel composite combining the high energy storage capacity of silicon and the elastic property of carbon.
Категории: Nano planet

Breaking the temperature barrier in small-scale materials testing

Nanowerk.com - 25 февраля, 2020 - 18:22
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 and inexpensively than with traditional testing.
Категории: Nano planet

Synthesizing a superatom

Nanowerk.com - 25 февраля, 2020 - 11:09
Scientists have demonstrated how superatoms of a desired valency, stability, and volume can be synthesized in a solution medium by altering the number of atoms in a cluster structure. This is an important step in realizing the practical application of superatom clusters as substitutes for elements in chemical reactions.
Категории: Nano planet

Shining a new light on biomimetic materials

Nanowerk.com - 24 февраля, 2020 - 22:52
Researchers have merged optical, chemical and materials sciences to utilize light to control the local dynamic behavior within a hydrogel, much like the ability of the iris and pupil in the eye to dynamically respond to incoming light.
Категории: Nano planet

Defects add color to quantum systems

Nanowerk.com - 24 февраля, 2020 - 22:25
Researchers are investigating light-emitting defects in materials that may someday form the basis of quantum-based technologies, such as quantum computers, quantum networks or engines that run on light. Once understood, these defects can become controllable features.
Категории: Nano planet

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

Nanowerk.com - 24 февраля, 2020 - 19:46
Patented 'beam chopper' provides cost-effective way to investigate super-fast processes important for tomorrow's technology.
Категории: Nano planet

Going super small to get super strong metals

Nanowerk.com - 24 февраля, 2020 - 19:40
A new study has resulted in a new understanding of how individual atoms of metal grains interact with each other, as well as a way to use those physics to achieve super-strong metals.
Категории: Nano planet

Developing lensless imaging at the nanoscale

Nanowerk.com - 24 февраля, 2020 - 19:31
Researchers are planning to develop imaging that can look at biological systems at a much higher resolution and definition.
Категории: Nano planet

New way to control the phase of light using 2D materials

ScienceDaily.com: Nanotechnology News - 24 февраля, 2020 - 19:13
Physicists have announced that they have discovered a new way to control the phase of light using 2D materials -- atomically thin materials 1/100,000 the size of a human hair -- without changing its amplitude, at extremely low electrical power dissipation.
Категории: Nano planet

Magnetic nano-vortex: Swirling boundaries

ScienceDaily.com: Nanotechnology News - 24 февраля, 2020 - 19:13
For the first time, researchers have recorded a '3D film' of magnetic processes on the nanometer scale. This reveals a variety of dynamics inside the material, including the motion of swirling boundaries between different magnetic domains. The insights could help to make magnetic data storage devices more compact and efficient.
Категории: Nano planet

Going super small to get super strong metals

ScienceDaily.com: Nanotechnology News - 24 февраля, 2020 - 19:13
Metals get stronger as the size of the grains making up the metal get smaller -- up to a point. If the grains are smaller than 10 nanometers in diameter the materials are weaker because, it was thought, they slide past each other like sand sliding down a dune. But in samples of nickel with grain diameters as small as 3 nanometers, and under high pressures, the strength of the samples continued to increase with smaller grain sizes.
Категории: Nano planet

Mirrored chip could enable handheld dark-field microscopes

ScienceDaily.com: Nanotechnology News - 24 февраля, 2020 - 19:13
Engineers have developed a small, mirrored chip that helps to produce dark-field images, without dedicated expensive components. The chip is slightly larger than a postage stamp and as thin as a credit card. When placed on a microscope's stage, the chip emits a hollow cone of light that can be used to generate detailed dark-field images of algae, bacteria, and similarly translucent tiny objects.
Категории: Nano planet

Directing nanoparticles straight to tumors

ScienceDaily.com: Nanotechnology News - 24 февраля, 2020 - 19:13
Modern anticancer therapies aim to attack tumor cells while sparing healthy tissue. A team of researchers has now produced tiny nanoparticles that are designed to specifically target cancer cells. They can navigate directly to the tumor cells and visualize those using advanced imaging techniques. Both in Petri dishes and animal models, the scientists were able to effectively guide the nanoparticles to the cancer cells. The next step is to combine the new technique with therapeutic approaches.
Категории: Nano planet

An exceptionally stable single-atom catalyst

Nanowerk.com - 24 февраля, 2020 - 18:42
Scientists have shown that single platinum atoms trapped in C12A7 crystals act as a stable and effective catalyst for the hydrogenation of nitroarenes, an essential process in the production of many kinds of fine chemicals.
Категории: Nano planet

Directing nanoparticles straight to tumors

Nanowerk.com - 24 февраля, 2020 - 18:33
A team of researchers has produced tiny nanoparticles that are designed to specifically target cancer cells. They can navigate directly to the tumor cells and visualize those using advanced imaging techniques.
Категории: Nano planet

Short film of a magnetic nano-vortex

Nanowerk.com - 24 февраля, 2020 - 18:25
For the first time, researchers have recorded a '3D film' of magnetic processes on the nanometer scale. This reveals a variety of dynamics inside the material, including the motion of swirling boundaries between different magnetic domains.
Категории: Nano planet