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604 Current news about the topic nanoparticles

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Activity of fuel cell catalysts doubled

Modelling leads to the optimum size for platinum fuel cell catalysts

04-Jul-2019

An interdisciplinary research team at the Technical University of Munich (TUM) has built platinum nanoparticles for catalysis in fuel cells: The new size-optimized catalysts are twice as good as the best process commercially available today. Fuel cells may well replace batteries as the power ...

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High reaction rates even without precious metals

21-Jun-2019

Precious metals are often efficient catalysts. But they are expensive and rare. However, it has so far been difficult to determine how efficient non-precious metal alternatives are. Non-precious metal nanoparticles could one day replace expensive catalysts for hydrogen production. However, it is ...

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How to separate nanoparticles by “shape”

New strategy to separate molecules

13-Jun-2019

In our daily lives, the purpose and function of an item is defined by either its material, e.g. a rain jacket is fabricated of water-proof material, or its shape, e.g. a wheel is round to enable a rolling motion. What is the impact of the two factors on the nanoscale? The impact of material, ...

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Sustainable solutions take center stage as Nouryon announces 2019 Imagine Chemistry winners

28-May-2019

Surfactants derived from plants, eco-friendly membranes, and miniature sensors were among the eight winning ideas in the 2019 Imagine Chemistry collaborative innovation challenge, organized by Nouryon (formerly AkzoNobel Specialty Chemicals). More than 160 submissions from 30 countries were ...

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Self-organizing molecules: Cups with attoliter volume

22-May-2019

They look like interlocking egg cups, but a hen's egg is 100,000 times as thick as one of the miniature cups: Scientists at the Center for Nanointegration (CENIDE) at the University of Duisburg-Essen (UDE) have made polymers to form themselves into tiny cups on their own. They could, for example, ...

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Efficient removal of problem substances

Many wastewater treatment plants do not completely remove chemical substances from wastewater.

21-May-2019

Microcontaminants place a considerable burden on our water courses, but removing them from wastewater requires considerable technical resources. Now, ETH researchers have developed an approach that allows the efficient removal of these problematic substances. In our everyday lives, we all use a ...

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Applying precious metal catalysts economically

17-May-2019

Precious metal nanoparticles of platinum and gold are excellent catalysts. But they are expensive and rare. This new method makes it possible to save material. Researchers at Ruhr-Universität Bochum and the Fritz Haber Institute Berlin have developed a new method of using rare and expensive ...

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Cooling with light

07-May-2019

ETH researchers have cooled a nanoparticle to a record low temperature, thanks to a sophisticated experimental set-up that uses scattered laser light for cooling. Until now, no one has ever cooled a nanoparticle to such low temperatures in a photon cage: Dominik Windey and René Reimann – a ...

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Monitoring the lifecycle of tiny catalyst nanoparticles

06-May-2019

Since they are so tiny, it is difficult to investigate single nanoparticles. However, this is exactly what researchers are aiming for in order to tailor their properties. A novel approach: particle at the stick. Nanoparticles can be used in many ways as catalysts. To be able to tailor them in ...

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Quantum Optical Cooling of Nanoparticles

Physicists develop new method

09-Apr-2019

When a particle is completely isolated from its environment, the laws of quantum physics start to play a crucial role. One important requirement to see quantum effects is to remove all thermal energy from the particle motion, i.e. to cool it as close as possible to absolute zero temperature. ...

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