Catalysis - 15 News from the science department by TU Wien

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Catalysis - 15 News from the science department by TU Wien

Tip: You can further refine your news selection by industries.

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Two hundred times better catalysts thanks to carbon

“For a long time, the use of carbon as a carrier material for catalysis had something almost magical”

12-Nov-2024 - When you place metal nanoparticles on carbon, they become much more active. What was previously only assumed based on experience could now be explained in detail for the first time at TU Wien (Vienna). Precious metals play an important role in the chemical industry as catalysts: With the help of ...

catalysis carbon catalysts
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The self-cleaning wall paint

Catalysis research makes it possible: new wall paint can clean itself through exposure to sunlight and chemically break down pollutants from the air.

26-Mar-2024 - Beautiful white wall paint usually does not stay beautiful and white forever. Various substances from the air often accumulate on the surface. This can be a desirable effect because it makes the air cleaner for a short time - but over time the paint discolors and needs to be renewed. A research ...

catalysis photocatalysis nanoparticles
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Two conductors of a chemical reaction

Watching the reaction live

22-Nov-2023 - For the first time, researchers at TU Wien have successfully observed the operating principle of so-called promoters in a catalytic reaction in real-time. These promoters play an important role in technology, but so far there is only limited understanding of how they work. Catalysts are essential ...

catalysis catalysts catalytic reactions
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New catalysts for solar hydrogen production

Researchers at TU Wien are developing a layered photocatalyst that can be used to produce hydrogen very efficiently from water

20-Jul-2023 - Finding sustainable and clean fuels is crucial in today’s global energy and climate crisis. One promising candidate that is increasingly gaining relevance is hydrogen. However, today’s industrial hydrogen production still has a considerable CO2 footprint, especially considering processes like ...

catalysis photocatalysis photocatalysts
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More complex than expected: Catalysis under the microscope

Chemical analysis on the microscopic scale has shown that the catalyst composition can vary locally even more than expected

08-Jun-2023 - At TU Wien (Vienna), scientists use microscopy techniques to observe chemical reactions on catalysts more precisely than before yielding a wealth of detail. This made clear why some effects cannot be predicted. Catalysts composed from tiny metal particles play an important role in many areas of ...

catalysis catalysts chemical analyses
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Three Eyes See More than Two - monitoring a catalytic reaction with three different microscopies under exactly the same conditions in real time

Information is obtained that none of the methods alone could reveal

30-Sep-2022 - One has to look very closely to exactly understand what processes take place on the surfaces of catalysts. Solid catalysts are often finely structured materials made of tiny crystals. There are various microscopies to monitor chemical processes on such surfaces – they use, for example, ...

catalysis catalysts electron microscopy
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Light Instead of Electricity: A New Kind of “Green Hydrogen”

Simple and promising

01-Jun-2022 - Today, green hydrogen is usually created by splitting up water using electrical current derived from renewable energy sources. Scientists at TU Wien have now developed a new photocatalyst design that could make this process more direct and controllable. Hydrogen could be an important part of our ...

catalysis photocatalysis green hydrogen
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Photocatalysis: the Nano-Sponge Revolution

Creating a sponge-like hole structure on the nanometre scale that allows small molecules to pass through, record-breaking chemical reactivity was achieved

16-Feb-2022 - Catalysts are often solid materials whose surface comes into contact with gases or liquids, thereby enabling certain chemical reactions. However, this means that any atoms of the catalyst that are not on the surface serve no real purpose. Therefore, it is important to produce extremely porous ...

catalysis photocatalysts catalyst materials
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Catalysts: Poisoned and very much alive at the same time

A surprising discovery: A catalyst seems to contradict usual laws and can exhibit completely different activity states at the same time

17-Nov-2021 - Sometimes chemical reactions in the lab work the way you imagine them to, and sometimes they don't. Neither is unusual. What is highly unusual, however, is what a research team at TU Wien has now observed when studying hydrogen oxidation on a rhodium catalyst: The surface of a rhodium foil can be ...

catalysis chemical reactions hydrogen
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Anchoring single atoms

How can single atoms be used for catalysis? Researchers develop a new method to anchor single atoms to supports

01-Sep-2021 - There is a dictum to “never change a running system”. New methods can however be far superior to older ones. While to date chemical reactions are mainly accelerated by catalytic materials that comprise several hundreds of atoms, the use of single atoms could provide a new approach for ...

catalysis atoms catalysts
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