Catalysts - 24 News by TU Wien

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Catalysts - 24 News by TU Wien

Tip: You can further refine your news selection by departments and 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 ...

catalysts carbon catalysis
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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 ...

catalysts catalysis 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 ...

catalysts photocatalysts hydrogen
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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 ...

catalysts catalysis chemical analyses
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From greenhouse gas to value-added product

CO₂ conversion with new material: MOCHAs make it possible

12-Apr-2023 - If one converts CO2 into synthesis gas, a valuable starting material for the chemical industry can be obtained. Researchers at TU Wien show how this works even at room temperature and atmospheric pressure. Thinking of CO2, terms like climate-damaging or waste product probably quickly come to ...

catalysts CO2 Greenhouse Gases
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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, ...

catalysts catalysis electron microscopy
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Recycling Greenhouse Gases

Novel perovskite catalysts could be used wherever methane and carbon dioxide are produced simultaneously

05-Sep-2022 - CO2 and methane can be turned into valuable products. But until now the catalysts required for such reactions quickly lose their effectiveness. TU Wien has now developed more stable alternatives. Wherever the production of harmful greenhouse gases cannot be prevented, they should be converted ...

catalysts carbon dioxide chemical reactions
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Climate protection: CO₂ turned into methanol

TU Wien has developed a chemical process that uses special catalysts to turn climate-damaging carbon dioxide into valuable methanol

29-Jun-2022 - For reasons of climate protection, carbon dioxide must not be released into the atmosphere. Wherever the formation of carbon dioxide cannot be prevented, it should be captured and converted into other substances. The best possible solution is creating substances that have value and can be sold. A ...

catalysts carbon dioxide Methanol
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The platinum riddle

How a chemical reaction takes place that, at first glance, should not be possible at the temperatures observed

05-Apr-2022 - What happens when a cat climbs onto a sunflower? The sunflower is unstable, will quickly bend, and the cat will fall to the ground. However, if the cat only needs a quick boost to catch a bird from there, then the sunflower can act as a "metastable intermediate step". This is essentially the ...

catalysts platinum catalysts carbon dioxide
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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 ...

catalysts photocatalysts catalyst materials
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