Chemical reactions - 14 News from the science department from Austria

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Chemical reactions - 14 News from the science department from Austria

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

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Novel UV Broadband Spectrometer Revolutionises Air Pollutant Analysis

The laser-based technology developed at TU Graz enables the continual real-time analysis of air pollutants and their interaction with other gases and sunlight

11-Apr-2024 - Sunlight has a major influence on chemical processes. Its high-energy UV radiation in particular is strongly absorbed by all materials and triggers photochemical reactions of the substances present in the air. A well-known example is the formation of ground-level ozone when UV light hits nitrogen ...

chemical reactions Photochemical Reaction air pollutants
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Feeding plants with electricity

Electrochemists develop sustainable alternative to conventional fertilizer

05-Mar-2024 - While all living beings need nitrogen in order to survive, it is not so easy to absorb it. Plants, for example, can absorb it as salts of ammonia, which makes these salts a key component of fertilizers. Up to now, ammonia has mainly been produced on the basis of fossil resources and non-renewable ...

chemical reactions ammonia electrochemical cells
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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 ...

chemical reactions catalysis catalysts
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Nega­tively charged and yet pretty cold

This enables, for example, new investigations of chemical reactions in space

06-Jul-2023 - Anions, negatively charged ions, are reluctant to be cooled. Physicists led by Matthias Weidemüller from Heidelberg University and Roland Wester from the University of Innsbruck have now developed a method for cooling molecular anions to below 3 Kelvin in a remarkably short time. This enables, ...

chemical reactions anions cooling
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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 ...

chemical reactions catalysis catalysts
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Quantum Chemistry: Molecules caught tunneling

Breakthrough after 15 years of research

03-Mar-2023 - Quantum effects can play an important role in chemical reactions. Physicists led by Roland Wester of the University of Innsbruck, Austria, have now for the first time observed a quantum mechanical tunneling reaction in experiments. The observation can also be described exactly in theory. With the ...

chemical reactions deuterium hydrogen
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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 ...

chemical reactions carbon dioxide catalysts
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Miniaturized Lab-on-a-Chip for real-time Chemical Analysis of Liquids

A fingertip-sized chip replaces bulky laboratory equipment: The possible applications are extremely diverse

01-Sep-2022 - An infrared sensor has been developed at TU Wien (Vienna) that analyses the content of liquids within the fraction of a second. In analytical chemistry, it is often necessary to accurately monitor the concentration change of certain substances in liquids on a time scale of seconds. Especially in ...

chemical reactions analytical chemistry chemical analysis
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A chemical reactor has been invented that can store energy without loss for months

The energy can then be used for heating in winter

11-May-2022 - Storing energy over the long term is arguably the biggest unsolved problem of the energy transition. A new type of chemical heat storage system has now been invented at TU Wien (Vienna) that can store large amounts of energy in an environmentally friendly way for a virtually unlimited period of ...

chemical reactions Boric acid boric oxide
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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 ...

chemical reactions catalyst materials catalysts
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