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New substance classes for nanomaterials

Nano spheres and diamond slivers made of silicon and germanium

09-Sep-2021

Chemists at Goethe University Frankfurt have developed two new classes of materials in the field of nanomaterials and investigated them together with their cooperation partners at the University of Bonn: for the first time, they have succeeded in producing a nano sphere of silicon atoms and a ...

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Thawing permafrost releases greenhouse gas from depth

05-Aug-2021

In a study led by the University of Bonn, geologists compared the spatial and temporal distribution of methane concentrations in the air of northern Siberia with geological maps. The result: the methane concentrations in the air after last year's heat wave indicate that increased gas emissions ...

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Bioplastics in the sustainability dilemma

Scientists investigate the factors affecting the global land use impacts and CO2 emissions of plant-based plastics

09-Feb-2021

Plastics made from crops such as maize or sugarcane instead of fossil fuels are generally considered sustainable. One reason is that plants bind CO2, which compensates for the carbon released into the atmosphere when plastics are disposed. However, there is a catch: With increasing demand for raw ...

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Innovations through hair-thin optical fibres

Study shows what miniaturised optical filters make possible

22-Jan-2021

Scientists at the University of Bonn have built hair-thin optical fibre filters in a very simple way. They are not only extremely compact and stable, but also colour-tunable. This means they can be used in quantum technology and as sensors for temperature or for detecting atmospheric gases. The ...

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Researchers develop sustainable catalysis process

Method enables sustainable oxidations related to enzyme reactions

20-Jan-2021

Acetals are important chemical compounds that are used, for example, in the production of certain medical agents. A new method now makes their synthesis easier and more environmentally friendly. Chemists at the University of Bonn have developed and optimized the sustainable catalytic process. ...

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Chemists synthesize "flat" silicon compounds

Molecular exotics are unusually stable

05-Jan-2021

Chemists at the University of Bonn have synthesized extremely unusual compounds. Their central building block is a silicon atom. Different from usual, however, is the arrangement of the four bonding partners of the atom, which are not in the form of a tetrahedron around it, but flat like a ...

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Titanium catalyst enables reactions with the help of green light

Cost-effective and non-toxic alternative to the ruthenium and iridium catalysts used so far

23-Apr-2020

For the first time, chemists at the University of Bonn and Lehigh University in Bethlehem (USA) have developed a titanium catalyst that makes light usable for selective chemical reactions. It provides a cost-effective and non-toxic alternative to the ruthenium and iridium catalysts used so far, ...

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Unexpected discovery: Blue-green algae produce oil

06-Mar-2020

Cyanobacteria - colloquially also called blue-green algae - can produce oil from water and carbon dioxide with the help of light. This is shown by a recent study by the University of Bonn. The result is unexpected: Until now, it was believed that this ability was reserved for plants. It is ...

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In-depth insights into glass corrosion

Researchers observe the reaction of silicate glass with aqueous solutions in real time

04-Mar-2019

Silicate glass has many applications, including the use as a nuclear waste form to immobilize radioactive elements from spent fuel. However, it has one disadvantage - it corrodes when it comes into contact with aqueous solutions. Scientists at the University of Bonn were able to observe in detail ...

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Tiny nanomachine successfully completes test drive

11-Apr-2018

Together with colleagues from the USA, scientists from the University of Bonn and the research institute Caesar in Bonn have used nanostructures to construct a tiny machine that constitutes a rotatory motor and can move in a specific direction. The researchers used circular structures from ...

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