New NMR methods for investigating paramagnetic complexes and supramolecular cages developed

21-Sep-2020

Chemistry and structural biology use the standard methods of NMR spectroscopy (NMR = nuclear magnetic resonance) to examine the structure of molecules including large molecules like proteins in solution. The NMR active nuclei, such as hydrogen atoms, are excited using radiofrequency pulses in ...

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Physicist demonstrates the dynamics of electron-light interaction originating from first principle

02-Sep-2020

With the highest possible spatial resolution of less than a millionth of a millimetre, electron microscopes make it possible to study the properties of materials at the atomic level and thus demonstrate the realm of quantum mechanics. Quantum-physical fundamentals can be studied particularly well ...

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Extraction and dissolution of Platinum atoms revealed by X-ray diffraction

26-Aug-2020

Degradation of platinum, used as a key electrode material in the hydrogen economy, severely shortens the lifetime of electrochemical energy conversion devices, such as fuel cells. For the first time, scientists elucidated the movements of the platinum atoms that lead to catalyst surface ...

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Pursuing the Trojan horse: Scientists are developing methods for measuring metal in microplastics

27-Jul-2020

There are a relatively large number of studies on the accumulation and transport of persistent organic pollutants by microplastics, which has resulted in good data in this regard. Data, however, on the accumulation of metals that are toxic to the environment are very rare and sometimes ...

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Kiel physics team observed extremely fast electronic changes in real time in a special material class

10-Jul-2020

In physics, they are currently the subject of intensive research; in electronics, they could enable completely new functions. So-called topological materials are characterised by special electronic properties, which are also very robust against external perturbations. This material group also ...

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How cyanobacteria can be transformed into hydrogen factories

06-May-2020

The transition from fossil fuels to a renewable energy supply is one of the most important global challenges of the 21st century. In order to achieve the internationally-agreed target of limiting global warming to a maximum of 1.5 degrees, the international community must drastically reduce ...

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Researchers control the size of molecular superstructures on surfaces

23-Mar-2020

Most technical functional units are built bit by bit according to a well-designed construction plan. The components are sequentially put in place by humans or machines. Life, however, is based on a different principle. It starts bottom-up with molecular self-assembly. The crystallization of sugar ...

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Extremely porous material made of "white graphene" for new laser light applications

20-Mar-2020

With a porosity of 99.99 %, it consists practically only of air, making it one of the lightest materials in the world: Aerobornitride is the name of the material developed by an international research team led by Kiel University. The scientists assume that they have thereby created a central ...

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Research team from Kiel and Nijmegen studies magnetic spiral structure

11-Mar-2020

Today, there is a great effort to scale down magnetic memory towards nanometer-sized bits in order to ultimately store information in a single magnetic atom. This makes it necessary to image magnetic properties on the atomic scale. At the heart of magnetism is the exchange interaction – proposed ...

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Behaviour of electrons in graphene nanoribbons elucidated

05-Dec-2019

New materials are needed to further reduce the size of electronic components and thus make devices such as laptops and smartphones faster and more efficient. Tiny nanostructures of the novel material graphene are promising in this respect. Graphene consists of a single layer of carbon atoms and, ...

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