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- Battery research: visualisation of aging processes operando
Lithium button cells with electrodes made of nickel-manganese-cobalt oxides (NMC) are very powerful. Unfortunately, their capacity decreases over time. Now, for the first time, a team has used a no... - Efficient separation of deuterium at elevated temperatures
A novel porous material capable of separating deuterium from hydrogen at a temperature of 120 K has been introduced. Notably, this temperature exceeds the liquefaction point of natural gas, thus fa...
- Ultrafast dissociation of molecules studied
For the first time, an international team has tracked at BESSY II how heavy molecules - in this case bromochloromethane - disintegrate into smaller fragments when they absorb X-ray light. Using ... - Battery research with the X-ray microscope
New cathode materials are being developed to further increase the capacity of lithium batteries. Multilayer lithium-rich transition metal oxides (LRTMOs) offer particularly high energy density. How... - Observing electrochemical reactions with photoelectron spectroscopy
Solid-state batteries have several advantages: they can store more energy and are safer than batteries with liquid electrolytes. However, they do not last as long and their capacity decreases with ... - Fuel Cells: Oxidation processes of phosphoric acid revealed by tender X-rays
The interactions between phosphoric acid and the platinum catalyst in high-temperature PEM fuel cells are more complex than previously assumed. Experiments at BESSY II with tender X-rays have decod...
- Green hydrogen: Improving the stability of iridium catalysts with titanium oxides
Anodes for the electrolytic splitting of water are usually iridium-based materials. In order to increase the stability of the iridium catalyst, a team at HZB and a group at HI-ERN have now produced... - Electrocatalysis under the atomic force microscope
A further development in atomic force microscopy now makes it possible to simultaneously image the height profile of nanometre-fine structures, as well as the electric current and the frictional fo... - Electrocatalysis - Iron and Cobalt Oxyhydroxides examined
A team led by Dr. Prashanth W. Menezes (HZB/TU-Berlin) has now gained insights into the chemistry of one of the most active anode catalysts for green hydrogen production. They examined a series of ...
- How photoelectrodes change in contact with water
Photoelectrodes based on BiVO4 are considered top candidates for solar hydrogen production. But what exactly happens when they come into contact with water molecules? A study in the Journal of t... - Batteries without critical raw materials
The market for rechargeable batteries is growing rapidly, but the necessary raw materials are limited. Sodium-ion batteries, for example, could offer an alternative. A joint research group from HZB... - A new tool for chirality investigations
Information on complex magnetic structures is crucial to understand and develop spintronic materials. Now, a new instrument named ALICE II is available at BESSY II. It allows magnetic X-ray scat... - Atomic displacements in High-Entropy Alloys examined
High-entropy alloys of 3d metals have intriguing properties that are interesting for applications in the energy sector. An international team at BESSY II has now investigated the local order on an ... - Unveiling the secrets of biofilms
Most bacteria have the ability to form communities, biofilms, that adhere to a wide variety of surfaces and are difficult to remove. This can lead to major problems, for example in hospitals or in ...
- New world record in materials research - X-ray microscopy with 1000 tomograms per second
Tomoscopy is an imaging method in which three-dimensional images of the inside of materials are calculated in rapid succession. Now a team led by HZB physicist Francisco Garca Moreno has achieved a... - How destructive formations develop in batteries
Tiny formations inside lithium batteries can severely limit the operating life of an energy storage device. A research team at the Helmholtz-Zentrum Berlin (HZB) has now investigated the process be... - Water as a metal
Every child knows that water conducts electricity - but this refers to "normal" everyday water that contains salts. Pure, distilled water, on the other hand, is an almost perfect insulator. It cons... - Synchrotrons accelerate corona research
Synchrotron light sources were originally built to study particles. Today, they are even used in the fight against COVID-19. The projects are as diverse as the fields of the synchrotron users, who ...
- Corrosion-resistant electrodes for electrolytic splitting of water
As part of an international collaboration, a team at the HZB has examined the corrosion processes of high-quality BiVO4 photoelectrodes using different state-of-the-art characterisation methods. ... - Nanopatterns of proteins detected by cryo-electron microscopy
A team from Helmholtz-Zentrum Berlin (HZB) used cryo electron microscopy to detect regular, two-dimensional structures in the form of Pascal triangles in a shock frozen protein material. The sampl... - New class of materials for tomorrow's energy storage
Researchers at the Technische Universität Berlin (TUB) have created a new family of semiconductors, the properties of which were investigated by the Helmholtz-Zentrum Berlin (HZB). The researchers ... - Following the charging and discharging of silicon electrodes live
Using silicon as a material for electrodes in lithium-ion batteries promises a significant increase in battery amp-hour capacity.The shortcoming of this material is that it is easily damaged by the... - Catalysts: Efficient hydrogen production via structure
Regeneratively produced hydrogen is considered the ecological raw material of the future. In order to produce it efficiently by electrolysis of water, researchers today also investigate perovskite ... - On the road to non-toxic and stable perovskite solar cells
The promising halide perovskite materials for solar energy conversion show high efficiencies, but this comes at a cost: The best perovskite materials incorporate toxic lead which poses a hazard to ... - Nanoparticles can change cells
Nanoparticles easily enter into cells. New insights about how they are distributed and what they do there are shown for the first time by high-resolution 3D microscopy images from BESSY II. For exa...