Pixel-by-pixel analysis yields insights into lithium-ion batteries
In a first, researchers have observed how lithium ions flow through a battery interface, which could help optimize the material’s design
20-Sep-2023 - By mining data from X-ray images, researchers at MIT, Stanford University, SLAC National Accelerator, and the Toyota Research Institute have made significant new discoveries about the reactivity of lithium iron phosphate, a material used in batteries for electric cars and in other rechargeable ...
Watching a Bimetallic Catalytic Surface in Action
Such insight on working catalysts is only possible to obtain using state-of-the-art experimental techniques under reaction conditions
01-Sep-2023 - A team of researchers from the Department of Interface Science at the Fritz Haber Institute of the Max Planck Society addressed the question: what happens to a Ga-promoted Cu surface under reaction conditions required for the synthesis of methanol? They found complex structural transformations of ...
Researchers produce polymers from ballbot-type carbenes for the first time
Researchers have produced long-chain mobile polymers on metallic surfaces, doing so by means of ballbot-type molecules which glide over the surface
31-Aug-2023 - N-heterocyclic carbenes (NHCs) are small, reactive ring molecules which bond well with metallic surfaces and which, over the past few years, have attracted a great deal of interest in the field of the stable chemical modification of metallic surfaces. One property – discovered at the University ...
Graphene discovery could help generate hydrogen cheaply and sustainably
Microscopic insights into electrochemical interfaces
29-Aug-2023 - Researchers from The University of Warwick and the University of Manchester have finally solved the long-standing puzzle of why graphene is so much more permeable to protons than expected by theory. A decade ago, scientists at The University of Manchester demonstrated that graphene is permeable ...
Microscopic Transformations of Electrocatalyst Surfaces
Researchers reveal the disordering of copper surfaces during catalysis
24-Aug-2023 - Developing technologies that can convert CO2 into synthetic fuels and base chemicals is of key importance for reaching the climate goals. The electrochemical reduction of CO2 at copper electrodes allows to do this directly with electric power from renewable sources which could be used for the ...
Shining potential of missing atoms
Single-atom vacancies in atomically thin insulators created in ultra-high vacuum
15-Jun-2023 - Single photons have applications in quantum computation, information networks, and sensors, and these can be emitted by defects in the atomically thin insulator hexagonal boron nitride (hBN). Missing nitrogen atoms have been suggested to be the atomic structure responsible for this activity, but ...
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 ...
How an African bird might inspire a better water bottle
An extreme closeup of feathers from a bird with an uncanny ability to hold water while it flies could inspire the next generation of absorbent materials
18-Apr-2023 - With high resolution microscopes and 3D technology, researchers at Johns Hopkins University and Massachusetts Institute of Technology captured an unprecedented view of feathers from the desert-dwelling sandgrouse, showcasing the singular architecture of their feathers and revealing for the first ...
In search of the 'holy grail': researchers observe lithium ions in real time
Tracking lithiation with transmission electron microscopy: A decisive step in research on battery materials
22-Mar-2023 - Li ion imaging by transmission electron microscopy (TEM) is the “holy grail” in the study of Li ion battery (LIB) materials. Tracking lithiation process in TEM could provide more profound understanding on the electrode degradation mechanism during battery cycling, which accelerates material ...
Electrocatalysis under the atomic force microscope
More insights with AFM
17-Mar-2023 - 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 force at solid-liquid interfaces. A team from the Helmholtz-Zentrum Berlin (HZB) and the Fritz Haber ...
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