Articles tagged with Metals
University of Illinois engineers develop physics-informed neural networks to predict outcomes of complex 3D printing processes. The model accurately recreates experiments and predicts temperature and melt pool length with high accuracy.
Researchers at Virginia Tech created soft electronics that can sustain damage without losing electrical conductivity. The materials are stretchy, recyclable, and reusable, making them ideal for emerging technologies like wearables and soft robotics.
The team successfully synthesized Christmas-tree-shaped palladium nanostructures that enhance catalytic activity for AA electro-oxidation. Multiple sharp edges observed in the nanostructures improve electrocatalytic performance.
Researchers at KTH Royal Institute of Technology have developed a new biocompatible polymer-based composite material that can replace metal plates in treating difficult and unstable fractures. The material, AdhFix, enables customized plating for fixation of fractures with a more comfortable recovery.
Researchers from the University of Jena have developed a hybrid membrane that prevents lithium dendrites and doubles the battery's lifetime. The membrane uses tiny pores to reduce ion transport, preventing dendrite nucleation.
International collaboration identifies four correlated metals in two-orbital systems, including a Hund's metal that can give rise to superconductivity. The discovery overturns conventional wisdom and opens up new avenues for understanding strongly correlated materials.
Researchers at the University of Freiburg have detected a previously unknown quantum effect in metal clusters, where electrons exhibit behavior similar to classical particles. The team's findings contradict previous predictions and suggest that decoherence suppresses interferences, leading to almost classical distributions.
Scientists developed a method to dynamically switch liquid metal surfaces between reflective and scattering states using electricity. This technology could be used to create electrically controllable mirrors or illumination devices, enabling new applications in art and advanced devices.
A study published in Environment International found high levels of lead in indigenous people living in Peruvian Amazonia, with the highest concentrations found near oil extraction areas. The research, led by Cristina O'Callaghan-Gordo, highlights the need for urgent action to address the potential health effects on these communities.
Researchers develop new methodology to study lead halide perovskites' photophysics, revealing the limitations of existing theories. The method provides a complete representation of the material's photophysical processes, allowing for the examination of theory validity and exploration of new explanations.
Researchers developed Ru1/NC SAC, showcasing improved catalytic activity and selectivity in reductive amination reactions. The single-atom dispersion and coordination environment play crucial roles in determining the catalytic performance.
Twice a day, a faint layer of metals sinks down through the atmosphere at 90 miles high above Boulder, Colorado. The discovery provides a window into the high-altitude region where interactions between the sun, earth, and magnetic field can create conditions for surface life to thrive.
Researchers at DGIST have developed a novel approach to creating stable, long-lasting lithium metal batteries using ultrathin lithium particles pre-planted with LiNO3. The resulting batteries showed excellent cycling performance, retaining 87% capacity over 450 cycles and outperforming comparable cells.
Researchers at TU Dresden developed a theoretical model that explains how electrons move through three-dimensional materials, even when their electric transport appears two-dimensional. The findings have implications for topological quantum phenomena and could lead to powerful quantum technologies.
Researchers at University of Michigan identify key questions in developing lithium metal solid-state batteries for increased EV range and improved safety. However, addressing these challenges, such as ceramic production and battery management system design, is crucial to their commercialization.
A recent study found that nanoplastics and arsenic exposure affects oyster biological functions, with increased bioaccumulation of arsenic in Canadian Crassostrea virginica oysters compared to Guadeloupean Isognomon alatus oysters. Gene deregulation was also observed in C. virginica.
Researchers at FAU have discovered a new class of magnesium complexes in which the metal has a zero-oxidation state, forming elemental Mg in complex compounds. This discovery represents a landmark in the chemistry of magnesium and opens up new avenues for research into its unusual reactivity.
Etching processes were found to accelerate surface reconstruction and increase the formation of metal hydroxides, enhancing oxygen evolution reaction efficiency. This breakthrough has potential applications in other oxygen-susceptible metal compounds.
Research from the University of Liverpool and Loughborough University has developed electrolyte formulations for lithium-oxygen batteries, significantly improving cycle stability. The technology could provide greater energy storage than conventional lithium-ion batteries.
Cleanup efforts can restore affected streams to near natural conditions within 10-15 years, with common responses seen despite differing aquatic life and toxic metals. Shared feeding habits and behavioral characteristics unified how stream invertebrates responded to alleviation of metal pollutants.
Researchers at KAUST developed a new family of catalysts that leverage aromaticity for improved performance in reactions such as hydrogen production and ester formation. The PN3(P) pincer complexes exhibit high catalytic activity, but more importantly, provide insights into the role of aromaticity in catalysis.
Researchers have developed a technology that enables robots to navigate and forage for energy sources in their environment, eliminating the need for batteries or computers. The system uses oxidation reactions with surrounding air to power the robot, allowing it to sense and respond to changes in chemical concentrations.
A team developed a novel approach to generate precisely controlled, helical palladium-DNA systems that mimic the organization of natural base pairs in double-stranded DNA molecules. The process is based on self-organized assembly of a special palladium complex and single-stranded DNA molecules.
A study found a significant increase in boys born with undescended testicles in France between 2002 and 2014. The researchers identified clusters of cases in areas with high levels of environmental pollution from industries such as coal mining and metal works.
Scientists from Japan's Institute for Molecular Science have created a new recipe for stable radical-based coordination polymers, which have potential applications in electronics and spintronics. The materials exhibit photoluminescence properties and can be produced using different metal ions or complexes.
Researchers at Jilin University developed a see-through glass display that transitions smoothly between a spectrum of colors when electrically charged. The technology harnesses interactions between metal ions and ligands, offering high white light contrast ratio and numerous applications.
Researchers at the University of Illinois have developed a new imaging technology that can identify good and bad emitters among populations of carbon nanodots. The study found that approximately 20% of carbon nanodots are perfect emitters, while about 80% have a very short light emission state before expelling heat.
Researchers propose a potential solution to dendrite growth in rechargeable lithium metal batteries, proposing the use of microfluidics to reduce dendrite growth by up to 99%. This study aims to extend the life of these high-energy density batteries while improving safety.
A team of researchers at KAUST has developed a highly porous metal organic framework (MOF) with a unique design that allows for the adjustment of its pore structure. The MOF, inspired by zeolites, features a sodalite topology with pores measuring up to 43 angstroms in diameter.
Researchers have discovered that individual molecules on a metal surface can interact with each other over large distances, potentially revolutionizing the field of computing. This phenomenon has significant implications for the development of new electronic and optoelectronic technologies based on organic molecules and 2D materials.
Researchers identified lithium hydride (LiH) as a dominant compound in anode breakdown during lithium metal batteries (LMBs), which can be reversed by increasing temperature. The discovery offers hope to enhance battery life without size increase or cost.
Scientists have identified lithium hydride and a new form of lithium fluoride in the interphase of lithium metal anodes using ultrabright x-rays. This finding is a major step towards developing smaller, lighter, and less expensive batteries for electric vehicles.
Researchers developed an illumination-reaction decoupled n-Si MIS photocathode that surmounts challenges impeding p-Si MIS photocathode development. The new design utilizes majority carriers to drive the surface reduction reaction, avoiding light-shielding problems and enabling higher efficiency.
Researchers at the University of Göttingen have created a novel approach for generating X-rays by utilizing a thin layer structure with varying electron densities. This 'sandwich structure' enables focused X-ray beams to be directed in a specific direction, overcoming the challenges of traditional X-ray tube methods.
Researchers from Chalmers University of Technology have developed concrete guidelines for charging and operating lithium metal batteries to minimize the risk of short circuits. By optimizing charge parameters, the team aims to create safer and more efficient batteries with higher energy density.
Researchers developed a GaN-based MEMS resonator that maintains stability even above 600K by regulating strain caused by heat. This device is highly sensitive, small, and can be integrated with CMOS technology, making it promising for various applications including 5G communication.
Physicists at Princeton University have observed quantum oscillation in an insulator, a phenomenon typically seen in metals. The discovery hints at the existence of neutral fermions and challenges the long-held distinction between metals and insulators.
Researchers at UC Berkeley develop a new catalytic process converting polyethylene plastic into high-value adhesives, enhancing its stickiness without compromising other traits. This breakthrough could change the economics of turning waste into valuable products.
Researchers discovered that tiny bubbles or pores form during the printing process due to fluctuations in the keyhole's depth. By controlling the machines' speed and power, companies can avoid this problem and improve printing processes.
Scientists create miniscule robots with plastic chassis and magnetic metal wheels, powered by rotating magnetic fields, opening up applications for delivering medications and treating aneurysms.
A new theory developed by scientists at SISSA has established a relationship between the presence of 'handles' in the space of atom and molecule arrangements and a material's electrical conductivity. The research found that materials equipped with handles, previously thought to be insulators, can conduct electricity like metals.
Researchers demonstrate a solvent-assisted ligand exchange-hydrogen reduction strategy for selective encapsulation of ultrafine metal nanoparticles within the shallow layers of MOF. This approach reduces mass transfer resistance and enhances metal dispersion, promoting highly efficient hydrogenation reactions.
Researchers discovered that 'bad metals' transform into quasiparticles, allowing them to pair up and superconduct current without resistance. This explains their unusual behavior in low-temperature superconductors.
Researchers at Columbia University discovered that adding potassium ions to conventional lithium battery electrolytes prevents lithium microstructure proliferation, ultimately limiting the growth of dendrites that can cause short-circuiting and fires. This breakthrough enables stable lithium metal batteries with improved performance.
Scientists have solved the Casimir puzzle by accounting for energy losses of conduction electrons in metals, leading to agreement between theory and high-precision measurements. The new approach takes into account both real and virtual fluctuations, enabling reliable calculation and creation of miniature nanodevices.
Researchers at the University of Rochester have developed a way to visualize molecules in 3D, showing their position, orientation, and wobble. This technology, called CHIDO, could shed light on biological processes involved in diseases like COVID-19.
Scientists at UNSW have created a method to produce high-quality two-dimensional MoS2 semiconductors without grain boundaries. By using gallium metal in its liquid state, researchers were able to form the desired MoS2 material on an atomically smooth surface, paving the way for ultra-low energy electronics with fast switching speeds.
Researchers at Johns Hopkins University have developed a new method to pinpoint cracks in metals long before they cause disasters. By testing metals at a microscopic scale, they can rapidly inflict repetitive loads and track damage progression into cracks.
Scientists create a method to manipulate metal surfaces using N-heterocyclic carbenes, which cooperate to rearrange the structure atom by atom, mimicking a zipper mechanism.
Researchers at Waseda University developed a novel technique that can produce 3D objects combining both metal and plastic. This breakthrough opens up new possibilities for 3D electronics, potentially leading to improved healthcare and nursing care devices.
Stanford University scientists have identified a class of solid materials that could replace flammable liquid electrolytes in lithium-ion batteries, improving safety and performance. The new materials, made of lithium, boron, and sulfur, show promise as stable and efficient alternatives.
Researchers propose multifunctional liquid metal nanocapsules with tunable polylactone shells for improved thermal/photo-molding properties, electric conductivity, and notch-insensitive tearing. The powder of LM capsules combines exceptional properties of liquid metals and polylactone shells.
Researchers discovered a method to enhance the photoluminescent quantum yield (PLQY) of 1D metal halide C4N2H14PbB4 by suppressing non-radiative loss under high pressure. The findings reveal that pressure-tuned STE binding energy and confined motion of organic cations contribute to the PL enhancement.
Researchers have discovered a simple method for creating a curved photonic beam using a microparticle, which can be used for various applications such as microscopy and lithography. This breakthrough enables the creation of more flexible and versatile photonics devices.
A Boston University School of Public Health study found that mobile e-shredding trucks expose workers to toxic metals and particles, posing health risks. The study calls for improved safety guidelines to protect vulnerable populations who are disproportionately affected by the growing industry.
Scientists at HKU and Stanford University develop a new data storage method that uses quantum geometry to store information. This technology reduces energy consumption by over 100 times compared to traditional methods, making it ideal for emerging in-memory computing and neural network computing.
Researchers from Peter the Great St.Petersburg Polytechnic University produced a metal with increased ductility, three times higher than specified in standard. This discovery can change component design and improve material performance for industries like Aerospace.
Researchers discuss direct conversion of N2 into organic compounds via N-C bond formation, with potential applications in sustainable systems. The review highlights the challenges and limitations of current methods, but also outlines promising future research directions.
Researchers at the Flatiron Institute and Cornell University developed a robust theoretical model of strange metals, revealing their existence as a new state of matter. The model shows that strange metals exhibit properties linked to temperature and fundamental constants, with surprising connections to black holes and high-temperature ...
A nationwide survey of dragonfly larvae has confirmed the use of these insects to measure mercury pollution in US national parks, providing a new tool for researchers. The study found that about two-thirds of aquatic sites studied within national parks are polluted with moderate-to-extreme levels of mercury.