Articles tagged with Metals
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.
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.
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 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.
Researchers developed a new soft electrolyte that suppresses lithium dendrites, allowing for longer cycle life and improved safety. The technology enables the production of high-energy density batteries for electric aircraft and long-range electric cars.
Researchers developed a COF-LZU1 coating to redistribute Li-ions, improving battery performance. The coating's nanochannels hinder anion migration, increasing the Li-ion transference number and transforming mossy or dendritic Li into smooth deposition.
A new analysis of 71 studies with over 950,000 participants found significantly higher odds of knee osteoarthritis in physically demanding job titles such as farmers and builders.
Chinese researchers successfully integrated non-noble metal ions into semiconductor quantum dots, creating ultra-small nanocrystals with integrated light absorber, protecting layer and active site. The loading of metal ions enables the efficient evolution of hydrogen from water through photocatalysis.
Thermophones enable creation of fully controlled arrays from thin metal films attached to wires, paving the way for new sound technologies including home cinema systems. Researchers demonstrate improved sound control and richer sound fields compared to traditional arrays.
Researchers create a new way to store data by sliding atomically thin layers of metal over one another, packing more data in less space while using less energy. This approach has the potential to be faster than current technologies, with some estimates suggesting it could be accomplished over 100 times faster.
Researchers analyzed cores from the Basque Mud Patch to determine sedimentation rates and detect environmental contamination. The study found that metals and contaminants accumulate at an approximate rate of one millimeter per year, highlighting human activity's impact on the coastal area.
Researchers at the Max Planck Institute discovered strong oscillations in conductivity that signal quantum interference over vast distances. The findings require macroscopic quantum coherence and are only possible with ultra-pure materials like delafossites.
Researchers from Swiss Federal Laboratories for Materials Science and Technology (EMPA) have developed a method to detect keyhole instability in laser deep penetration welding. The technique uses an acoustic sensor and optical measurements analyzed with artificial intelligence, allowing for real-time monitoring of weld quality.
Bayram Saparov, a University of Oklahoma assistant professor, has been awarded a five-year Department of Energy Early Career Research Award to develop more efficient solar panels and LEDs. The award aims to bolster the nation's scientific workforce and support exceptional researchers in their early career years.
Aalto University researchers have developed a nature-imitating coating that makes batteries more durable and efficient. The coating, produced using carbon dioxide in molecular layer deposition, can protect the actual electrode material and enable the use of new, more efficient materials like lithium.
Researchers at Stanford University have developed a new lithium-based electrolyte that can improve the performance of lithium metal batteries. The novel electrolyte design boosts energy density and coulombic efficiency, leading to longer battery life and reduced weight.
Researchers estimate 30+ active intelligent civilizations in our galaxy using new data and simplifying assumptions about life forms. The Astrobiological Copernican Limit suggests that intelligent life may exist for billions of years, giving clues to our own civilization's long-term existence.
Researchers at UNSW Sydney synthesized ultra-thin carbon-based materials using liquid metals and organic fuels at room temperature, a first for this method. The ultra-smooth surface of the liquid metals templates atomically-thin carbon-based sheets, which can be used in various applications including battery storage and solar cells.
Scientists find electricity generated by interactions between water molecules and metals can be harnessed to create a new source of energy. The study reveals that high humidity levels above 60% can produce voltages up to one volt, offering potential for developing batteries charged from water vapor in the air.
Researchers at the University of Colorado Boulder have developed a new method for smart window technology that uses reversible metal electrodeposition to control tinting. The process is cheaper, more effective, and more durable than current options on the market.
Astronomers have identified a new class of cosmic explosions, dubbed fast blue optical transients (FBOTs), which produce the fastest and heaviest outflows ever recorded. The newly discovered object, CSS161010, has surpassed the famous AT2018COW in speed and mass ejected during its event.
Scientists have discovered the mysterious material tantalum disulfide, which exhibits unintuitive behavior, switching from conductor to insulator. The study reveals that 'Mottness' is a key player in explaining this phenomenon, challenging traditional theories.
Scientists in Australia and Germany have developed a hybrid structure combining traditional chip design with photonic architecture to overcome engineering barriers. This allows for efficient manipulation of light at the nanoscale, achieving data processing at 100 times smaller than the wavelength of light carrying the information.
Researchers have developed a novel freeze-thaw method to create noble metal aerogels with high surface areas and self-healing properties. These aerogels exhibit impressive light-driven photoelectrocatalytic performance, outperforming commercial palladium-on-carbon catalysts.
Researchers discovered that controlling laser power can mitigate spatter issues in L-PBF printing, reducing the formation of defects and deformations. This breakthrough could lead to more reliable and high-quality prints, revolutionizing manufacturing in advanced fields.