Articles tagged with Metals
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.
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.
Researchers at Florida State University have created a hollow nanostructure for metal halide perovskites, which shows potential for more efficient photon-related technologies. The new structure exhibits pronounced quantum size effects and is the first to display negative curvature.
The team developed a flexible composite LLZO sheet electrolyte that can be produced at room temperature, reducing energy consumption and enabling widespread adoption of lithium metal batteries. The electrolyte functions over a wide range of temperatures, making it suitable for electric vehicles.
Researchers at Tokyo University of Science devise a new method to synthesize complex acyl fluorides from widely available acyl fluorides through a reversible reaction involving palladium. The technique uses an 'acyl-exchange reaction' to produce adequate amounts of complex acyl fluorides with high efficiency.
The UC San Diego team created a nano-composite separator that slows down the flow of energy and heat inside lithium metal batteries when they short circuit. This allows the battery to self-discharge gradually, preventing catastrophic failure and potential fires.
Researchers at UNIST developed an ion concentrate electrolyte using a solvent containing fluorine atoms, which protects both the negative and positive electrodes in lithium metal batteries. This new composition increases battery output and lifespan, addressing stability issues with lithium metal batteries.
Graphite has been found to be intrinsically lithiophilic at 500K, contradicting previous conclusions that it was lithiophobic. The study uses ab initio molecular dynamics simulation and shows that surface chemistry plays a key role in the wetting performance of Li metal on graphite.
The study achieved time-resolved measurement of a single magnetic memory event using a tunnel junction, revealing two stages: incubation and actual reversal. The researchers developed a strategy to minimize time fluctuations, reducing the total time for the reversal event to less than 0.3 nanoseconds.
Researchers at UC San Diego developed an ultrasound-emitting device that improves charge time and run time in lithium metal batteries by preventing dendrite growth. The device enables fast-charging and high-energy batteries, offering twice the capacity of current lithium ion batteries.
Researchers found graphene can withstand more than a billion cycles of high stress without breaking. The material's unique structure is attributed to its regular and simple lattice, making it highly resistant to fatigue.
Michigan Tech engineers focus on lithium's unique mechanics at small scales to address battery defects. They find that at tiny lengths, lithium is much stronger than at macroscopic scales, relying on diffusion instead of dislocation motion to relieve stress.
A new high-throughput method has revealed metals previously undetected in 3-D protein structures, correcting up to half of the errors in global repository of protein structures called PDB.
Researchers at UCSB have developed an electrochemical method for extracting uranium from solution, using carboranes as a key component. This technology enables efficient and reliable capture and release of uranium ions, with potential applications in nuclear waste reprocessing and seawater uranium extraction.
A new device uses magnetic fingerprinting to identify hidden metal objects, offering a smaller and cheaper alternative to traditional security systems. It can detect a wide range of metallic objects, from cellphones to hammers, with improved accuracy and low power consumption.
A recent study published in the Journal of New Music Research reveals that people's dance styles are almost always the same, regardless of music genre. The researchers used motion capture technology to analyze participants' movements and found that computers could identify individuals with an astonishing 94% accuracy.
Researchers at RMIT University have developed a new technology to destroy bacteria and bacterial biofilm without harming good cells, offering a potential solution to the deadly problem of antibiotic resistance. The technology uses precision-engineered liquid metals to physically rip bacteria to shreds and smash through the biofilm wher...
Computer simulations have yielded a more accurate picture of strange metals and their connection to high-temperature superconductivity. The study reveals that changing temperature or electron flow can flip the material between a superconductive state and a strange metal state, shedding light on this phenomenon.
A new review finds growing evidence that vaping can harm the heart and blood vessels, with particulate matter, metals, and flavorings contributing to cardiovascular problems. The study highlights a need for larger-scale research on e-cigarette use and regulation to ensure transparency about ingredients.
Researchers at Tomsk Polytechnic University have successfully created plastic collimators using 3D printing technology, which can replace metal counterparts in radiation therapy. The team used a numerical model and layer-by-layer deposition to manufacture the first products, finding optimal thickness for the plastic product.
Researchers at the University of Sussex have developed an adhesive that can unstick when exposed to a magnetic field, allowing for easy disassembly and recycling of products. The adhesive works with various materials, including plastic, wood, glass, and metal, and is comparable in strength to industry-standard adhesives.
A KAIST team has designed a new strategy for electronics that can mechanically transform into a wearable electronic device. The platform allows users to seamlessly tune its stiffness and shape, offering robust and convenient interfaces for various applications.
Australian researchers have fabricated a self-assembled, carbon-based nanofilm where the charge state can be controlled at the level of individual molecules. The system has exciting implications for fields like computer memory, light-emitting devices and quantum computing.
A team led by Chongmin Wang at the Pacific Northwest National Laboratory found that certain compounds in the electrolyte prompt the growth of dendrites and whiskers. By manipulating the battery's ingredients, they hope to prevent their growth and eliminate a major obstacle to widespread use of lithium metal batteries.
Researchers developed a universal computer model for metal nanoparticle adsorption, accounting for structural characteristics, metal composition, and adsorbates. The model enables predicting adsorption trends on novel nanoparticles, accelerating nanomaterials design.
Researchers at Bar-Ilan University have developed a new concept that combines light and sound waves in standard silicon chips, achieving delays of tens of nano-seconds without introducing additional materials. This breakthrough enables the selective processing of sound waves, which is difficult for electronics and optics alone.
The new technology distributes decision-making throughout a stretchable material by sensing, computing, and responding without centralized processing. This approach holds promise for use in soft robotics and prosthetic devices, mimicking the decentralized brain of octopuses.
Researchers have developed a general method to prepare ultrathin MOF NRBs with high surface area, highly active surface and excellent catalytic efficiency. The proposed method is simple, efficient and versatile, which could be used for the preparation of a series of ultrathin MOF NRBs.
Researchers at Stanford University have developed a coating that overcomes some of the battery's defects, extending its life and making it safer. The coating prevents dendrites from forming, which can cause the battery to combust or create a short circuit.
A comprehensive review paper provides a thorough understanding of the scientific and technological knowledge behind nanocomposite fabrication using selective laser melting. The study highlights the potential of this additive manufacturing technology for creating customized parts with unique structures and properties.
A study led by UC San Diego researchers identifies the root cause of lithium metal battery failure as bits of lithium metal deposits that break off from the anode during discharging. These deposits get trapped in the solid electrolyte interphase (SEI) layer, lowering Coulombic efficiency and causing batteries to fail. The findings coul...
Scientists have developed a new imaging method called tomoscopy using synchrotron radiation to observe the foaming of liquid metals in great detail. This technique allows for the analysis of dynamic processes with high temporal resolution, providing insights into material distribution and pore formation.
Researchers have developed a 'Trojan horse' technique to produce intense electron beams, potentially shrinking future accelerators by 100-1,000 times. This could lead to brighter X-ray lasers and enhanced scientific capabilities.
Researchers have developed amorphous/crystalline heterophase PdCu nanosheets with high chemoselectivity and catalytic activity. The phase transformation behavior of these nanosheets affects their properties, leading to improved catalysis in hydrogenation reactions.
A nationwide program to unify research on liquid metal components for future tokamaks will be coordinated by Princeton Plasma Physics Laboratory's Rajesh Maingi. The three-year project aims to develop a strategy for coating the divertor with flowing liquid lithium to protect it from extreme heat.
Researchers have developed a wax-based composite coating that protects lithium metal anodes from air and water, achieving high capacity retention rates. The coating prevents dendrite growth and maintains electrochemical performance under humid conditions.