Articles tagged with Metals
Rice University researchers have created a new method to detect and mitigate lithium dendrite growth, which can cause battery failure. A layer of red phosphorus acts as a signal to shut down charging when dendrites approach the separator.
Researchers at CityU developed an efficient fabrication method to create smooth perovskite films with enhanced performance and stability. This led to the production of highly efficient and stable green LEDs with a record operational lifetime.
Researchers have discovered a 'sweet spot' where adding certain additives enhances perovskite solar cell performance, but beyond that point, further additions degrade it. The findings provide clues for improving the material's efficiency and longevity, which currently lags behind conventional silicon cells.
A Northwestern University team has developed a novel material that can self-heal within seconds when scratched or cracked, preventing localized corrosion. The coating, inspired by fluids, flows and reconnects to rapidly heal, even after repeated damage.
Researchers developed a strategy to design single-atom catalysts for CO2 transformation, exhibiting superior activity and stability. The Ir-based catalyst shows the best performance yet for heterogeneous conversion of CO2 to formate.
A NYU Tandon-led research team invented thermal lithography process for fabricating metal electrodes on 2D semiconductors, improving transistor quality and reducing power consumption. The new fabrication method offers advantages over standard electron beam lithography methods.
Researchers have developed a novel Li anode design featuring a solid electrolyte layer and housed framework to mitigate dendrite growth and volume expansion. The resulting batteries exhibit excellent capacity retention and stability, paving the way for next-generation rechargeable battery development. This innovative approach has signi...
An international team of scientists developed a hybrid micro mixer that increases mixing efficiency by up to 90%, making it suitable for various biological studies. The device combines different geometry elements, offering high process efficiency and replacing existing passive micro mixers.
Researchers at the University of Pittsburgh are partnering with General Carbide to optimize tungsten carbide for additive manufacturing. The goal is to improve durability and reduce breakage in 3D printed parts. The project aims to develop better base powders and printing methods to enhance the use of tungsten carbide in metal printing.
A new study published in the journal Heart found that Latinos exposed to pesticides at work are twice as likely to have cardiovascular disease. The study, based on survey responses from 7,404 employed Latinos, also found increased risk of atrial fibrillation among those with occupational exposure to metals or pesticides.
Research reveals a strong association between workplace exposure to metals and pesticides and an increased risk of coronary heart disease and atrial fibrillation. The study suggests that cumulative exposure may be more harmful, particularly for Hispanic/Latino workers who may face language barriers and limited resources.
Researchers developed a new EPR method using a nanomembrane to analyze metalloproteins with minimal liquid sample. The technique detects changes in magnetic properties and enables sensitive measurements across a wide frequency range, shedding light on the mechanisms behind these vital proteins' functions.
Researchers developed a three-dimensional polymer sponge that promotes ion transfer while inhibiting dendritic growth in lithium metal batteries, potentially increasing cycle life and safety. The technology could enable more powerful and stable metal battery technologies for everyday use.
Using computer modeling, a team discovered that plasmas activate metal catalysts in packed bed reactors, causing faster and more efficient chemical reactions. This process could lead to more efficient processes for removing air pollution, converting CO2 into fuels, and producing fertilizer.
Researchers have found an extremely hot magnetosphere around a white dwarf, a remnant of a star like our Sun. This discovery sheds light on the origin of highly ionised metals in some white dwarfs, which were previously a puzzle. The study reveals that the magnetic field traps material flowing from the surface, heating it up dramatically.
Researchers at Michigan Tech have developed a new approach to high-frequency MRI machines by using radio frequency probes inspired by microstrip patch antennas. These designs increase MRI resolution and provide uniform magnetic fields, leading to better images.
The new magnetostrictive transducer from SwRI offers more precise inspections and reduces human error in structural health monitoring. It can withstand extreme temperatures and automatically adjusts frequencies, making it an extremely reliable sensor for detecting material flaws and corrosion.
Researchers at Rice University have created high-powered, fast-charging lithium metal batteries using carbon nanotube films. The films effectively quench dendrite growth, allowing the batteries to retain 99.8% of their coulombic efficiency over 580 charge/discharge cycles.
A new ultra-light haptic glove enables users to interact with virtual objects in a highly realistic way, generating forces of up to 40 Newtons. The device has potential applications in gaming, healthcare and augmented reality.
A Florida State University research team has developed a unique organic-inorganic compound containing zero-dimensional molecular clusters that emit highly efficient blue light. The newly discovered material has an efficiency of over 80%, making it a promising candidate for photon-related technologies.
A new digital platform DIME has been launched in Denmark to register and make accessible the growing number of metal detector finds. This initiative aims to strengthen collaboration between amateur archaeologists and museums, allowing for a broader sharing of knowledge and promoting democratic cultural heritage management.
Researchers have developed a novel technology to improve lithium metal battery performance by coating the anode with a lithium silicide layer. The new approach overcomes dendritic growth issues, leading to improved rate capability and cycle stability.
The study reveals that thermodynamic forces, specifically the difference of equilibrium electro-chemical potentials between metals, drive symmetry breaking in seed-mediated growth. This allows for the creation of asymmetric bimetal nano-heterostructures with unique properties and functions.
SwRI engineers have created a small cooled turbine that can operate thousands of hours without repair, significantly improving drone efficiency. The new design uses a 3D printed impeller to cool the turbine, allowing it to maintain performance while increasing reliability.
Researchers at The University of Tokyo's Institute of Industrial Science developed a method to detect the motion of individual molecules using terahertz radiation. This breakthrough allows for the study of molecular vibrations and electron tunneling with unprecedented sensitivity.
Researchers at Hong Kong Baptist University have developed a metal compound that inhibits the enzyme lysine-specific demethylase 5A (KDM5A) in TNBC tumours with less toxicity in mice. This discovery holds great promise for the development of targeted drugs for TNBC therapy, offering a new approach to treating this difficult form of bre...
Researchers have developed a new laser technique to bind aluminum with plastic in injection molding, creating stronger lightweight materials. The method uses continuous infrared lasers to pretreat aluminum sheets, improving adhesion strength and paving the way for more efficient vehicles.
Researchers found that a specific type of fish louse, Argulus japonicus, can accumulate high concentrations of metals, potentially serving as an early warning system for water quality. The lice's unique mechanisms for protecting themselves from toxins may hold the key to detecting metal pollution.
A Rutgers University-led study demonstrates that ordinary WiFi can be used to detect weapons, bombs, and explosive chemicals in bags at museums, stadiums, theme parks, schools, and other public venues. The system uses wireless signals to identify objects and materials, reducing security screening costs and manpower needed.
Researchers from UNIGE have developed a new type of chemical sensor capable of detecting the presence of metals in the environment. The sensor forms a 3D structure with molecules that emit light when metal ions are present, making it easy to detect and identify different types of metals.
Researchers at the University of Michigan have developed a new rechargeable battery technology using lithium metal that can double the output of current lithium ion cells. The ceramic electrolyte-based approach eliminates the historic issues of poor durability and short-circuiting, enabling faster charging rates and longer lifetimes.
Researchers discovered a new property in cuprate superconductors where resistivity scales linearly with high magnetic fields. This finding contradicts existing theories and suggests non-quasipartical mechanisms are at play.
A new technique has been developed to manufacture non-stick food molds at a lower cost and with ease. The method involves transforming metal sheets covered in teflon and PVC into the desired shape using a punch guided by a computer, resulting in functional molds.
Researchers create nanodevices using kirigami-inspired technique to filter out circularly polarized light, potentially enabling new applications in sensing, computation, and communications systems. The approach could lead to smaller, more efficient detectors and nanoscale optical isolators for laser optical communications systems.
Researchers used high-energy laser beams and optical sensors to observe nitrogen behavior at extreme conditions, confirming it exists as a liquid metal. The findings shed light on the fundamental nature of nitrogen and its potential role in the planet's atmosphere evolution.
A team at TUM has succeeded in generating ultrashort electric pulses on a chip using tiny plasmonic antennas, operating above the surface and reading them in again. This breakthrough closes the terahertz gap, enabling frequencies up to 10 terahertz.
Scientists have observed superconducting vortices in an ordinary metal when it is brought into contact with a superconductor, demonstrating the existence of induced quantum coherence. This discovery enables a better understanding of the processes occurring at the interface between superconducting and normal phases.
Researchers have developed a lightweight carbon nanofiber-based collector that can restrain dendrite growth and achieve uniform lithium deposition. The collector, made with high nitrogen-doping levels, improves energy density by up to 2489.7 mAh/g, enabling the practical use of lithium metal anodes.
A Rutgers-led international team of scientists has verified a 53-year-old theory on ferroelectric metals, creating a new class of two-dimensional artificial materials that exhibit ferroelectric-like properties at room temperature. These findings have the potential to spawn a new generation of multi-functional devices and applications.
Researchers at Georgia Tech have elucidated the role of a small metal catalyst and an amino acid in the release of oxygen from water in photosystem II, a complex protein structure found in plants and algae. The discovery sheds light on the intricate chemistry of photosynthesis and has potential applications in improving crop productivi...
Researchers at Aalto University and Université de Montréal study the feasibility of flexible solar cells for industrial-scale production. The main challenges include encapsulation, durability, and environmental impact.
Recent study reveals supports in atomically dispersed catalysts play a significant role in catalysis, not just as ligands. The findings suggest that metal atoms on the support can directly participate in the activation of reactants.
New research reveals metal-related pollution began in the Balkans over 500 years before appearing in western Europe. The study provides a new perspective on metallurgy and economic change in the region, confirming the Balkans played a significant role in mineral exploitation during the Dark Ages and Medieval Period.
Michigan Tech researchers explore lithium's mechanical properties to improve battery storage capacity and safety. Their findings highlight the importance of lithium's orientation-dependent elastic properties in controlling battery performance.
Scientists have introduced a universal pH-regulated assembly method for DNA nanostructures, using ethylenediamine to control self-directed cohesions. This method enables the formation of various geometries without specific base sequences, expanding dynamic DNA nanotechnology applications.
Researchers created high-performance lithium metal electrodes with over 10 mAh cm-2 capacity and 98% efficiency. The innovative design enables reversible, dendrite-free battery operation and paves the way for future-generation high-energy batteries.
Researchers have developed a new theory to explain why stretching or compressing metal catalysts can make them perform better. The theory suggests that applying a strain to a catalyst's atomic lattice can tune its reactivity, enabling fine-tuning of catalyst performance throughout different reaction steps.
Researchers at the University of Delaware have made a breakthrough in mitigating dendrite formation in lithium metal batteries, enabling them to be used for electric vehicles. The new method uses porous materials to suppress dendrite growth, resulting in improved battery performance and safety.
Researchers discovered the crystal structure of Na2B30, a superhard boride, and found it stable under standard conditions. The study reconciled long-standing debates over its formula and properties.
Researchers have developed two new equations to correct the Kinchin-Pease equation's limitations, providing accurate predictions of radiation damage in materials. The new equations consider athermal recombination and replacements-per-atom, improving the usable lifetime of materials in nuclear reactors and other environments.
Researchers at the University of Illinois have developed a new technology that can switch heat flows 'on' or 'off' using liquid metal droplets. This innovation has the potential to significantly improve system performance and reliability in electronics systems.
A team at Nagoya University developed a metal-free catalyst, tetramethylammonium methyl carbonate (TMC), that expands the substrate range of trans-esterification. TMC reacts with alcohols to form alkoxide ions, which attack esters to produce complex target esters in high yields.
Researchers found that children aged 4-11 prioritize physical forces over previous rewards when making decisions. By age 7, functionality information becomes the dominant factor in their decision-making process.
Researchers at KAUST have developed a super-adsorbent metal-organic framework (MOF) that can adsorb water at high capacity and release it easily when humidity levels fall. This MOF has been shown to outperform existing materials in terms of capacity, reversibility, and cyclic performance.
Scientists from Siberian Federal University and Nikolaev Institute of Inorganic Chemistry create active layers in hydrogen detectors using metal phthalocyanines and palladium membranes. This increases the sensor's sensitivity, enabling detection of hazardous gases and aiding in disease diagnosis. The researchers plan to further improve...
KAIST researchers have developed a new technique to improve the chemical stability of electrode materials in solid oxide fuel cells. By employing a small amount of metals, they can extend the lifespan of these energy technology devices. This innovation has the potential to improve the long-term performance and durability of fuel cells.
Researchers developed an operando electron paramagnetic resonance (EPR) technique to detect lithium metal plating in lithium ion batteries. This technique provides real-time information on the onset of lithium plating and its extent during charging, supporting the development of improved electric vehicles.
Researchers at the University of Waterloo have developed a new battery technology that uses lithium metal electrodes to increase energy storage capacity. The breakthrough enables electric vehicles to travel up to 600 kilometres on a single charge, three times the current range.
Melt drainage through percolation continues even with low melt fractions, suggesting all but 1-2% of melt can be drained. This process enables planetesimal core formation.
MIT researchers discovered that under some conditions, melted metal particles can actually prevent them from sticking to a surface. Instead, the particles bounce away and leave behind a solid bond when they resolidify.