Articles tagged with Metals
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 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.
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.
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...
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.
The Global Hyperaccumulator Database contains data on 721 species of plants capable of absorbing high amounts of metal compounds. The database aims to facilitate the identification and utilization of these hyperaccumulators for environmental cleanup, particularly in mining-affected areas.
Semiconducting carbon nanotubes (CNTs) can significantly reduce crosstalk-induced noise in carbon nanotube-based VLSI interconnects. By acting as insulating shields, CNTs inhibit carrier movement and lower the radial dielectric constant, resulting in a 28% reduction of crosstalk.
Researchers at Ames Laboratory have discovered a metallic material, CaCo1.86As2, with a perfectly frustrated magnetic state that persists even at low temperatures. This finding offers a new pathway for studying frustrated magnets and their potential applications in quantum computing and high-temperature superconductivity.
Researchers at KAUST developed a solvent-free synthesis method for metal-sulfide nanoparticles using thiourea. The new method produces controllable composition and size of nanoparticles, with potential applications in electrical, optical, and chemical devices.
Researchers at UC Davis developed a simplified method to produce extremely low-density palladium nanofoams, which have potential applications in hydrogen fuel cells. The new technique achieves high loading capacity and excellent thermodynamic stability, making it an ideal candidate for industrial-scale use.
A new non-destructive method using Raman spectroscopy has been demonstrated to make abraded serial numbers on polymers visible again. Researchers from INRS have successfully recovered erased information from polycarbonate samples without damaging the material.
Researchers have captured the first atomic-level images of finger-like growths called dendrites that can pierce the barrier between battery compartments and trigger short circuits or fires. The images revealed that each lithium metal dendrite is a long, beautifully formed six-sided crystal.
A research team at Berkeley Lab-led study reveals surprising chemical reactivity in battery components previously considered compatible. They discovered defects and impurities in the oxidized surface layer of magnesium that drive unwanted reactions.
The AMOEBA force field provides a detailed understanding of protein-ion interactions by incorporating quantum methods. The model distinguishes selective ion binding in calcium and magnesium ions, shedding light on their role in various biological processes.
Scientists at University of Bristol develop new approach to monitor early stages of electrodeposition with nanometer resolution. By detecting subtle changes in water structure, they can track the formation of a metallic nucleus in real time.
Scientists at KAUST and Oxford University have created a method to produce centimeter-scale, highly pure perovskite crystals by exploiting surface tension. This technique enables the growth of large-area perovskites without being limited to specific metal cations.
New study reveals technical differences between Italian and Greek textiles, suggesting distinct cultural influences. Advanced analysis of preserved textiles provides insights into raw materials, weaving techniques, and thread counts.
Researchers at IBS developed first 2D field-effect transistor made of single material, overcoming efficiency limits of current 3D transistors. The new technique uses a polymorphic material, molybdenum telluride (MoTe2), to produce both metal and semiconductor components with low contact resistance.
A flexible supercapacitor with a longer cycle life has been designed by Queen's University Belfast researchers, which could power body sensors and improve patient comfort. The device is made of non-flammable electrolytes and organic composites, safe for the human body.
Researchers at MIT have found a new way to control the adhesion of freezing droplets on surfaces by manipulating their thermal properties. This discovery could lead to improved coatings in industries such as 3-D printing and turbine blade manufacturing.
Okinawa Institute of Science and Technology (OIST) scientists have designed a novel silicon-based anode to provide lithium batteries with increased power and better stability. The new anode, featuring nanostructured layers of silicon, improves the battery's ability to charge and deliver energy over time.
The CHANGE-DAPT trial found that following contemporary guidelines for dual anti-platelet therapy may not be preferable to older guidelines in reducing ischemic events, but increases major bleeding risk. Newer-generation drug-eluting stents have shifted the risk-benefit balance of ticagrelor in ACS patients undergoing PCI.
Researchers at the University of Illinois have identified a new, cheaper, and more environmentally friendly method for processing bio-oil into liquid fuel. The catalyst uses common bacteria and recovered metal palladium, which can be sourced from waste materials, reducing production costs and environmental impact.
North Carolina State University engineers have developed a hands-free method for filling complex microchannels with liquid metal using vacuum, eliminating the need for outlets and reducing defects. This approach enables broader use of liquid metals in electronic and microfluidic applications.
A study published in Scientific Reports shows that high-frequency alternating magnetic fields can be used to destroy bacteria encased in a slimy 'biofilm' growing on artificial joints. The treatment increased the effectiveness of antibiotic treatment, reducing the need for multiple surgeries and weeks of IV antibiotics.
Researchers have developed a metal-organic framework (MOF) material that can regulate humidity levels within a specific range. The material, Y-shp-MOF-5, takes up water in dry air but releases it when the relative humidity falls below 45%. This autonomous behavior maintains optimal humidity levels between 45-65%.
Researchers at CU Boulder have revamped a World War II-era magnesium production process that requires half the energy and produces a fraction of the pollution compared to current leading methods. The breakthrough could improve the production of strong, lightweight metal used in various applications.
Physicians have evaluated a new fabric-based endocervical curettage device, which uses a hook to collect tissue samples. The device reduces discomfort and increases the number of adequate specimens, leading to better results and fewer repeat biopsies.
Researchers use optical coherence tomography to analyze the size, number, and orientation of metal flakes in industrial car paint, improving efficiency in automotive finishing processes. The technique also shows promise for analyzing pharmaceutical coatings.
A team of astronomers discovered a rare superluminous supernova in a distant galaxy 10 billion years ago. The brilliant explosion, one of the brightest ever recorded, occurred at cosmic high noon when the rate of star formation was at its peak.
A novel theory explains how metal nanoparticles form, revealing a balance between bond strength and ligand binding. This understanding enables the creation of more efficient and sustainable nanoparticle production processes for applications like biolabeling and targeted drug delivery.
Researchers solved a mystery about lithium's structure, revealing its atoms are arranged simply like oranges in a box, contrary to previous complex results. The study used high-pressure experiments and advanced quantum mechanics to accurately observe the material's fundamental properties.
Researchers at UC San Diego have developed new electrolyte chemistry that enables lithium batteries to operate at -60°C and electrochemical capacitors at -80°C. This technology could improve the performance of electric vehicles in cold climates and enable space exploration applications.
Researchers at KAUST developed a new fluorinated MOF that selectively adsorbs water to dry gas streams, achieving energy-efficient dehydration. The innovation requires half the energy input of conventional procedures, highlighting potential for huge efficiency savings in gas production and transport industry.
Researchers explore metal nanoparticles for visible-light photocatalysis, enhancing charge-carrier separation and achieving broadband light-harvesting. However, challenges remain in optimizing particle size and improving efficiency.
Researchers developed a novel approach to lithium-ion capacitors using internal short-circuiting, achieving high energy storage capacity. The pre-lithiated multiwalled carbon nanotube anode showed improved performance, enabling the devices to store approximately 5 times more energy than conventional EDLCs.
Researchers at UC Riverside have discovered a new battery coating that stabilizes performance, eliminates dendrite growth, and increases the lifetime of lithium-metal anodes. The coating, made with methyl viologen, can enhance battery performance by three times compared to current standards.
Researchers extend Luttinger theorem to imbalanced fermion systems, introducing a constraint key to numerical calculations. The constraint preserves the radii of Fermi spheres, enabling separate control over up and down spin populations.
Researchers at Carnegie Institution have synthesized pure samples of Si-III, a semiconductor with an extremely narrow band gap, narrower than diamond-like silicon crystals. This discovery may lead to unpredictable technological breakthroughs in fields like solar energy and electronics.
Researchers have discovered that topaz granites are extremely enriched in lithium and have a high concentration of metals such as tin and tungsten. The study's findings may impact where to look for these metals across the region, particularly in Cornwall and Devon.
Scientists at ORNL and NCSU report growing graphene nanoribbons without a metal substrate, enabling controlled creation of interfaces with different electronic properties. This breakthrough addresses limitations in graphene's application in digital electronics.
A recent study by the University of the Basque Country found that not all metals in sediments directly affect human health, but only a fraction can be incorporated into the body. The researchers simulated metal release in the gastrointestinal tract and found that urban waste water contributes to bioaccessible metals.
Patients receiving Absorb stent showed outcomes similar to those of Xience metal stents between years one and two, but elevated risk of adverse outcomes at two years in smaller vessels. The study highlights the importance of using appropriately sized vessels and refined procedural techniques for optimal results.
Researchers at North Carolina State University have developed composite metal foams with enhanced properties, including reduced armor-piercing bullet penetration and effective radiation shielding. The new data provides a comprehensive overview of the materials' performance in various tests, including high-speed impacts and cyclic loading.