Articles tagged with Metals
Researchers used machine learning to predict the most important factors underlying heavy metal pollution remediation in biochar-treated soils. Biochar nitrogen content and application rate were found to be the most crucial features in determining HM immobilization, with soil properties also playing a significant role.
Dr. Perla Balbuena's study uses quantum chemical methods to track specific reactions on Li-metal battery surfaces, revealing insights into polymer formation and surface chemistry. The research aims to optimize Li-metal batteries' performance and lifespan by controlling reactivity.
Researchers have discovered stable and mobile excitons in metal, a breakthrough that could speed up digital communication. Excitons can travel rapidly through metal without electrical charge, making them promising candidates as an alternative to free electrons.
Researchers have found direct evidence of strong electron correlation in ABC trilayer graphene, a two-dimensional material that can switch between metal, insulator, and superconductor states. The discovery provides insight into the underlying physics driving these switchable materials.
An international team of scientists has developed an organic semiconductor that can operate in the 5G frequency range, with a structure featuring ultralow capacitance and resistance. The innovation paves the way for mass manufacturing at low cost using solution processing techniques.
Researchers at Cornell University discovered that magnetism is key to understanding the behavior of electrons in high-temperature superconductors. They found that at a critical point, most of the electrons in a particular region vanish, and magnetism explains this phenomenon.
Researchers at UTSA are using a three-year DoD grant to improve the reliability of additive manufacturing for critical machinery. They aim to predict mechanical properties and dimensional stability of components fabricated with AM.
Researchers from Osaka University report a new technique for tracking the synthesis of core–shell bimetallic nanoparticles in real time, allowing for fine-tuning of nanomaterial preparation. The technique uses a piezoelectric resonator to monitor particle shape changes and track interdiffusion of metals.
Researchers at Goethe University Frankfurt have grown crystals with rare-earth atoms that exhibit surprising fast magnetic properties. The team found that the strength of these reactions can be adjusted by choosing different atoms, opening up possibilities for optimizing spintronics components.
Researchers from Washington University in St. Louis have discovered that the pore size of a battery separator plays a crucial role in determining the stability and safety of a battery. The study reveals that smaller pores can lead to localized metal ion penetration and increased risk of short circuits.
Researchers discovered a novel type of magnet, the antiferromagnetic excitonic insulator, which involves strong magnetic attraction between electrons in a layered material. The new state emerges when electrons form bound pairs with holes and trigger an antiferromagnetic alignment of adjacent electron spins.
A new study from Chalmers University of Technology outlines an optimized recycling process for electric vehicle batteries, reducing thermal treatment times to just 30 minutes and operating at room temperature. This process can increase the efficiency of metal recovery, lower environmental impacts, and reduce costs.
Researchers have successfully created a transuranium complex with a multiple bond to just one element, enabling the isolation of such compounds for the first time. The discovery has significant implications for nuclear waste clean-up and opens up new opportunities for actinide science.
A new method to produce hydrogen from water has been discovered, using cobalt and manganese as catalysts. This breakthrough could lead to a cleaner and more sustainable hydrogen economy, reducing reliance on fossil fuels.
Researchers at PSI's Laboratory for Muon Spin Spectroscopy have discovered strong evidence of exotic charge order and orbital currents in a correlated kagome superconductor. The findings provide a new insight into unconventional superconductivity and its relationship with the quantum anomalous Hall effect.
Scientists have successfully manipulated liquid metals in a non-contact manner by applying electromagnetic induction, allowing for the creation of unique shapes and structures. The discovery opens up new possibilities for advanced manufacturing and dynamic electronic structures.
A study published in Applied Economics analyzed the relationship between precious metal commodities and equity markets, revealing that gold and aluminum are the most desirable metals for investment. The research also found that copper and zinc have the largest spillovers on global equity indices.
Researchers have identified two new compounds that can inhibit the replication of human herpesviruses by targeting specific enzymes. This breakthrough offers new opportunities for developing agents against herpesviruses, which are currently difficult to treat effectively.
Scientists have successfully detected two-dimensional kagome surface states in the material RV6Sn6, offering a new approach to investigating intrinsic physics of kagome lattices. The detection was achieved using angle-resolved photoemission spectroscopy (ARPES) with real-space resolution.
Scientists have created a new protective coating using Al-Mg-Si alloy to resist corrosion in ships and marine facilities. The coating demonstrates improved corrosion resistance through a 'shielding effect', increasing the economic life of steel machinery.
Researchers developed an in-situ imaging method to visualize electron transfer on metal nanoplates, revealing site-dependent heterogeneity. The study decoupled mass transfer effects and extracted rate constants, providing insights into electrocatalytic reactions.
A combined experimental and computational study published in Nature Catalysis introduces a new class of complex metal hydride catalysts that can synthesise ammonia at temperatures as low as 300°C and pressures as low as 1 bar. These catalysts have the potential to pave the way for more sustainable means of ammonia production.
Osaka University researchers developed an ultra-thin film of magnetite with superior crystallinity and conductive properties, overcoming challenges in spintronics technology. The discovery enables the film to undergo a temperature-dependent resistivity change, crucial for implementation in quantum computing technologies.
Scientists at ORNL developed a scalable, low-cost method to improve materials joining in solid-state batteries, resolving one of the big challenges in commercial development. The electrochemical pulse method increases contact at the interface without detrimental effects, enabling an all-solid-state architecture.
Researchers developed a healable carbon fiber composite that can be repeatedly healed with heat, reversing fatigue damage. This material provides a way to break it down and recycle when it reaches the end of its life, offering a sustainable alternative to traditional thermosets.
Researchers reviewed dual-atom catalysts' synthesis, characterization, and electrocatalytic performance, highlighting their advantages over single-atom catalysts. They suggest DACs may bridge the gap between heterogeneous and biocatalysis, worth exploring in the future.
Researchers from City University of Hong Kong created a new titanium-based alloy using additive manufacturing, boasting unprecedented structures and properties. The alloy exhibits high tensile strength, excellent work-hardening capacity, and is up to 40% lighter than stainless steel, making it suitable for various structural applications.
The study found that a stack pressure of 350 kilo Pascal increases lithium particle deposition in neat columns, improving stability and reducing the risk of short circuits. Additionally, partial discharge during cycling can also boost performance without affecting the solid electrolyte interphase structure.
Researchers have developed a device that uses two-dimensional hybrid metal halides to control terahertz radiation, outperforming conventional emitters in signal efficiency and cost. The 2D hybrid metal halide device is also thinner, lighter, and more robust than traditional terahertz generators.
Researchers at Aalto University have developed a non-toxic alternative to traditional cyanide-based gold extraction processes. The new chloride-based method, called EDRR, achieves an impressive 84% gold recovery rate, surpassing the 64% recovered with traditional cyanide methods.
Researchers at Aalto University created intricate shapes like letters by manipulating tiny metal balls with vibrating plates and energy fields. The smart algorithm efficiently guided the particles to achieve desired shapes, inspired by natural phenomena like wind and water.
A new methodology, EMARS, was developed to directly identify the activity origin of Pt/Al2O3 industrial reforming catalyst by analyzing over 18,000 Pt atoms. The study found that density of supported Pt1 single atoms and Pt-Pt distance larger than 0.38 nm are correlated with aromatic production activity.
Researchers at Shinshu University successfully insert Mg2+ between graphite layers, achieving a large reversible capacity of ~200 mA h g-1. This breakthrough paves the way for developing magnesium secondary batteries with high energy density and long lifespan.
Researchers at Penn State developed a luminescent sensor that can detect and quantify low concentrations of terbium in complex acidic samples. The sensor uses a protein called lanmodulin, which is selectively binding to rare earth elements, and has the potential to help develop a domestic supply of these metals.
Researchers at UNIST have developed a thermoelectric tube using 3D printing that can effectively convert waste heat into electricity. The new technology has a high thermoelectric performance and is more effective than conventional cuboid-shaped devices.
Researchers from the University of Nottingham have developed a novel catalyst that combines homogeneous and heterogeneous features, defying traditional categorization. The discovery holds promise for increasing the active surface area available for catalysis, leading to more efficient and sustainable production of molecules.
Pasquali proposes splitting hydrocarbons to produce clean hydrogen energy and solid carbon materials, which could replace materials with large carbon footprints. This transition would generate robust growth in manufacturing jobs and improve production efficiency.
Scientists have long struggled to make reliable lithium-metal batteries due to high failure rates and safety issues. New nanoscale images reveal a hard buildup of solid electrolyte interphase, which tears holes in the separator and allows metal deposits to form a short, leading to catastrophic device failure.
Researchers from Tokyo Metropolitan University have developed a method to create thin films of tungsten with minimal stresses using high power impulse magnetron scattering. This breakthrough technology enables efficient deposition of metallic films without heat treatment, opening up new possibilities for the electronics industry.
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.
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.
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.
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.