Articles tagged with Nickel
Researchers found that nickel is essential for creating the geodynamo effect that generates the Earth's magnetic field. Without nickel, convection currents cannot form, leading to a magnetic field. The study used advanced computer simulations to analyze the behavior of metals in the Earth's core.
Researchers found that nickel exhibits a distinct anomaly at high temperatures, which may explain the origin of Earth's magnetic field. This discovery challenges conventional theories and provides new insights into the planet's core.
Researchers demonstrate controlled spalling layer transfer technique to create multiple thin layers from a single GaN wafer, enabling improved thermal characteristics and lightweight stackability. This method also allows for measurement of material properties and can be applied at various stages of fabrication.
A team of researchers at Argonne National Laboratory has identified a nickel oxide compound with promising properties for high-temperature superconductivity. The compound, a metallic trilayer nickelate, successfully synthesized single crystals that resemble cuprate materials, a crucial step towards solving the field's defining problem.
Purdue University scientists have identified a new type of electrocatalyst that is both active and stable, which could solve a significant problem in fuel cells and electrolyzers. The nanoscale nickel islands on platinum substrate exhibit unexpected properties that make it an ideal candidate for promoting chemical reactions.
Researchers developed a new type of cathode that addresses electrochemical stability issues in lithium-oxygen systems. The ultralight all-metal cathode outperforms carbon-based cathodes with higher capacity and improved stability for 286 cycles.
Researchers have designed a nickel catalyst that transforms unrefined hydrocarbons and CO2 into pure fatty acids at room temperature and atmospheric pressure. This sustainable process has significant implications for the environment and could alleviate economic concerns in the production of fatty acids.
The creation of a Bose-Einstein condensate in nickel chloride enables the calculation of macroscopic properties, such as magnetic moments, by treating atoms as waves. This breakthrough uses a single wave function to describe the behavior of a large group of atoms.
Researchers at Hokkaido University have created a nickel complex that changes color and magnetism when exposed to methanol vapor. The material exhibits vapochromic properties, making it suitable for chemical sensing applications.
A study by Johns Hopkins Bloomberg School of Public Health found high levels of toxic metals in five leading e-cigarette brands, including cadmium, chromium, lead, manganese, and nickel. The liquid in these e-cigarettes contains the aerosol that is inhaled by users, posing a health risk when inhaled.
Scientists have identified three potential light elements - hydrogen, silicon, and sulfur - that could make up the remaining 5% of the Earth's core. These findings are based on experiments simulating the core's extreme conditions and matching them with seismological observations.
A new electrochemical technique can remove nickel from contaminated seawater by trapping it in calcareous deposits within a week. This cost-effective method uses galvanized steel electrodes and does not deplete calcium and magnesium levels in the water.
The study identifies a new nickel transporter crucial for the pathogen's ability to colonize the stomach and survive its acidic environment. The discovery sheds light on the genetic modifications that enabled H. pylori to adapt to this hostile environment, highlighting the importance of metals in bacterial pathogenesis.
Research shows that pre-sensitization to lipopolysaccharide (LPS) enhances nickel allergy in mice, shifting the immune balance towards a Th1 response. This finding suggests that an anamnestic history of oral infectious disease may contribute to nickel hypersensitivity.
Researchers at Argonne National Laboratory have developed a method to grow high-quality graphene on ultrananocrystalline diamond, reducing impurities and costs. The new process uses nickel to facilitate the growth of defect-free graphene, enabling its exploitation for advanced electronics and applications.
Researchers from TU Wien have proposed a new method to create gigantic spin currents in a very small period of time using ultra short laser pulses. The spin current is injected into silicon without creating a charge current due to a spin-selective effect, leading to extremely strong spin-polarization.
Researchers have identified a free radical as the key mechanism behind methane production in bacteria, resolving decades of controversy. This finding sets the stage for developing new technologies to harness and generate methane for energy purposes.
A new reaction method produces highly useful 1,2-dihydropyridines through a selective route, utilizing pyridine as an inexpensive and abundant substrate. The direct cross-coupling reaction employs a chiral nickel catalyst and activating agent to couple nucleophilic arenes with pyridine.
New research suggests that lithium-ion battery compounds can be toxic to certain soil-dwelling bacteria, which play a crucial role in environmental cycling. The study's findings highlight the need for more sustainable battery materials.
A self-heating lithium-ion battery can significantly improve electric vehicle performance in cold temperatures, reducing power loss and range anxiety. Developed by Penn State researchers, the all-climate battery uses nickel foil to heat up rapidly, increasing its capacity and efficiency.
Researchers at the University of Delaware have developed a low-cost nickel-based catalyst that can power fuel cells with unprecedented efficiency. This breakthrough could make hydrogen fuel cell cars truly affordable, potentially priced around $23,000 for a Toyota Mirai.
Scientists at DOE national laboratories discovered a simple manufacturing technique to form cathode material into tiny, layered particles that store energy while protecting themselves. This technique, called spray pyrolysis, is cheap and widely used, and could lead to cheaper and higher capacity lithium-ion batteries.
Berkeley Lab researchers have discovered a technique called spray pyrolysis that can improve the performance of lithium nickel manganese cobalt oxide (NMC) cathodes, which are crucial for electric vehicle applications. By controlling surface chemistry, they were able to reduce surface reactivity and increase material stability.
A team of scientists from the US Department of Energy's Brookhaven National Laboratory developed a hierarchical cathode material with two levels of complexity, protecting reactive materials from degradation. The structure allowed lithium ions to enter the material, enabling improved high-voltage cycling behavior.
Scientists at the University of Delaware have discovered a novel structure for bimetallic catalysts, which offer improved performance and ease of synthesis. The 'patched' surface exhibits dual active sites, enabling more efficient chemical reactions.
Researchers found that 2D boron properties vary based on interactions with metal substrates. Copper is identified as a suitable substrate to guide the formation of flat boron sheets. The discovery opens up new avenues for creating highly conductive 2D boron and exploring its potential applications in fuel cells and other fields.
Researchers have discovered a new pathway to construct carbon-oxygen bonds using a light-activated catalyst, expanding nickel chemistry's potential impact on pharmaceuticals and agriculture. The breakthrough overcomes previous challenges with traditional nickel catalysis.
Researchers at HZB have decoded the relationship between magnetic interactions and crystal structure distortions in a geometrically 'frustrated' spinel system. The team discovered new magnetic phases and created a complete phase diagram of the system, shedding light on the complex phase relationships.
Children and adults allergic to nickel can develop rashes after contact with it, including nickel-rich foods like peanuts, oats, and processed cheese. Easter egg hunts can exacerbate these reactions, especially in children who binge on chocolate during the holiday
Researchers at Caltech have developed a nickel oxide film that enables record-efficient and stable chemical processes in the production of fuels like hydrogen. The film works well with a membrane to separate oxygen and hydrogen gases, ensuring safety and efficiency in the system.
Researchers at UMBC isolated a peptide that binds strongly to lithium manganese nickel oxide, improving the potential power and stability of electrode materials. The peptides can latch onto nanoscale components, forming a bridge between conductive components and maintaining a connection through multiple charging cycles.
Researchers found a 10-fold decrease in harmful particles in second-hand e-cigarette smoke, but increased levels of certain toxic metals like nickel and chromium. This study provides insight for regulatory authorities and highlights the need for better manufacturing standards for e-cigarettes.
Scientists at Stanford University have developed a low-cost, emissions-free device that uses an ordinary AAA battery to produce hydrogen by water electrolysis. The battery sends an electric current through two electrodes that split liquid water into hydrogen and oxygen gas.
Researchers have developed an elastic material coated with microscopic, hairlike structures that tilt in response to a magnetic field. The microhairs can direct water upward and even control the flow of light.
A Rice University-led team has found a physical link between magnetic properties and electronic behavior in barium iron nickel arsenide, a key material for high-temperature superconductivity. The study uses neutron measurements to reveal an analogous behavior in the material, providing new clues to understanding this phenomenon.
Researchers at Princeton University have made a groundbreaking collaboration between two areas of research, enabling the formation of previously impossible bonds. The breakthrough uses photoredox catalysis and nickel catalysis to create powerful new reactions with unprecedented efficiency and scalability.
Scientists from MIPT, RAS, Kurchatov Institute and Kintech Lab Ltd have developed a new method to synthesize nickel-carbon compounds using electron irradiation. The study reveals potential electronic, magnetic and optic features of these compounds.
Researchers at MIT have developed a method to produce graphene directly on materials like large sheets of glass, enabling scalable manufacturing. This breakthrough could lead to advances in display screens, solar cells, and other electronic devices.
Scientists have discovered a new plant species that can absorb high amounts of nickel, accumulating up to 18,000 ppm without being poisoned. This rare phenomenon has great potential for developing green technologies such as phytoremediation and phytomining.
A team of MIT researchers suggests that methane-producing archaea, specifically Methanosarcina, were responsible for the largest mass extinction in Earth's history. The microbe's explosive growth was fueled by a sudden increase in nickel, emitted by massive volcanic eruptions.
By patterning the surface of nickel ferrite (NFO) thin films, researchers have reduced coercivity by 30-80%, depending on film thickness. This technique improves device performance and reduces energy use in applications like sensors, microwave devices, and antennas.
A study by Polytechnique Montréal found that metallic toys and low-cost jewelry contain toxic metals like cadmium, lead, copper, nickel, arsenic, and antimony. These metals can be mobilized into the digestive fluids when ingested, posing a risk to children's health.
Scientists at Stanford University have developed a new, potentially clean catalyst that can convert hydrogen and carbon dioxide into methanol with fewer side-products. The nickel-gallium catalyst offers promise for low-cost, low-pressure methanol production using renewable energy sources.
A long-term study by University of Jena scientists found that nickel-titanium alloy implants release low levels of nickel over time, posing minimal health risk. The research used a longer testing period than usual to examine the metal's behavior and concluded that it is safe for patients with no adverse effects.
Researchers have discovered that graphene remains its conductive properties even when coated with silicon, a breakthrough for transparent solar cells. The study shows that the embedded graphene layer has a carrier mobility roughly 30 times greater than conventional zinc oxide-based contact layers.
Researchers have discovered that sheets of hexagonal boron nitride can protect metals from oxidizing even at very high temperatures, such as 1,100 degrees Celsius. The ultrathin films are made of just a few atoms thick and have potential applications in industries like turbines, jet engines, and oil exploration.
A new thermocouple developed by researchers at the University of Cambridge can reduce drift by up to 90% at temperatures above 1300 degrees Celsius, potentially doubling the lifespan of engine components. This could lead to significant cost savings for manufacturers and improved fuel efficiency.
Using an airbrush, researchers can grow vertically aligned carbon nanofibers on several metal substrates, opening the door for incorporating these nanofibers into gene delivery devices, sensors, batteries and other technologies. The technique enables large-scale manufacturing processes, making it suitable for various applications.
Researchers have developed a new method to visualize material defects in thin-film solar cells using laser light, enabling the direct mapping of defect distributions. This breakthrough could lead to improved material quality and more efficient energy production by reducing temporary traps for charge carriers.
A new discovery by Penn State researchers may lead to the creation of cheaper clean-energy technologies. The team, led by Raymond Schaak, has found that a nickel phosphide nanoparticle can effectively trigger hydrogen production from water. This process is crucial for many energy-production technologies, including fuel cells and solar ...
New UK coins made of nickel-plated steel will increase exposure to nickel, potentially causing a four-fold rise in skin allergies. Scientists analyzed the new coins and found that handling them for one hour can deposit four times more nickel onto the skin than copper-nickel coins.
Research at the University of Pittsburgh found that bumblebees can taste and discriminate against certain metals like nickel but are more tolerant of aluminum, which may pose a risk to their health
Researchers at Brown University have made a breakthrough in making acrylate by combining carbon dioxide with ethylene, potentially leading to a cheaper and more sustainable way to produce the commodity chemical. The team discovered that Lewis acids can break open a five-membered ring, allowing for the formation of acrylate.
Researchers find that hot electrons generated by laser pulses cause ultrafast demagnetization in nickel, not the light itself. The study suggests a new possibility for spintronics research.
Researchers have successfully developed the world's first peel-and-stick thin-film solar cells, vastly expanding the potential applications of solar technology. The breakthrough allows for flexible and decal-like solar panels that can be attached to various surfaces without losing efficiency.
Researchers found that even three-nanometer-sized nanocrystals can suffer from dislocation-mediated plastic deformation when subjected to stress. This challenges the long-held assumption that ultrafine nanocrystals are defect-free.
Researchers have successfully increased graphene's conduction electrons' spin-orbit coupling by a factor of 10,000, enabling the construction of a switch that can be controlled via small electric fields. The discovery opens up new possibilities for building graphene-based components.
The material combines a plastic polymer with nickel particles, allowing it to heal efficiently while maintaining conductivity. The researchers tested the material by cutting it multiple times, finding it could regain up to 75% of its strength within minutes.
Researchers found that nickel creates a barrier in electrode materials, reducing charging and discharging rates. The team suggests ways to improve the materials by preventing nickel from forming these barriers.
Researchers have demonstrated a less-expensive way to create textured nickel ferrite (NFO) ceramic thin films, which can easily be scaled up for manufacturing needs. The new technique allows for the creation of NFO thin films with an aligned crystalline structure, maximizing their magnetic properties.