Articles tagged with Nickel
Researchers developed a ceramic fuel cell with reduced nickel content, improving stability and performance by 1.5 times compared to conventional cells. The new technology suppresses reduction-oxidation failure, allowing for frequent start-ups in applications like electric vehicles.
Researchers have discovered three undesired off-cycle pathways in nickel-catalysed Negishi cross-coupling reactions, including ligand scavenging, reduction-oxidation pathways and the formation of unorthodox Ni/Zn clusters. The study provides a new understanding of the inner workings of these reactions.
Researchers at Osaka University have developed a stable and reusable nickel phosphide nanoparticle catalyst that exhibits high activity and selectivity in the hydrogenation of glucose to sorbitol. The catalyst produces D-sorbitol with yields over 99%, making it suitable for sustainable, low-cost production in various industries.
Pumas in California experienced significant energetic costs when navigating physically difficult terrain or high-risk human disturbance areas, resulting in reduced space use. This study found that male pumas were particularly affected, with a 68% decrease in daily distance traveled and total area traversed over two months.
Researchers at the University of Tsukuba have developed a method to produce acid-resistant catalysts using graphene, improving hydrogen gas production efficiency. The study shows that few layers of graphene allow protons to penetrate during hydrogen evolution reactions, crucial for maximizing efficiency.
Researchers at the DOE/Pacific Northwest National Laboratory have developed a process to grow high-performance single-crystal nickel-rich cathodes, overcoming challenges of polycrystalline materials. The new technology identifies the cause of 'crystal gliding' in batteries, which can lead to microcracks and reduced battery lifespan.
Researchers developed a real-time analysis platform to evaluate the thermal stability of EV battery cathode materials using transmission electron microscopy. The study identified the thermal degradation mechanism and created a safety protocol for high-performance cathode materials with increased nickel content.
A Baylor College of Medicine team found nickel toxicity as the underlying cause of the devastating epidemic of Mesoamerican Nephropathy (MeN) in Nicaraguan coastal communities. The study revealed low-dose exposure to nickel causes systemic inflammation, anemia, and kidney injury, progressing to chronic kidney disease in 90% of patients.
Researchers at KAUST have developed a fast and efficient way to make a carbon material that can dissipate heat in electronic devices. The new material, called nanometer-thick graphite film (NGF), is approximately 100 nanometers thick and can be grown on nickel foils using chemical vapor deposition.
A 100 million light year away, an unusual Type Ia supernova has been observed by a Florida State University led research team. The supernova's slow brightening and unusual characteristics are unlike any other, providing valuable insights into the origins of these powerful explosions.
A Virginia Tech chemistry lab has successfully split water molecules into hydrogen fuel and oxygen gas, paving the way for a renewable energy future. The team's new technique reassembles a catalyst to improve efficiency and stability, solving a key barrier in the process.
Researchers developed a Ni-MOF that can capture acetylene with extraordinary efficiency and selectively from ethylene streams. The material has a synergistic combination of tailor-made pore sizes and chemical docking sites, making it especially efficient.
Scientists from University of Groningen discovered that nickelates' metal state can be tuned using strain and oxygen vacancies, leading to improved conductivity. This finding may help design electronics emulating neurons and developing cognitive computing devices.
Researchers at Martin-Luther-University Halle-Wittenberg have developed a method to significantly improve the properties of inexpensive nickel hydroxide electrodes during electrolysis. The treatment process increases the material's stability and activity, allowing it to outperform more expensive catalysts.
Researchers estimate Earth's core is composed of approximately 80-90% of the planet's bulk carbon, with a tiny fraction present in the core itself. The study measured the preference of carbon for mixing with iron and nickel at high pressures and temperatures, revealing a significantly lower affinity than previously reported.
Scientists have discovered that ultra-strong metals can be created by reducing grain size to below 10 nanometers, contrary to previous assumptions. The study found that high pressure overcomes grain sliding effects, leading to extreme strengthening in finely grained samples.
Researchers at Purdue University have developed a hybrid technique to fabricate strong and corrosion-resistant nickel with high-density ultrafine twin structure. The new material exhibits improved mechanical strength, low corrosion current density and high polarization resistance, making it suitable for applications in the automotive, ...
A novel elastocaloric cooling material made from nickel-titanium alloy was developed using additive technology, showing high efficiency, ease of scaling-up, and minimal environmental impact. The material demonstrated robust mechanical integrity, withstanding one million cycles without degradation.
A team of researchers from Tokyo Tech has developed a novel memory device that can switch between three states using nickel-based layers, leading to extremely low energy consumption and faster performance. The device is inspired by solid lithium-ion batteries and boasts a miniature battery-like architecture.
Researchers develop self-heating battery to charge EVs in 10 minutes for 200-300 mile range, maintaining 2,500 cycles or half a million miles. Lithium plating reduces cell capacity and causes electrical spikes.
Researchers created microscopic, 3D-printed tori (donuts) coated with nickel and platinum to mimic biological behavior. These 'micro swimmers' can swim in water, respond to signals, and transport particles, potentially delivering targeted drugs or aiding in micromixing.
Researchers from Cornell University have developed a novel technique called magneto-thermal microscopy to visualize the spin orientation of antiferromagnetic materials. This breakthrough enables control over the material's textures and unlocks new possibilities for high-density storage and faster electronic devices.
A new big data technique has revealed the previously unknown properties of nickel, enabling applications in data storage, biosensors, and quantum computing. Researchers discovered that nickel can produce a huge magnetic field when made into single-crystal nanowires and subjected to mechanical energy.
A study by University of California, Riverside researchers found high concentrations of metals such as lead, nickel, and chromium in e-cigarette aerosols. The team analyzed six popular e-cigarette tanks and their atomizers, revealing that the model with fewest metal parts had the fewest metals in its aerosol.
Researchers at Rutgers University have discovered a new kind of magnetic state in ultra-thin iridium-nickel interfaces, challenging theories on quantum materials. The findings could lead to greater manipulation of quantum materials and deeper understanding of the quantum state for novel electronics.
Researchers at SLAC National Accelerator Laboratory have made the first nickel oxide material that exhibits clear superconducting properties. The discovery is significant as it opens up new possibilities for high-temperature superconductors, which could revolutionize electronic devices and power transmission.
A team of researchers at Texas A&M University has made a groundbreaking discovery about nickel's corrosion behavior. They found that coherent twin boundaries in pure nickel are prone to corrosion, contrary to previous assumptions.
A team of scientists has developed a method to study ultrafast spin-flip scattering rates in ferromagnetic Nickel and nonmagnetic copper using X-ray emission spectroscopy. As temperature increases, ferromagnetic nickel shows a decrease in emissions due to increased electron-phonon interactions.
The team found that the special nickel nucleus (78Ni) is more stable and rigid than other isotopes with similar numbers of neutrons. This discovery challenges current understanding of nuclear physics and has implications for our understanding of matter's origin.
Researchers used heavy ion accelerator to demonstrate nickel 78's stability, finding it maintains spherical shape like doubly magic isotope, but with a surprise: lighter isotones may lose magic nature due to deformation.
Researchers have developed an anode for electrolysis of seawater into hydrogen and oxygen, utilizing nickel sulfide and nickel-iron hydroxide catalysts. This innovative approach enables the production of clean fuels without desalination, opening doors to a more sustainable energy future.
Researchers at Brookhaven National Laboratory have identified the causes of capacity fading in nickel-rich layered materials, which could lead to improved battery performance for electric vehicles. The team used multiple research techniques, including synchrotron light sources and machine learning, to pinpoint the problem and provide p...
Thermally-painted metasurfaces yield perfect light absorbers that can be used for sensing, solar panels, anti-counterfeiting and stealth technologies. The technique creates a nanostructured surface that absorbs more than 99% of red light.
A study published in Nature Communications found that the Great Dying, a massive extinction event 252 million years ago, likely targeted plant life before animal species. The research team discovered high concentrations of nickel in Australian sediment, which may have been released from Siberian volcanoes and poisoned plant life.
Researchers at UH have reported a new class of polyethylene catalyst with exceptional turnover frequency and potential for high-strength plastics in medical and other applications. The nickel-based catalyst has the potential to produce ultra-high-weight polyethylene, but further work is needed to improve its commercial viability.
Scientists developed a mesoporous nickel material, increasing its surface area by 400 times. This enables applications in hydrogen engines, solar cells, nanoelectronics, and the automotive industry.
The US Advanced Battery Consortium has funded an extension of the patented lithium-ion battery recycling process developed at Worcester Polytechnic Institute. The process can recycle spent Li-ion batteries and produce new cathode materials, including nickel-rich cathodes for commercial-grade automotive batteries.
Researchers at Empa develop high-performance watch springs through electroplating, enabling improved accuracy and long-term stability. The team's goal is to master the process of miniaturization and understand its effects on material properties.
Researchers analyzed oxide films at atomic level to understand their impact on metal corrosion. The team found that the growth rate of oxide films determines their structure and composition, enabling new ways to protect metals.
A team of researchers has investigated heat transport in a model system comprising nanometre-thin metallic and magnetic layers. The results showed that the heat is distributed much slower than expected, taking hundreds of times longer to reach thermal equilibrium.
Scientists at KAUST developed a controlled method to create triple-layered hollow nanostructures with electrocatalytic activity, suitable for renewable fuel production and water desalination. The hybrid materials outperform single substances in terms of properties.
Researchers at the University of California, San Diego, have found that competition between interfacial ordering and disordering leads to brittle fractures at grain boundaries. They also discovered bipolar interfacial structures cause brittle intergranular fractures in sulfur-doped nickel.
Researchers at Penn State developed a self-heating battery that can rapidly charge regardless of outside temperature. The battery's unique design allows for 15-minute charging at temperatures as low as -45 degrees F, reducing range anxiety and increasing driving distances.
Researchers at NIST have developed a new material for making nickels that is 40% less expensive to produce, reducing the cost of materials from seven cents to five cents per coin. The new design uses an integrated computational materials engineering framework and advanced alloys to achieve this cost reduction.
Researchers have developed a novel host material, nickel ferrite, to increase the volumetric capacity of lithium-sulfur batteries. The S/NiFe2O4 composite delivers an initial discharge capacity of 963.6 mAh/g and good cycle stability, outperforming sulfur-based composites with carbon hosts.
A novel actuating material system, nickel hydroxide-oxyhydroxide, has been developed at HKU Engineering that can be triggered by visible light and electricity. This material can exert a force equivalent to 3000 times its own weight, making it suitable for various applications in micro-robotics, human assist devices, and medical devices.
Scientists create new diamond etching process using solid-solution reaction of carbon into nickel at high temperature, enabling continuous diamond etching at a high rate. This technology avoids plasma damage and allows for selective etching of diamond in direct contact with nickel.
Researchers Matthew Alford and Thomas Peacock call for collaborative scientific research to inform the future of seabed mining. The study highlights the importance of sediment plumes in assessing marine life impacts and recommends limited-scale operations with academic researchers.
Researchers discovered that when live bacteria are spun at high speeds, they aggregate and form a dense disk, but when the spinning stops, the disk collapses due to imperfections on its surface. The resulting rapid movement of bacteria away from their origin of rotation creates an explosion-like effect.
Researchers at Oregon State University have developed a 3D printable alloy that enables the rapid manufacture of flexible computer screens, bendable displays, and soft robots. The new alloy, created by adding nickel nanoparticles to galinstan, can be layered into tall structures with good conductivity and self-healing properties.
Researchers at Brookhaven National Laboratory have identified a new electrocatalyst that efficiently converts carbon dioxide into carbon monoxide, a highly energetic molecule. Single nickel atoms were found to catalyze the reaction with up to 97% efficiency, paving the way for recycling CO2 for usable energy and chemicals.
Researchers discovered xenon compounds with nickel and iron at extreme pressures and temperatures, which could explain the missing noble gas in Earth's atmosphere. The study provides evidence for previously theorized compounds of iron and xenon under core conditions.
A study found that e-cigarette heating coils release potentially hazardous levels of lead and other toxic metals into the aerosols vapers inhale. Chronic exposure to these metals can cause lung, liver, immune, cardiovascular, and brain damage, as well as cancer.
Researchers at Caltech developed a new technique to create complex nanoscale metal structures using 3D printing. The process involves synthesizing organic scaffolds that contain metal ions, allowing for the creation of metallic structures smaller than previously possible.
Researchers discovered that coating nickel nanoparticles with silica shells fragments the material, creating a small core of oxidized nickel surrounded by smaller satellites embedded in a silica shell. The technique may prove useful for increasing the surface area of nickel available for catalyzing chemical reactions.
A new analysis suggests that metal shortages will not significantly impact battery production, but short-term bottlenecks in lithium and cobalt supplies are possible. Researchers recommend monitoring supply chains to avoid disruptions and exploring alternative materials.
A team of scientists discovered a global spike in nickel at the time of the Great Permian Extinction, suggesting massive Siberian volcanic eruptions caused significant environmental changes. The eruptions led to intense global warming and depleted oxygen in oceans, contributing to the extinction of over 90% of species.
Researchers used the Surface Forces Apparatus to investigate crevice and pitting corrosion in confined spaces. They observed intense local corrosion resulting in sudden pit formation, highlighting the complexity of the process and its dependence on electric potential difference.
The researchers created a three-layer structure of nickel, graphene, and a compound of iron, manganese, and phosphorus that can produce both hydrogen and oxygen simultaneously. The material is scalable, stable in acidic and basic solutions, and requires less energy than traditional catalysts.
Researchers have discovered an organic material with record-high electrical conductance, exceeding that of traditional metals and semiconductors. The antiaromatic molecule displays superior conductivity due to its unique electronic structure, which allows it to efficiently transport electrons.