Articles tagged with Nickel
Researchers have made a significant advancement in the synthesis of β-lactam scaffolds, structural components frequently found in essential antibiotics. The breakthrough uses nickel catalysts to overcome challenges in β-lactam synthesis, enabling more efficient and simplified production of high-value materials.
Researchers at USTC have developed a novel catalyst that achieves high electrochemical performance in both neutral and alkaline media. The asymmetric dinitrogen-coordinated nickel single-atomic sites enhance the intrinsic activity of the sites, resulting in a high turnover frequency of over 274,000 site−1 h−1.
Researchers develop a highly active, precious metal-free catalyst for ammonia decomposition. The new Ni-based catalyst outperforms conventional alternatives at lower temperatures, offering a promising solution for hydrogen production from ammonia.
Researchers developed AlN diodes and transistors that can function above 300°C, with a record-breaking operation temperature of 827°C. The new devices were fabricated using sapphire substrates and nickel electrodes, which remained stable at high temperatures.
Researchers discovered 'oxygen hole' formation in LiNiO2 cathodes accelerates degradation and release of oxygen. Computational studies revealed nickel charge remains stable while oxygen undergoes changes during charging.
Researchers have developed a novel method for recycling valuable metals from spent lithium-ion batteries using spinning reactors. This technology simplifies the extraction-stripping process, allowing for rapid separation of metals in minutes with low concentrations of extractants.
Researchers have found a material, palladium, that is optimally suited for creating superconductors with high transition temperatures. This discovery has the potential to revolutionize electricity generation and transportation by enabling materials to conduct electricity without loss at normal room temperature and atmospheric pressure.
Researchers found that two outermost electrons from each nickel ion behaved differently, cancelling each other out in a phenomenon called a spin singlet. This led to the discovery of two families of propagating waves at dramatically different energies, contradicting expectations of local excitations.
Scientists at Brookhaven National Laboratory used x-rays to study the electrons in nickel-based superconducting materials, revealing substantial similarities with cuprate superconductors. The research could help scientists zero in on key features essential for these materials' remarkable ability to carry electrical current.
Researchers have synthesized NiO nanospheres with fast switching speed and excellent cycling stability, indicating promising application potential in high-performance electrochromic devices. The as-prepared nanospheres exhibited a fast coloring/bleaching speed and excellent cycling stability.
The increasing adoption of electric vehicles will significantly raise the global demand for battery-grade critical metals, leading to supply chain disruptions. By mid-century, the need for lithium could more than double, while nickel demand is expected to eclipse other critical metals.
A Chinese research team has successfully synthesized a stable polymer with a nickel backbone that exhibits conductive, thermally stable and interesting optoelectronic properties. The new material can be processed in solution and demonstrates strong length-dependent light absorption with narrow band gaps.
A new hybrid catalyst converts CO2 into ethylene in one pot, using abundant earth materials. The catalyst achieves high efficiency in CO2 reduction to CO, with up to 60% conversion rate to ethylene.
Researchers developed an asymmetric electrochemical radical functionalization method for alkenes and allylation, achieving high selectivity. The approach enables efficient organic synthesis, paving the way for exploring new chemical spaces.
Researchers studied the strong nuclear force using nickel-64 nuclei, discovering that they change shapes under high-energy conditions. The team used advanced detectors to analyze gamma rays and particle direction, revealing two possible shapes for the nucleus: oblate and prolate.
Researchers have discovered a non-biological material that mimics learning behavior through electrical stimuli, enabling a new generation of supercomputers with AI capabilities. The discovery could overcome the stability-plasticity dilemma in AI development, allowing for more efficient and adaptable computing systems.
Engineers at Rice University have discovered a method to make oxygen evolution catalysis in acids more economical and practical. They replaced rare and expensive iridium with ruthenium, a far more abundant precious metal, as the positive-electrode catalyst in a reactor that splits water into hydrogen and oxygen.
Researchers in China designed a strategy to improve zinc-air battery performance by combining two transition metals, atomic iron and nickel, which deliver high electrocatalytic activity. The resulting rechargeable batteries achieve high peak power density, working rates, and long lifespan.
Researchers at University of Toronto Engineering use supercritical carbon dioxide to recover lithium, cobalt, nickel and manganese from end-of-life lithium-ion batteries. The process matches conventional extraction efficiency while using fewer chemicals and generating less secondary waste.
Researchers at Helmholtz-Zentrum Berlin used Auger photo-electron coincidence spectroscopy to study the occupation of outer d-orbital shells in copper, nickel, and cobalt. The results confirm known findings for copper and nickel, but reveal highly delocalized d electrons in cobalt.
Researchers at Hokkaido University have developed a new catalyst that uses carbon dioxide to produce propylene more efficiently than existing methods. The catalyst also captures and converts carbon dioxide into useful resources. This breakthrough contributes to the carbon neutralization of the petrochemical industry.
A team of researchers led by Prof. Shinya Hosokawa analyzed the atomic configurations of Pd42.5Ni7.5Cu30P20, a champion bulk metallic glass, and found its characteristic configurations that lead to its excellent glass-forming ability.
A new field study reveals a previously unobserved fluid dynamic process that affects the ocean's deep-sea mining operations. Researchers equipped a pre-prototype collector vehicle with instruments to monitor its sediment plume disturbances, finding that the plumes remained relatively low and spread under their own weight.
Researchers created an unnatural monoterpene skeleton using nickel catalysis, enabling enantioselective transformation of bulk chemical isoprene. This work provides a new approach to access terpenoids with different biological activities.
Researchers at Ohio State University have developed an artificial protein that could provide new insights into chemical evolution on early Earth. The protein, inspired by a key enzyme in energy production, has been shown to build molecules one step at a time, shedding light on how organic chemistry matured on the planet.
Researchers at NIMS and Osaka University successfully fabricate nickel single crystals with minimal crystalline defects, paving the way for widespread use in heat-resistant jet engine components. The technique eliminates grain boundaries, resulting in stronger high-temperature materials.
A research group has synthesized electrode materials for lithium-ion batteries using inexpensive elements, reducing industrial reliance on rare metals like cobalt and nickel. The new materials also show promise in improving the safety of LIBs.
Researchers have developed a new ligand that promotes a direct nickel-photocatalyzed cross-coupling reaction. This novel tridentate pyridinophane ligand enables the discovery of key reaction steps and intermediate species in the catalytic cycle.
Researchers at Tokyo University of Science have discovered a method to improve the crystallinity of coordination nanosheets by mixing two metal ion solutions. This approach results in higher crystallinity and improved performance in devices such as electronics and batteries. The findings open a new pathway for tuning the functional pro...
A new study reveals that construction workers are at high risk of tracking multiple toxic metals into their homes, including arsenic, chromium, and lead. The study found a range of factors, such as lack of work lockers and poor hygiene practices, can impact metal concentrations in home dust.
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 at the University of Leicester have partnered with BHP to identify new areas for nickel and copper deposits critical to the electric vehicle (EV) revolution. The project aims to challenge current understanding of the nickel mineral system, potentially opening up new exploration search space globally.
Researchers developed a method to identify multiple coordination states adopted by nickel in molten salts, providing elusive information about their structure and dynamics. The study also revealed that changes in salt composition can significantly impact chloride exchange dynamics around nickel ions.
Researchers at University of Illinois have developed an electrochemical process to recover valuable metals from spent lithium-ion battery electrodes. The method produces high-purity coatings of cobalt and nickel with approximate purities of 96.4% and 94.1%, respectively.
Researchers at Skoltech and their colleagues have successfully created a magnetic material by 3D printing a gradient alloy from nonmagnetic powders. The resulting alloy exhibits ferromagnetic properties, opening up potential applications in machine engineering, such as electrical motors.
Researchers discovered that nickel can catalyze the cross-coupling of aryl ethers through a nickelate anion. This reaction pathway relies on the formation and stability of the catalyst, providing an alternative to traditional palladium-catalyzed cross-couplings.
Researchers introduce flower-like nickel phyllosilicates to epoxy resin, enhancing mechanical property, thermal stability, and tribological response. The addition of 5% nanofillers can suppress wear resistance by 86.6%, improving anti-wear properties.
Researchers at KTH Royal Institute of Technology developed an ultrasound-assisted extraction method for valuable metals from electric car batteries, reducing extraction time by 50% and increasing metal ion recovery. The new process uses gentler acids and eliminates the need for harsh chemicals.
A study of metal-rich asteroids has found that they have surfaces with 85% metal such as iron and nickel, similar to stony-iron meteorites. The research also identified four possible asteroid families in the main asteroid belt, which may hold clues about their origins.
A new catalyst developed by Tokyo Tech researchers can generate hydrogen gas from ammonia at lower operating temperatures than existing methods. The calcium imide-supported Ni-catalyst produces good ammonia conversion and offers a promising solution for the production of clean hydrogen fuel.
Researchers have discovered a way to induce magnetic waves in antiferromagnets using ultrafast laser pulses, potentially leading to faster and more efficient data storage. This technology could endow materials with new functionalities for energy-efficient and ultrafast data storage applications.
Researchers have observed a unique phenomenon where vibrations in a nickel oxide material increase with cooling, leading to the formation of faster fluctuations and ordered regions. This behavior is unusual and differs from the expected trend, which is that less thermal energy leads to more fluctuations freezing and order growing.
A team of Lehigh University researchers is studying a promising alternative catalytic process based on solid acid catalysts for ethylene dimerization. Using in situ and operando molecular spectroscopy, they aim to understand the surface structures of the catalyst and design more active catalysts with reduced environmental impact.
A team of chemists from Waseda University in Japan has synthesized aryl sulfides without using thiols, a toxic and smelly compound. The new method uses a nickel catalyst and environmentally friendly aromatic esters as feedstock, showing promise for both laboratory and industrial-scale applications.
Researchers at RUDN University designed a novel metal-containing compound with an unusual planar architecture, exhibiting spin glass behavior. This unexpected structure is promising for creating high-capacity memory storage devices.
Researchers have found that nickelates exhibit antiferromagnetic interactions similar to cuprates, but with differences in magnetic excitations and doping effects. The study provides a new window into the physics of unconventional superconductors and could lead to the discovery of better materials.
Researchers solve a major problem in manufacturing metallic wood, eliminating inverted cracks that plagued similar materials for decades. The new material allows strips of metallic wood to be assembled in areas 20,000 times greater than before, enabling the creation of stronger, more consistent devices.
Berkeley Lab scientists have developed a new class of materials called DRX, which can replace cobalt and nickel in lithium-ion batteries. These cathode materials offer higher energy density and can be made with inexpensive and abundant metals like manganese and titanium.
A new study published in Nature Communications confirms that the end-Permian mass extinction was caused by nickel-rich aerosols from volcanic eruptions. The study uses nickel isotope analyses to demonstrate a direct link between global dispersion of Ni-rich aerosols, ocean chemistry changes and the mass extinction event.
Researchers at Niigata University have developed a highly efficient nickel sulfide nanowire anode for electrocatalytic water splitting, which reduces the initial energy required for oxygen evolution and accelerates four-electron transfer. This breakthrough enhances long-term performance and stability of electrochemical cells.
Researchers discovered that a valence gradient can serve as a new approach for stabilizing high-nickel-content cathode materials against degradation and safety issues. By isolating the valence gradient from concentration gradient, they confirmed its critical role in battery performance.
Astronomers have discovered nickel atoms in the cold gas surrounding interstellar comet 2I/Borisov, revealing new information about an alien icy world. The presence of nickel, a heavy element not typically observed in cold environments, suggests the comet's composition is influenced by a short-lived nickel-bearing molecule.
A Belgian team discovered iron and nickel in the atmospheres of comets across the Solar System, even at great distances from the Sun. This finding has implications for understanding the early Solar System's composition.
Physicists at FAU have confirmed the long-predicted chiral Faraday effect in an experiment using nickel helices. This breakthrough provides a new piece of fundamental magneto-optical theory and has implications for astrophysics and quantum electronics.
A team of researchers at Michigan State University has developed more heat resilient silver circuitry by adding an intermediate layer of porous nickel, which helps to improve adhesion to ceramic components. The technology has the potential to benefit various industries, including automotive, aerospace, and energy.
Osaka University researchers report a stable and reusable nickel phosphide nanoalloy catalyst that achieves high activity and selectivity in the selective hydrogenation of maltose to maltitol. The catalyst's cooperation with its support enhances performance, allowing for efficient production of this sugar alcohol.
Scientists from RUDN University have synthesized three new chalcogenides using iodine-based high-temperature synthesis, resulting in rare rhombic system crystal structures. The new compounds were obtained using nickel, gallium, indium, sulfur, and tellurium, showcasing the key role of iodine in their formation.
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.