Articles tagged with Transition Metals
Researchers at Hokkaido University have developed a simple radical-based reaction to create unsymmetric variants of molecular compounds used in transition metal catalysts. This method opens up new avenues for designing catalysts and utilizes abundant ethylene feedstock.
Scientists have created a novel, noble-metal-free catalyst for producing hydrogen from water, which could lower costs and increase sustainability. The high-entropy alloy's remarkable performance and corrosion resistance were demonstrated in practical experiments.
Researchers developed an electrochemical technique to recycle highly valuable homogeneous catalysts, extending their life cycle. The method uses an electrical field to separate catalysts from mixtures and bind them to a surface, allowing for reuse and reducing energy consumption.
Researchers at Institute of Physics, Chinese Academy of Sciences have discovered new hafnium polyhydrides exhibiting superconductivity above 80K, a temperature threshold previously unattained by any 5d transition metal hydride. The study reveals these compounds display high critical fields and Ginzburg-Landau superconducting coherent l...
Scientists develop a method to produce atomically thin seams of light using in-plane heterostructures, enabling customizable strain and circularly polarized light. This technology has the potential to create efficient and chiral electroluminescence for applications in quantum optoelectronics.
Researchers at the University of Freiburg have successfully synthesized the cationic low-valent aluminum complex [Al(AlCp*)3]+, which exhibits ambiphilic reactivity. This breakthrough brings us closer to developing catalysts using abundant and earth-abundant metal like aluminum, potentially replacing expensive transition metals.
Researchers at KAUST have found that molybdenum plays a central role in electrochemical hydride transfer, a process for producing valuable chemicals or carbon-free fuels. The discovery could enable more sustainable production of sustainable fuels and chemicals.
Researchers have successfully isolated and characterized rhodium(VII), the third-highest oxidation state of an element, using advanced ion trap technology. This discovery has significant implications for understanding exotic transition metal oxides and potential applications in materials science.
Researchers discovered an electrolyte additive that protects nickel-rich layered cathodes from degradation and improves cycling performance. The additive forms a protective layer on the cathode, reducing transition metal loss and increasing energy density.
Researchers at Pusan National University have developed oxidation-resistant copper thin films, which could potentially replace gold in semiconductor devices. The films' flat surface reduces the growth of copper oxides on its surface, making them resistant to corrosion.
The review article discusses unconventional metal-based materials for electrocatalysis, including s-, d-, and f-block metals. It aims to accelerate research and development of novel, innovative catalyst materials for efficient green hydrogen production.
Researchers at Tokyo Metropolitan University have developed a scalable way to assemble nanowires into nanoribbons, a promising material for sophisticated electronic devices and catalysts. The method involves weaving together nanowires with chalcogen atoms and heat, resulting in atomically thin ribbons with unique properties.
A team of researchers from the University of Exeter has made a breakthrough in developing all-optical switching of magnetization using transition metals. The new technology enables energy-efficient nanoscale magnetic storage devices with unprecedented tunability and scalability.
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.
Researchers develop new epitaxial growth mechanism to achieve large-scale single-crystal WS2 monolayers, overcoming a crucial hurdle in replacing silicon with 2D materials. The technique enables uniform alignment of small crystals and leads to the successful growth of wafer-scale single-crystals of WS2, MoS2, WSe2, and MoSe2.
Researchers have developed bimetallic catalysts that enhance oil upgrading, decreasing heavy hydrocarbons and increasing light hydrocarbons. The test results showed positive influence on petroleum quality, transportation efficiency, and environmental impact.
Researchers developed a predictive tool using %V bur (min) to categorize phosphine structures as active or inactive in many experimental datasets. This advancement will facilitate organometallic chemistry and catalysis, enabling easier computation and prediction of phosphine reactivity.
Researchers at the University of Konstanz have discovered that MXenes can be switched repeatedly between a flat and a rippled shape by applying femtosecond laser pulses. This discovery could lead to improved energy storage capacity, enhanced catalytic or antibiotic activity, and new applications in sensing and active plasmonic devices.
Researchers found two distinct magnetic phase transitions in PbFeO3, including a continuous spin reorientation at 418K and a weak ferromagnetic transition at 600K, which could enable the development of faster and more efficient spintronic devices.
Researchers have successfully created a stable armchair-like hexazine N6 ring in tungsten hexanitride under high-pressure conditions. The compound, WN6, exhibits exceptional hardness and toughness, making it a promising candidate for high-energy-density materials.
The study reveals that a complex salt of bismuth hexabromide is the true active photocatalytic species involved in Bi2O3-driven atom-transfer radical addition (ATRA) reactions. This finding paves the way for more efficient and sustainable catalysis in organic transformations.
Researchers at Tokyo Metropolitan University have created a way to mass-produce atomic-scale nanowires of transition metal chalcogenides, paving the way for industrial deployment in next-gen electronics. The scalable synthesis method enables the production of centimeter-sized wafers with highly crystalline and ordered wires.
Researchers developed a new method to synthesize unconventional nanoalloys composed of immiscible metals, which showed superior performances in electrocatalytic reactions. The approach uses vapor-source technology and allows for control over composition and size, enabling the creation of cost-effective, highly active, and durable elect...
Researchers at Kazan Federal University have developed oil-soluble transition metal-based catalysts to reduce viscosity and contaminants in heavy oils. The study shows promising results, with potential applications in aquathermolysis reactions and heavy oil recovery.
Scientists have synthesized brand-new transition metal carbonyl complexes, including Ta2(CO)12 and M(CO)7+, which transcend new chemical frontiers. These substances go beyond current compound limits, offering new possibilities for practical use and basic science research.
A team at Tohoku University has discovered a new principle for room-temperature superionic conduction, enabling the creation of safer and more energy-dense batteries. By using pseudorotation of transition metal hydride complexes, they achieved lithium ion conductivities of up to 79 mS cm^-1 at room temperature.
Researchers from USTC applied moiré engineering to correlated transition metal oxides (CTMOs), realizing electronic modulations with mesoscale patterns. This breakthrough enables spatially patterned electronic textures on demand in strained epitaxial materials, providing a new route for achieving novel properties.
Researchers at MIT used machine learning to streamline the discovery process for new materials, narrowing down 3 million candidates to eight promising options in just five weeks. The neural network was able to predict properties and optimize criteria, improving upon conventional analytical methods.
Researchers from the University of Münster have developed a novel approach to allyl functionalization using radical chemistry, generating π-allylpalladium complexes through visible light activation. The method has been shown to be highly selective and sustainable, with over 60 examples demonstrating its utility in various applications.
Researchers at the University of Warwick have isolated transition metal compounds of nitrous oxide, which provide clues into its potential use in sustainable chemical technologies. The discovery offers a valuable reference point in the field and is likely to stimulate future catalyst developments.
Researchers successfully produce bulk quantities of well-isolated single nanowires of TMM, which are only 3 atoms wide in diameter and 50 times longer than previous attempts. The team finds that isolated nanowires exhibit unique mechanical properties, including twisting when perturbed.
Experts at the University of Nottingham have achieved time-resolved imaging of atomic-scale dynamics and chemical transformations using metal nanoclusters. The study ranks 14 different metals in order of their bonding with carbon and catalytic activity, providing new insights into nanocatalyst behavior.
A research team at USTC developed a facile method for preparing functional carbon materials from small organic molecules. The transition metal-assisted carbonization process produces CMs with high carbon yield, desired microstructures, and abundant heteroatoms.
Researchers successfully predicted a non-metallic nitrogen-rich tungsten nitride, h-WN6, with exceptional hardness (57 GPa) and thermal stability. The material exhibits high energy density, making it a potential candidate for advanced applications.
Researchers from Xiamen University have synthesized cyclic ruthenium carbyne complexes with an unusually low carbyne carbon angle, showcasing their good stability and unique ambiphilic reactivity. The discovery provides a valuable complement to the chemistry of metal carbynes.
Researchers at Argonne National Laboratory have found that protactinium shares chemical similarities with both actinides and transition metals, revealing a unique intersection of their properties. This discovery could lead to novel applications for these elements and a deeper understanding of the periodic table.
A team of researchers from the University of Utah has investigated the bond dissociation energy property in transition metal silicides, including precise values for six specific compounds. The new method provides an accurate means of estimating bond dissociation energies, with smaller uncertainties than previous approaches.
Researchers at UNIST have successfully developed a new anode material for solid oxide fuel cells (SOFCs) that can operate on hydrocarbon fuels, offering improved stability and reduced production costs. The breakthrough enhances the potential for commercialization of SOFCs, which could achieve efficiency higher than 90%.
Researchers discovered a new class of catalysts that enables ammonia synthesis under mild conditions, with LiH playing a crucial role. The discovery breaks the linear scaling relations between activation energy and binding strength, allowing for unprecedented high NH3 synthesis activities at low temperatures.
Researchers at Boston College have developed a new type of cross coupling chemical reaction using a third reactant, expanding on the pioneering Suzuki-Miyaura coupling method. The resulting 'conjunctive' reaction takes place efficiently and offers high selectivity.
Physicists from India reveal Ti-V alloys' superconductivity is influenced by local magnetic fluctuations and spin fluctuations. The competition between these fluctuations and electron-phonon interaction determines the superconducting temperature threshold, contradicting previous assumptions.
A team of researchers from Berkeley Lab has made the first in situ electronic structure observations of a metal-organic framework (MOF) as it adsorbs carbon dioxide gas. The study demonstrates the effectiveness of Near Edge X-ray Absorption Fine Structure (NEXAFS) spectroscopy in probing MOF chemistry and gas adsorption.
Paul Chirik has been recognized with the NSF's Early Career Award for his innovative work in synthetic chemistry. His research focuses on using transition metal complexes to expand the scope of chemical reactions, leading to the discovery of a new method for activating atmospheric nitrogen.
Researchers at Penn State Energy Institute have developed a new process for removing organic sulfur from hydrocarbon fuels using low-temperature and pressure methods. The SARS process selectively adsorbs sulfur on metal species without affecting aromatic compounds.
Researchers use ultrashort laser pulses to activate a critical surface reaction, allowing for the oxidation of CO molecules on transition metal surfaces. This novel approach enables the system to rapidly transfer energy into the oxygen-metal bond, outpacing desorption processes and unlocking new chemical pathways.