Articles tagged with Platinum
Researchers uncovered dynamic details of a platinum-based catalyst's active site, resolving earlier conflicting reports. They found that only certain platinum atoms play an important role in the chemical conversion, which may lead to designing more efficient and cost-effective catalysts.
Researchers at Tokyo Institute of Technology discovered that doping platinum thiolate nanometal clusters with silver increases photoluminescence by 18 times. The team found that the silver ion stabilizes the complex structure, maintaining a highly ordered tiara-like arrangement and enhancing phosphorescence.
Researchers have discovered a way to produce nanoribbons of TMDs, which are more abundant and cheaper than platinum, boosting their catalytic efficiency. The new catalyst could make hydrogen production more economical and play a key role in the transition away from fossil fuels.
Researchers at Karlsruhe Institute of Technology (KIT) have discovered that noble metal clusters are more reactive than individual atoms, allowing for improved removal of exhaust gases. The clusters exhibit optimal structure for high activity, enabling the development of catalysts with enhanced stability and long-term performance.
Researchers have developed a novel single-atom Pt catalyst that can operate stably at high temperatures, increasing electrode reaction rates by up to 10 times. This breakthrough could accelerate the commercialization of solid oxide fuel cells, next-generation eco-friendly power generation systems.
Researchers at Chalmers University of Technology have developed a new material that can detect toxic gases with high sensitivity. The single-atom thin platinum layer interacts significantly with its chemical environment, making it suitable for ultra-sensitive detection.
Scientists at Argonne National Laboratory developed a new nanocatalyst that uses gold to eliminate platinum dissolution, increasing fuel cell durability. The discovery is a breakthrough for PEMFC-powered transportation, offering a solution to the current performance limitations.
Researchers developed a new process to upgrade lignin bio-oil to hydrocarbons using dual catalysts, improving its usability as a fuel and source of chemical feedstocks. The process can be done at low temperature and ambient pressure, making it more practical and efficient.
Researchers have deciphered the movements of platinum atoms leading to surface degradation, enabling the development of more stable catalysts. This breakthrough paves the way for longer-lasting electrochemical energy conversion devices like fuel cells in the transportation sector.
Researchers at the University of Copenhagen have developed a new catalyst that can produce cheaper and more sustainable hydrogen-powered vehicles, reducing reliance on precious materials like platinum. The breakthrough could make hydrogen vehicles more durable and scalable, leading to a potential shift towards sustainable transportation.
Scientists designed a functional ternary Pt/Re/SnO2/C catalyst, which exhibits more than ten times higher activity in the ethanol oxidation reaction compared to commercial platinum catalysts. The new catalyst features improved stability and is suitable for use as an anode material in direct ethanol fuel cells.
Researchers created a platinum-titania catalyst that selectively breaks carbon-oxygen bonds in plant derivatives, producing biofuels. The strategy could be applied to design stable and active catalysts for industrial chemical production from biomass-derived molecules.
Researchers at Tokyo Institute of Technology design and test a catalyst composed of single platinum atoms trapped in C12A7 crystals, demonstrating high stability and activity for selective hydrogenation of nitroarenes. The approach could be adapted to various transition metals and withstand harsher conditions.
A new study by Brown University researchers reveals that the hydrogen atoms bound to platinum at high activity regions are actually inert bystanders, not participating in the reaction. Instead, they sit atop platinum atoms and meet up with each other to form H2 gas, making platinum reactive.
The NUS researchers developed a novel metal-based material using platinum and burnt paper, which is half as light as paper and can withstand temperatures up to 800°C. This material enables the creation of flexible and lightweight prosthetic limbs with real-time strain sensing capabilities.
Researchers identify a hyperploid salvage survival pathway in high-grade serous carcinoma cell line models that bypasses apoptosis and emerges as viable large hyperploid cells. This pathway may contribute to acquired resistance and genomic diversity of recovering tumor cells.
Researchers at Eindhoven University of Technology have developed a new platinum-nickel catalyst that accelerates chemical reactions 20 times more effectively than traditional platinum-based catalysts. This breakthrough has significant implications for the storage and conversion of hydrogen, a promising source of sustainable energy.
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 created nano-motors composed of platinum and gold to study movement against currents. The motors' tilt determined their movement, with tilted ones moving against the current by using a front-first downward tilt.
A study published in Scientific Reports suggests an asteroid or comet hit Earth 12,800 years ago, causing a period of extreme cooling and contributing to the extinctions of over 35 species of megafauna. The impact hypothesis is supported by platinum spikes found at research sites worldwide, including South Carolina, Europe, and Chile.
Researchers at EPFL's Laboratory for Soft BioElectronic Interface have developed a next-generation soft hearing implant that can send targeted electrical signals to the auditory brainstem. The new implant overcomes the limitations of current ABIs, which can only provide sound perception and are stiff and inflexible.
Researchers have created a platinum nanoreactor that enables visual detection and mass spectrometry fingerprinting of metabolic biomarkers, allowing for biopsy-free diagnosis of pancreatic cancer patients. The platform has shown sensitivity and specificity of 84% and 92%, respectively.
Researchers at Argonne National Laboratory successfully stabilized single atoms using record-high temperatures of up to 2000 K. The method enables the creation of stable single atom catalysts, which can remain in their place for unprecedented periods of time, maximizing atom-use efficiency and improving catalytic performance.
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 Georgia Institute of Technology developed platinum-graphene fuel cell catalysts with unprecedented catalytic activity and longevity. The new catalysts outperformed nanoparticle platinum in dissociation energy, suggesting potentially longer-lasting catalytic systems.
Researchers at Georgia Tech have developed a new platinum-based catalytic system that is far more durable than traditional commercial systems. The system, which uses selenium anchors to stabilize platinum particles, shows enhanced durability and catalytic activity.
Researchers at TUM have developed platinum nanoparticles that double the performance of current fuel cells. The particles are about one nanometer big and contain approximately 40 platinum atoms, resulting in high mass activity. This breakthrough could lead to widespread adoption of fuel cells in electric cars.
Researchers have discovered that platinum crystals grow directly on the floor of magma chambers, contradicting a long-held theory. This finding has significant implications for understanding the formation of other precious metal deposits.
Researchers have identified the main mechanism of photovoltage losses in copper oxide photocathodes as binding to defect states within the band gap, not at interfaces with a catalyst layer. This discovery is crucial for optimizing solar-to-hydrogen energy conversion efficiency.
Researchers from Henry Ford Health System demonstrated exosomes' ability to suppress chemotherapy-induced peripheral neuropathy and enhance the anti-tumor effects of platinum drugs. Exosome treatment significantly reduced tumor size by 80-91% compared to platinum drugs alone.
Researchers developed a catalyst that can remove pollutants at low temperatures, outperforming current technology and reducing platinum required. The breakthrough could have significant impact on exhaust emission control, directly addressing the 150-degree challenge.
Researchers produce a colorless liquid reservoir of metal-like discrete platinum atoms with high catalytic activity and stability, offering potential for reducing Pt consumption in the silicone industry. The scalable preparation method shields individual Pt atoms with hydrochlorides and docks them in the liquid through oxygen atoms.
A novel ruthenium-based catalyst has shown markedly better performance than commercial platinum catalysts in alkaline water electrolysis for hydrogen production. The electrochemical splitting of water to produce hydrogen is a crucial step in the development of hydrogen as a clean, environmentally friendly fuel.
Researchers at DESY NanoLab discovered that platinum oxidizes more readily than expected when exposed to high pressures of oxygen, forming nano-bubbles. This phenomenon has significant implications for applications such as catalytic converters in cars and electrochemical sensors.
Researchers developed a new catalyst composed of platinum and nickel, which is more efficient than pure platinum. The study used ultrabright x-rays to reveal the growth pathway and chemical characterization of the nanoparticles in real time.
Researchers developed a cheap and effective new catalyst that can split water just as efficiently as costly platinum. The catalyst is made from nanometer-thin sheets of metal carbide and is manufactured using a self-assembly process that relies on gelatin, similar to Jell-O.
Researchers have developed a novel platinum-cobalt core-shell alloy catalyst that improves the utilization of platinum in fuel cells, enabling the use of smaller amounts of the costly precious metal. The new catalyst also enhances durability compared to previous technologies.
Researchers from Brown University have developed a new alloy catalyst that reduces platinum use and maintains its activity after 30,000 voltage cycles. The catalyst's layered structure enhances reactivity while protecting cobalt atoms from degradation, outperforming traditional platinum alloy catalysts in fuel cell testing.
Researchers at Yale University and Brookhaven National Laboratory developed a new catalyst to break carbon-fluorine bonds, one of the strongest chemical bonds known. Single atoms of platinum were found to be strikingly effective in catalyzing bond cleavage and contaminant breakdown.
A new method has been developed to deliver curcumin to cancer cells, enhancing its effectiveness in treating various cancer types. The approach involves creating a sophisticated metallocyclic complex using platinum that increases curcumin's solubility and synergy.
Researchers used platinum particles as indicators for volcanic ash travel and dated sediments to pinpoint radical climate change patterns. The study connected these changes to three major catastrophic volcanoes from the Little Ice Age and Medieval Warming periods.
Researchers from Kanazawa University developed a method for rapid, high-precision on-site analysis of precious metals in wastewaters. The technique combines Liquid-electrode plasma-optical emission spectrometry (LEP-OES) with solid-phase extraction (SPE), achieving over 95% recovery of gold, palladium, and platinum.
Combination therapy of pembrolizumab and chemotherapy significantly improves overall survival and reduces progression risk in patients with non-squamous non-small cell lung cancer. The study found a 51% reduced risk of death compared to chemotherapy alone.
Researchers have induced magnetism in platinum with an electric field created by a paramagnetic ionic liquid, creating a switchable 2D ferromagnet. This breakthrough could lead to the development of devices that can simultaneously control charge and spin.
Researchers at UCL and Tufts University developed a platinum-copper alloy catalyst that breaks carbon-hydrogen bonds in methane with reduced energy consumption. The new catalyst is resistant to coking, rendering it more effective than traditional materials.
Researchers at the University of New Mexico and Washington State University have created a catalyst capable of reducing pollutants at lower temperatures expected in advanced engines. The new catalyst uses smaller amounts of platinum, the most expensive component of emission-control catalysts, while maintaining high temperature stability.
Researchers created a catalyst that can reduce pollutants at lower temperatures, relevant to advanced engines. The work uses smaller amounts of platinum and presents a new way to create more powerful catalysts.
Researchers at Sandia National Laboratories and University of California Merced developed a new catalyst that uses molybdenum disulfide to increase surface area and handle higher temperatures than platinum. The innovative design allows for more efficient hydrogen production, reducing the cost of fuel cells.
Manganese dioxide-based micromotors exhibit remarkable propulsion efficiency and can remove organic dyes from water with high efficiency. The study demonstrates the potential of manganese dioxide in catalytic micromotors, including protection against sulphur toxicity and efficient drug delivery.
Researchers developed a dynamic catalytic converter concept that optimizes exhaust gas treatment by adjusting platinum particle size and oxidation state in response to engine operation. This improves catalytic performance and reduces noble metal consumption, increasing economic efficiency.
Researchers at Tokyo Tech create a method to produce monodispersed zero-valent platinum clusters with precise atomicity using platinum thiolate complexes. This breakthrough enables the synthesis of high-performance catalysts for next-generation energy grids.
Researchers at Michigan Technological University have developed test strips for cancer detection that can identify minute concentrations of biomarkers using nanoparticles. The new technology adds a thin skin of platinum to gold nanoparticles, making it easier to observe changes on the test strip and increasing accuracy.
Researchers have developed biocells that use enzymes to convert hydrogen into electrical energy, rivaling the performance of platinum-based fuel cells. The new technology uses heat-stable enzymes that can withstand high temperatures and resist inhibitors, overcoming major hurdles in industrial development.
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 from Penn State and Florida State University have developed a new, industrially scalable catalyst that splits water into hydrogen with minimal external energy. The molybdenum disulfide alloy improves the efficiency of the process, enabling cheaper production of clean hydrogen fuel.
Researchers at Chalmers University of Technology have developed a new type of nanocatalyst that can significantly reduce the need for platinum in fuel cells. The nanoalloy allows for mass production, making it suitable for large-scale commercial breakthroughs and potentially replacing fossil fuels.
A new study found that women and minorities undergoing PCI are at higher risk of recurrent cardiac events due to their race, gender, and socioeconomic status. The PLATINUM Diversity trial enrolled a large sample of diverse patients and showed significant differences in adjusted outcomes between groups.
Researchers at Aalto University have developed a manufacturing method for electrocatalysts using one hundredth of the usual amount of platinum, reducing costs and increasing functionality. The new material has been proven to be stable and usable in laboratory conditions.
Researchers found platinum in soil layers coinciding with the Younger-Dryas climatic period, which may indicate an extraterrestrial impact event. The discovery contributes to evidence of a potential cosmic impact that occurred around 12,800 years ago and may have led to the extinction of Clovis people and animals.
Researchers use advanced electron microscopy to create 3D reconstruction of nanoparticle, enabling them to measure chemical order and disorder at the single-atom level. The study reveals insights into the material's properties and potential applications in high-density hard drives and disease detection.