Articles tagged with Catalysis
Researchers at Vienna University of Technology have successfully incorporated individual metal atoms into a surface, enabling precise control over their chemical behavior. This breakthrough enables the creation of more efficient catalysts for environmentally friendly processes.
Scientists have discovered a new catalyst material that speeds up hydrogen production using topological surface states. The material, Co3Sn2S2, has been shown to outperform conventional nano-structured catalysts despite having much lower platinum content.
Researchers developed a new process to form high-value chemicals called amides by coupling carbon and nitrogen bonds in an electrochemical reaction. This breakthrough enables the production of useful substances in various industries, including pharmaceuticals.
Researchers found that microdroplets of pure water spontaneously produce hydrogen peroxide at a concentration of around 1 ppm. This novel process has the potential to provide an inexpensive and environmentally friendly method for hydrogen peroxide production.
Scientists from the López Group study Pt single atoms supported on CeO2, proposing a dynamic charge that enables CO-oxidation at 150ºC. This new concept explains the unique reactivity of activated single platinum atoms, meeting the DOE emissions challenge.
Researchers developed a synthetic catalyst that produces chemicals like methanol using less energy, a cheaper alternative to gasoline. The catalyst mimics the function of natural enzymes in the laboratory, showing promise for industrial applications.
Researchers at Kanazawa University have identified catalysts that facilitate the photolysis of cyclopropenones under visible-light conditions. This novel method yields highly reactive alkynes without UV light dependence, making it a valuable alternative for industrial applications.
Researchers have developed amorphous/crystalline heterophase PdCu nanosheets with high chemoselectivity and catalytic activity. The phase transformation behavior of these nanosheets affects their properties, leading to improved catalysis in hydrogenation reactions.
A study found that customers who buy gifts for others spend 63% more in the year following the purchase, increasing their frequency and cross-buying. Gift design characteristics like assistance during the gift process and branded wrapping can enhance the effect.
The Rice team found that the Janus configuration, with a half-circle of zigzags opposite six armchairs, allows for tight contact with solid catalysts and preserves continuous nanotube growth. This discovery advances understanding of growth mechanisms and has implications for designing efficient catalysts.
Scientists at ETH Zurich developed a new catalyst technology converting CO2 and hydrogen directly into methanol, enabling the production of fuels and chemicals from renewable resources. The approach has significant potential to close the carbon cycle and produce sustainable methanol on an industrial scale.
Researchers from Ruhr-Universität Bochum and University of Oxford reveal the mechanism behind activating hydrogenases, complex enzymes that produce hydrogen efficiently. The discovery sheds light on the process of introducing a chemical cofactor into the enzyme's active center.
Researchers at KIST developed an eco-friendly nanocomposite catalyst made from agricultural byproducts to effectively remove environmental hormones from sewage and wastewater. The catalyst achieved a high removal rate of over 95% in less than one hour, outperforming existing methods.
Researchers at Carnegie Mellon University's Institute for Green Science unveiled a new field of sustainable chemistry using bioinspired oxidation catalysts. The catalysts, called NewTAMLs, can eliminate pharmaceutical micropollutants from water in under five minutes and have major cost savings over current water treatment techniques.
University of Utah chemists developed an algorithm that analyzes previous chemical reaction data to predict hypothetical reactions, narrowing the range of conditions needed for successful synthesis. The model successfully predicted outcomes for various reactions, offering a time-saving solution for pharmaceutical and materials research.
The study uses a novel neutral phosphonium salt catalyst to synthesize optically active oxazolidinones from glycidols and isocyanates, achieving high yields and selectivities. This breakthrough catalyst overcomes the challenges of conventional catalysis methods, paving the way for new drugs against drug-resistant infections.
The Bertarelli Foundation has awarded two grants to researchers at EPFL, focusing on developing smart upper limb prostheses that can provide sensory feedback to patients. Additionally, a non-invasive brain stimulation system is being developed to improve cognitive function in patients with mild cognitive impairment or brain injury.
A new imaging method developed at Cornell University helps remove pollutants from water by identifying optimal catalyst particle sizes and shapes. The technique, called COMPEITS, reveals previously unknown behaviors of catalysts, rendering pollutants nontoxic.
Researchers chemically treat zinc oxide nanowires to apply a uniform coating of titanium dioxide, enhancing catalytic activity and stability for the water-splitting reaction. The resulting nanowire-shell structures exhibit an amorphous structure with crystalline domains limited to a few nanometers.
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 develop an artificial metalloenzyme that protects a metal catalyst, allowing it to target cancer cells while sparing surrounding tissues. The system uses a sugar chain to guide the metalloenzyme to specific cells, delivering a potent anti-cancer compound.
A team of chemists at the University of Münster has developed a strategy for generating random hits in a systematic way, discovering new reactions and gaining deeper understanding of molecular processes. The study identified three previously unknown reactions, including a photochemical cycloaddition.
Scientists at Ruhr-University Bochum created underwater plasmas using optical spectroscopy and modelling, producing extreme conditions that briefly surpass the sun's temperature. The resulting plasma breaks down water molecules into their components, releasing oxygen crucial for regenerating catalytic surfaces.
Researchers Xinhe Bao and Omar M. Yaghi received the award for their significant contributions to nanoscience research, including new catalytic materials and reticular chemistry. Their work has led to discoveries in metal-organic frameworks and applications in carbon capture and water harvesting.
Researchers developed a new method to create OER catalysts with rich defects, enhancing their intrinsic activity and promoting mass transfer. This breakthrough provides a new direction for large-scale preparation and application of efficient OER catalysts.
A study from IRB Barcelona describes the reaction mechanism of DNAzymes, which catalyse RNA ligation through a similar mechanism to natural enzymes. The discovery may lead to improvements in current catalysers and the design of novel biocatalysers formed by DNA.
Researchers used DNP-NMR to elucidate the atomic-scale location and distribution of functional groups on MSN surfaces, disproving existing notions of synthetic strategies. This breakthrough provides mechanistic insight for guiding MSN synthesis in a more controlled way.
Scientists at Ruhr-University Bochum have developed nanocatalysts made from cobalt iron oxide that achieve high reaction rates in oxygen generation without the need for binders. The catalysts exhibit exceptional stability under extreme conditions, making them a promising alternative to expensive precious metal catalysts.
Researchers have developed a large interactive stability map of ternary nitrides, predicting 244 new stable compounds. Artificial photosynthesis has also been improved by controlling cobalt oxide catalysts. Additionally, atomically thin semiconductors called TMDCs have shown a quantum yield of 100% when treated with an electrical voltage.
Gold nanoparticles exhibit unique melting behavior on the nanoscale, forming a liquid shell around a solid core. The research provides new insights into how nanoparticles behave at elevated temperatures, with implications for nanotech applications in medicine, catalysis, and electronics.
Researchers at EPFL have developed a high-efficiency catalyst converting CO2 into carbon monoxide, paving the way for recycling fossil fuels' carbon dioxide to preserve resources and limit greenhouse gas emissions.
Scientists at Tokyo Institute of Technology have created an organic catalyst that can convert carbon dioxide into industrially useful formate products. The catalyst, called tetrabutylammonium formate, achieved 99% selectivity and produced the desired product with a 98% yield.
Researchers from the University of Konstanz's CRC 1214 create single-chain, uniform-shape monodisperse nanocrystals with high particle number densities. This breakthrough enables the creation of polymer materials based on nanoparticle assembly.
Researchers at Chinese Academy of Sciences create a chemocatalytic approach to produce cellulosic ethanol, achieving an ethanol yield over 40% in a one-pot process. The new method could overcome limitations on ethanol concentration and show great potential for practical production.
A cobalt-manganese-based nanocatalyst efficiently catalyzes the hydrogenation of carbon dioxide into liquid hydrocarbon fuels. The catalyst enables fuel production at lower temperatures than traditional methods without forming harmful byproducts.
Researchers from ICIQ have found that a magnetic field can directly enhance the production of hydrogen in alkaline water splitting via electrolysis, increasing production by up to twice fold. The low-cost technology has implications for industrial applications and offers a promising solution to the pressing need for sustainable energy.
Scientists at Brookhaven National Laboratory and the University of Arkansas developed a highly efficient catalyst for extracting electrical energy from ethanol. The catalyst steers ethanol down an ideal chemical pathway, releasing its full potential of stored energy, enabling applications such as liquid fuel-cell-powered drones.
Scientists at DGIST have created a new photocatalyst that can convert sunlight into hydrocarbon fuels with improved efficiency. The addition of copper and platinum nanoparticles enhances the catalyst's ability to recycle atmospheric carbon dioxide., Researchers aim to further improve the technology to make it commercially viable.
The University of Copenhagen has opened a new research center, TiPES, to study climate tipping points and develop improved climate models. The center aims to better understand the mechanisms of sudden and violent changes in the climate system, which could trigger dramatic new climatic changes.
Researchers have discovered a method to convert plastic waste into jet fuel using activated carbon as a catalyst. The process produces high-quality fuel with minimal environmental impact, offering a promising solution to the global plastic crisis.
Researchers have discovered the operation of a nanocatalyst at the atomic level, revealing its mechanism in modifying carbon-oxygen bonds. The study demonstrates the potential of developing effective and inexpensive copper-based catalysts for hydrogenation reactions.
Researchers summarize the latest progress in low-temperature methane conversion using thermocatalytic, electrocatalytic, and photocatalytic systems. The study highlights the importance of coupling multiple driving forces to activate methane and introduces catalyst design viewpoints for future technology development.
Researchers at EPFL have successfully synthesized a manganese-hydrogenase by incorporating a manganese complex into an iron-hydrogenase. The resulting semi-synthetic enzyme is active for the native reaction of iron-hydrogenase, marking a significant breakthrough in metalloenzyme design.
Researchers developed a new method to use rare and expensive catalysts sparingly by encasing precious metal salts in micelles. The process efficiently catalyzes oxygen reduction in fuel cells, outperforming traditional methods.
Scientists at the University of Bonn have developed a new method to study enzymes in action, allowing for the measurement of spatial positions and conformational changes. This breakthrough enables better understanding of biomolecules and potential insights into enzyme disorders.
Scientists have created a method to protect graphene and carbon nanotubes (CNTs) from environmental poisoning, preserving their extraordinary properties. The technique uses a protective layer to allow carbon diffusion, enabling controlled growth of these materials.
Researchers at Northwestern University have identified the enzyme responsible for methane-methanol conversion, which catalyzes the reaction at a single copper ion site. This discovery could lead to the development of new, human-made catalysts that convert methane to methanol with high efficiency.
Researchers developed a new class of single-atom nanozymes with intrinsic enzyme-like active sites, overcoming conventional nanozyme drawbacks. The discovery provides a new perspective on catalytic mechanism and rational design of nanozymes.
Researchers at Ruhr-Universität Bochum have discovered a new class of high entropy alloys suitable for electrocatalytic applications. These materials show potential in reducing energy losses and improving activity comparable to platinum catalysts in oxygen reduction reactions.
Scientists at Ruhr-University Bochum created a new approach to observe nanoparticles before, during and after electrochemical reactions. The method allowed them to monitor the structure and composition changes of individual particles throughout their entire lifecycle.
Researchers have developed a new catalyst for oxygen evolution, achieving higher catalytic activity and lower overpotential than traditional methods. The study shows that precise control of dual doping sites can lead to enhanced electrocatalysis.
A KAIST research team synthesized a peroxidase-mimicking nanozyme with superior catalytic activity and selectivity, overcoming the limitations of natural enzymes. The nanozymes can accurately detect target materials like hydrogen peroxide and acetylcholine, paving the way for early diagnosis of Alzheimer's disease.
Researchers at Berkeley Lab have created an all-liquid device that can be reconfigured to carry out complex chemical reactions. The device uses 3D printing and can automate tasks such as catalyst placement, bridge building, and reaction sequences.
Chemical engineers at the University of Pittsburgh have developed a system that mimics feeding, fighting, and fleeing responses in microbial particles. The system uses catalyst-coated sheets to create chemical gradients, allowing particles to respond to their environment and interact with each other.
Researchers at UTokyo develop a new process to produce ammonia more efficiently and sustainably than the current Haber-Bosch method. The Samarium-Water Ammonia Production (SWAP) process reduces energy consumption, raw material costs, and environmental impact.
Researchers at Brookhaven National Laboratory have developed a catalyst that efficiently decomposes nerve agents like sarin, eliminating their harmful effects. The multimodal approach used in the study identifies the active site of the catalyst and validates its effectiveness in real-life conditions.
Researchers from TPU, Germany, and US successfully functionalized 'white graphene' using eco-friendly photopolymerization without altering its properties. The new material was used as a catalyst for splitting water into hydrogen and oxygen, offering a promising alternative to expensive platinum or gold.
Researchers have developed a new type of carbon-based catalyst made from natural bacterial cellulose, showing high specific surface areas and large pore volumes. The catalyst exhibits versatility in accelerating various important reactions, outperforming state-of-the-art catalysts in some cases.
Researchers from University of Science and Technology of China successfully developed a ruthenium-based single-atom alloy catalyst accelerating water electrolysis with lower overpotential. The catalyst shows improved stability and activity compared to commercial RuO2, making hydrogen production through water electrolysis more efficient.
Researchers have developed a novel strategy for synthesizing non-precious metal catalysts for zinc-air batteries, achieving high electroactivity in neutral electrolytes. The resulting zinc-air battery exhibits superior discharge performance and stability.