Articles tagged with Catalysis
Scientists at TU Wien have developed a new photocatalyst design that can split water into hydrogen and oxygen using sunlight. This process, called photocatalytic water splitting, has the potential to produce environmentally friendly 'green hydrogen' with higher efficiency than traditional electrolysis methods.
Researchers from Prof. Martin's group at ICIQ develop a new strategy to create organic molecules of pharmacological interest using ketones as alkyl cross-coupling synthons. The method provides flexibility and mild reaction conditions, making it suitable for the synthesis of various organic molecules.
Researchers at MIT have designed a new type of photoredox catalyst that can be used to coat plastic tubing and perform chemical transformations on reactants as they flow through the tube. This breakthrough could enable the use of light-driven reactions in manufacturing processes, increasing efficiency and reducing waste.
A team of researchers has developed a unique catalyst that breaks down plastics into valuable molecules at an increased rate without sacrificing desirable product chains. The catalyst's activity and selectivity can be independently controlled, allowing for faster and more efficient plastic upcycling processes.
Researchers have found a way to perform hydrogen atom transfer reactions with fewer chemicals and less cost, making it more efficient for industrial and academic settings. The new method uses electrochemistry to create cobalt hydride catalysts, reducing the need for expensive oxidants and reductants.
Researchers at North Carolina State University have developed a new technique for extracting hydrogen gas from liquid carriers, making it faster, less expensive and more energy efficient. The new method uses sunlight and a reusable photocatalyst to release hydrogen molecules, reducing the need for rhodium and lowering production costs.
Researchers at Waseda University demonstrate a novel zirconocene-catalyzed epoxide ring-opening reaction under visible light, expanding the reaction scope and regioselectivity. The approach enables accessible synthesis of elusive alcohol products with improved efficiency and environmental sustainability.
The 27th North American Meeting will focus on technological challenges, breakthrough discoveries, and state-of-the-art research in catalysis. The meeting features plenary lectures by renowned experts in the field.
Researchers at the University of Pittsburgh have discovered a new catalyst, tungsten oxide, that can efficiently convert carbon dioxide into useful fuels and chemicals. This breakthrough could lead to a significant reduction in global warming by utilizing hydrogen produced from renewable energy sources.
Researchers from Tokyo Tech developed an alumina-supported iron-based catalyst that efficiently converts CO2 into formic acid with up to 90% selectivity. The new catalyst's excellent recyclability and low-cost nature make it a promising candidate for reducing atmospheric CO2 levels and providing energy via combustion.
Researchers discovered a soil microbe's enzyme that converts CO2 into carbon compounds 20 times faster than plant enzymes during photosynthesis. The enzyme uses pairs of molecules working in sync like jugglers, with a spot of molecular glue and twisting motion facilitating the reaction.
A new machine-learning framework has been developed to improve the design of catalysts, which speed up chemical reactions. The approach analyzes the conversion of carbon monoxide to methanol using a copper-based catalyst and identifies key steps that need to be tweaked to increase productivity.
A study by Rice University bioscientists has revealed the presence of a central metal ion critical to DNA replication and implicated in misincorporation. The research found that three metal ions are involved in the process, with the first supporting nucleotide binding and the second stabilizing the binding of loose nucleotides. This di...
Energy researchers have invented a device that electronically converts one metal into behaving like another to use as a catalyst for speeding chemical reactions. The invention opens the door for new catalytic technologies using non-precious metal catalysts, potentially improving efficiency and sustainability in various applications.
Researchers have discovered a zirconium-based metal–organic framework material that catalyzes the degradation of PET into its monomers. This process can be reused to make high-value PET products, enabling the development of a circular economy. The catalyst breaks down PET waste at 260°C with yields up to 98%
Scientists at Stockholm University have successfully studied the surface of a copper-zinc catalyst during CO2 reduction to methanol, revealing that zinc is alloyed with copper at the surface. This discovery opens up possibilities for more efficient materials and a green transition in the chemical industry.
North Carolina State University researchers have developed a faster and less expensive technique for producing hindered amines, a class of chemicals used in various products. The new method uses continuous flow reactor technologies to produce hindered amines within 30 minutes, with minimal byproducts.
Researchers create high-performance catalyst to pull ammonia and solid fertilizer from low-level nitrates in industrial wastewater, reducing carbon dioxide emissions. The process works at room temperature and under ambient pressure, with potential for decentralized ammonia production.
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.
A new study reveals that two equal charges in enzymes do not repel each other, but instead attract, facilitating chemical reactions. The researchers used protein crystallography to obtain a structural snapshot of the substrate before the reaction and found an attractive interaction between the enzyme and substrate.
A new hydrogen fuel cell has been developed using an iron catalyst, which could make green energy more accessible and affordable. The innovation allows for a significant reduction in the cost of one of the primary components, making it a viable alternative to fossil fuels.
Researchers have directly observed N2 adsorption and tunneling electron-induced desorption processes at the atomic scale using scanning tunneling microscopy. The study reveals dominant pairwise electrostatic interactions between K and N2, weakening the molecule bond towards dissociation in the Haber-Bosch synthesis.
MIT researchers devise a chemical reaction that allows them to synthesize phosphorus-containing rings using a novel spring-loaded molecule. This method enables the creation of useful compounds with potential applications in catalysts and pharmaceuticals.
Researchers from Konstanz University have developed a new class of water-soluble catalysts that allow for the direct manufacturing of polyethylene dispersions in water. This breakthrough enables environmentally-friendly and emission-free production of plastic coatings, reducing energy consumption and pollution.
Researchers developed an Ag3PO4 catalyst with high selectivity and activity for the electrooxidation of propylene into propylene oxide. The (100) facets of the Ag3PO4 cubes displayed superior catalytic activity due to the polarization of propylene, facilitating breaking of π bonding and C-O bond formation.
Researchers at Clemson University and SSSIHL discovered a novel way to combine curcumin and gold nanoparticles to create an electrode that efficiently converts ethanol into electricity. The discovery brings replacing hydrogen as a fuel cell feedstock one step closer, with potential applications in sensors and supercapacitors.
A research team successfully synthesized isoparaffin-rich gasoline from syngas using ZnAlO x-SAPO-11 oxide-zeolite (OXZEO) catalysts. The study achieved high selectivity for iso-/n-paraffins, with a ratio of up to 48.
Researchers at UIUC discover a new method for making tertiary amines, a crucial component in many medicines, using a simple and fast process. The reaction has the potential to lead to the discovery of new medicines for currently untreatable diseases.
Researchers at Northwestern University have developed a stable and selective catalyst for breaking down polyester-based plastics into their component parts. The method uses metal-organic frameworks (MOFs) and requires only three components: plastic, hydrogen, and the catalyst.
A novel visible light-promoted transition-metal-free acetalation-pyridylation of alkenes has been developed, providing a sustainable way to introduce pyridine and valuable functional groups. The methodology enables diverse modifications of drugs with excellent functional group tolerance.
A team from Goethe University has identified the spatial structure of the mannitol-synthesizing enzyme MtlD in Acinetobacter baumannii, which is crucial for its survival. This discovery could lead to the development of customized substances to inhibit the enzyme and combat this hospital pathogen.
Researchers have solved a long-standing puzzle in surface physics, explaining how individual atoms of a catalyst capture molecules to transform them. The breakthrough reveals that both the catalyst and its anchor material assume energetically unfavorable states for a short time to facilitate the reaction.
Researchers developed a novel protocol for the direct synthesis of amides via heterogeneous manganese oxide catalyzed successive cleavage and amidation of C-C bonds in alcohols. The method features good functional-group tolerance, cost-effective and recyclable catalyst, and broad substrate scope.
Engineers at University of Illinois Chicago develop additive material to make inexpensive iron-nitrogen-carbon fuel cell catalysts more durable. The material scavenge and deactivate free radicals, reducing corrosion and degradation in fuel cells.
Researchers have developed a new method to synthesize large defectless graphene crystals using carbon monoxide under ambient pressure. The process benefits from self-limiting conditions, resulting in purer graphene with faster growth rates and better crystal formation.
Researchers develop an eco-friendly organic catalyst system that improves the production of organic molecules from pyruvate, a key biomolecule in metabolic pathways. The catalyst promotes reactions where pyruvate donates electrons to produce molecules like amino acids.
Scientists at Tsinghua University Press have created a novel synergistic single-atom catalyst approach that enhances the efficiency of hydrogenation reactions. The new catalyst combines iridium nanoparticles and single atoms, overcoming the limitations of previous single-atom catalysts.
Engineer Thomas Senftle at Rice University has won a prestigious NSF CAREER Award to improve catalysts through machine learning. He will develop open-source models to speed up the development of catalysts with optimized particle/support combinations, aiming to reduce unwanted molecules in water.
Researchers have deciphered the activity of B12-dependent radical SAM enzymes, which regulate methane production by archaea. The study's findings have implications for biotechnologies that control key enzymatic events and could help reduce global warming.
Researchers at Northwestern University have developed an electron-based catalyst for noncovalent bonding, promoting self-assembly and complex structure formation. This breakthrough enables the control of molecular recognition processes at a fundamental level.
The newly developed KANPHOS database provides comprehensive information on kinase-associated protein phosphorylation, facilitating research into neural signaling pathways. The database contains information on phosphoproteins, phosphorylation sites, and participant kinases, allowing for searches based on various parameters.
Researchers have found that adding light elements like hydrogen, carbon, and boron to noble metal catalysts can significantly improve their activity and selectivity. This allows for novel effects in geometric and electronic modifications of noble metals.
Researchers at the University of Delaware have developed a novel catalytic technology that converts non-edible plants into renewable fuels, chemicals and plastics. By pulsing hydrogen gas on and off, they increase the population of active sites on catalysts, allowing reactions to occur up to 10 times faster.
Researchers from Nagoya Institute of Technology have successfully demonstrated the first enantioselective Pictet-Spengler reaction of acyclic α-ketoesters with tryptamines, achieving high yields and enantioselectivity. The study expands the scope of the process, which could accelerate drug development.
Scientists from Karlsruhe Institute of Technology (KIT) have successfully embedded enzymes in metal-organic frameworks to enhance their stability. This innovation enables the use of these enzymes in both aqueous and organic solvents, leading to improved productivity and stability in continuous reactors.
A new virtual ligand-assisted screening method enables efficient searching of ligands for optimal catalysis, accelerating reaction design. By simplifying ligand description with two metrics, researchers identify promising ligands and focus on real testing.
Researchers visualize ethylene polymerization on ordered iron carbide surface using in situ technology, revealing molecular insertion mechanism and chain initiation process. The study clarifies the scientific debate regarding chain initiation over Phillips catalysts and provides a method for controlling product chain length distribution.
A study by researchers at Pusan National University has investigated the relationship between surface structures and nanoscale friction in multi-layered CVD graphene. They found that only the top-most layer of graphene was twisted with respect to the rest, affecting layer-dependent nanoscale friction.
Researchers have developed a sustainable methodology to utilize biomass waste for efficient remediation of antibiotic pollution. Fe-contaminated biomass waste ferns are used to synthesize highly active single atom catalysts, demonstrating an appealing strategy for pollutant control and other applications.
Researchers have identified a novel enzyme that catalyzes the formation of glycosidic bonds in complex sugar moieties. The discovery provides fresh insights into carbohydrate metabolism and offers a breakthrough for the synthesis of sugar chains, which play key roles in various biological processes.
Researchers at Tokyo Metropolitan University developed a simple synthesis method for iron-based single-atom catalysts that activate peroxymonosulfate to break down difficult-to-degrade pollutants. The team discovered two distinct chemical pathways involving 'high-spin' state iron sites, which interact with peroxymonosulfate to create r...
Scientists have created a 'greener' way to clean wastewater treatment filters by using glucose-based nanoparticles, which effectively remove contaminants without destroying the membrane. The new system is more cost-effective and environmentally friendly than traditional methods.
A zirconium oxide-supported platinum-molybdenum catalyst enables the selective conversion of esters into valuable unsymmetrical ethers under mild conditions. This process offers a sustainable solution for producing these compounds from renewable biomass-derived materials, reducing waste and energy consumption.
Researchers at MIT have developed a new, inexpensive catalyst material that can produce oxygen from water, potentially replacing rare metals and reducing the cost of producing carbon-neutral fuels. The material, made of abundant components, allows for precise tuning and matches or exceeds the performance of conventional catalysts.
Researchers from Eötvös Loránd University have created a more efficient method for producing catalysts, which can speed up chemical transformations and reduce environmental impact. This breakthrough could lead to faster drug development and improved pesticide production.
Scientists have gained a new understanding of the atomic level interactions in complex catalysis, enabling more efficient and sustainable chemical production. Researchers used x-ray spectroscopy, machine learning analysis, and first principles calculations to model reactions and identify active site structures.
Researchers at Princeton University have developed a method to generate less-stable olefins from internal olefins catalytically, utilizing photocatalysis and chromium co-catalysis. This innovation allows for the conversion of internal olefins into terminal olefins, which are useful starting points in various chemical processes.
Researchers at the University of Bath have developed a simple and rapid chemical recycling process for polycarbonates, breaking down plastic waste within 20 minutes at room temperature. The new process can convert waste into its chemical constituents, preserving product quality over an infinite number of cycles.
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 research team has developed a highly active catalyst for CO2 reduction using electrocatalysts with dual-atom iron sites. The catalyst shows a 2.8 times higher conversion efficiency compared to single-atom catalysts.