Articles tagged with Catalysis
A new bio-based catalyst, copper stearate, has been shown to efficiently inhibit gas hydrate formation and facilitate in-situ oil combustion. The compound's high performance in low-temperature conditions makes it a promising solution for the petroleum industry.
A study by Rice University's Laboratory for Nanophotonics found that aluminum nanocatalysts with sharply pointed corners, dubbed 'octopods,' have a higher reaction rate and lower activation energy than similar shapes. The research builds on previous efforts to develop commercially viable light-activated nanocatalysts.
A research team has developed nanoscale copper wires with specially shaped surfaces to catalyze the conversion of carbon dioxide into ethylene, producing a conversion rate of over 70%. The new system is more efficient than previous designs and can run for extended periods without losing efficiency.
Scientists at Tokyo Institute of Technology create alloyed metal nanoparticles using the atom hybridization method, achieving superior catalytic activity and stability. The sub-nanoparticles (SNPs) exhibit high reactivity even under mild conditions, producing unique compounds and hydroperoxides.
Researchers successfully increased the catalytic activity of Rubisco in rice by transferring RbcS from C4 plant sorghum. This led to a 1.5-fold increase in catalytic rate and improved photosynthetic ability under high CO2 conditions. Further research is needed to apply this strategy to other major crops.
The study reveals that the real catalytically active phase for CO2 electroreduction is inconsistent with the as-prepared or post-catalyzed catalyst structure. High-performance CO2 electroreduction into formate is achieved on the operando regenerative structure.
Researchers develop a conceptually new process to produce cyclic carbonates from CO2 and basic building blocks, offering potential for biodegradable plastics and pharmaceutical intermediates. The process yields six-membered rings with great potential for creating new CO2-based polycarbonates.
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 developed a novel approach to manipulate catalyst active centers at the subnanometer scale, using nano-confinement to host multiple Fe and Cu single atoms in graphitic carbon nitride. This strategy enhances electrocatalytic performance and efficiency, particularly for nitrogen reduction reactions.
A Virginia Tech chemistry lab has successfully split water molecules into hydrogen fuel and oxygen gas, paving the way for a renewable energy future. The team's new technique reassembles a catalyst to improve efficiency and stability, solving a key barrier in the process.
A chemist from RUDN University created a green catalyst based on plant waste that reduces palladium consumption in cross-coupling reactions by up to half. The new catalyst is also reusable without decreasing efficiency, making it economically and environmentally friendly.
A new manganese-based single-atom catalyst has been developed, exhibiting high Faradaic efficiency and current density in electrochemical CO2 reduction. The catalyst outperforms all reported Mn SACs, paving the way for low-cost and efficient conversion of CO2 into useful chemicals.
A new platform for stereocontrol has been developed by Princeton University's MacMillan and Hyster labs, enabling the dynamic rendering of traditionally static stereocenters. This breakthrough allows for more efficient synthesis of complex molecules with specific stereochemistry.
Scientists have discovered a metal-free carbon-based catalyst with potential to transform chemical manufacturing, enabling more efficient reactions without expensive transition metals. The catalysts are robust and deliver unexpected catalytic reactions for various processes including hydrogenolysis, dehydrogenation, and hydrogenation.
Researchers at POSTECH have developed a new type of sandwich catalyst that can efficiently generate hydrogen energy through water electrolysis. The catalyst shows high activity and durability, outperforming conventional materials, with the potential to be applied to cost-effective hydrogen production processes.
A research team from Technical University of Munich has developed a synthesis process that drastically increases the activity of catalysts for removing sulfur from crude oil. The new process uses concentrated hydrochloric acid to improve catalytic performance.
A team of international researchers, led by the University of Bern, has created an electrocatalyst that improves the electrochemical reaction in fuel cells without a carbon carrier. This breakthrough technology promises stable fuel cell operation even at higher temperatures and high current density.
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.
Researchers at Arizona State University have developed a new strategy to harness sunlight and store it as carbon-neutral fuels. The study highlights the importance of catalysts in photoelectrosynthesis and proposes a less-is-more approach to improve energy efficiency.
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.
Cyclohexyl phenyl sulfide cleavage studied for degradation of sulfur-containing heavy oil. Copper compounds are found to be the most effective catalysts for heavy oil extraction, followed by cobalt and nickel.
Researchers discovered that small highly branched polymers can mimic modern biological protein enzyme function, potentially aiding in the origins of life. These simple catalytic structures may have played a key role in jumpstarting life on early Earth.
A new modular iridium catalyst allows unprecedented control over fatty acid derivative modification, enabling the production of valuable compounds from renewable resources. This breakthrough opens up new avenues for pharmaceuticals and plastics synthesis.
The study reveals how iron can be used to remove oxygen from plant materials without oxidizing, enabling more efficient and cost-effective fuel production. By anchoring iron with a carbon structure modified with nitrogen, the researchers created a catalyst that interacts less with oxygen, allowing for robust reaction performance.
Researchers at Waseda University have created a novel method to produce alicyclic compounds from commercially available arenes, promising to accelerate drug discovery research. The new method uses a palladium catalyst and malonates as reactants, producing highly functionalized molecules with diverse properties.
Scientists at Tokyo Institute of Technology have created a high-performing catalyst for ammonia synthesis using cerium nitride, leveraging the role of nitrogen vacancies. The new catalyst's performance is comparable to that of ruthenium-based ones, offering a potential eco-friendly alternative.
Researchers at Osaka University have discovered a new method to easily add lanthanide cubanes into an existing metallo-supramolecular framework. The team found that by soaking a crystal in a cubane-containing solution, the molecules become intercalated via a single-crystal-to-single-crystal transformation.
Hydrogenases can convert hydrogen efficiently like platinum catalysts. A team from Ruhr-Universität Bochum found that proton and electron transfers take place spatially separated but are coupled, crucial for efficiency. This discovery may lead to more efficient miniaturized hydrogenase catalysts.
A Brown University team has created a copper catalyst that can produce C2-plus compounds from CO2 with remarkable efficiency, surpassing other reported efficiencies. The catalyst's high selectivity is attributed to surface defects, which are crucial for carbon-carbon coupling reactions.
Researchers at Ruhr-University Bochum have developed a new phosphine-palladium catalyst that selectively converts organolithium compounds into desired products, reducing unwanted side reactions. The catalyst's high activity and selectivity enable industrial-scale production of pharmaceuticals, chemicals for agriculture, and other fine ...
Researchers at Oregon State University developed a new electrocatalyst for CO2 reduction, achieving high selectivity and efficiency in converting CO2 to carbon monoxide. The breakthrough enables the production of reusable carbon forms using renewable energy sources.
Scientists have developed a novel organocatalyst that can control radical reactions, enabling the synthesis of complex compounds. The catalyst, featuring an N-neopentyl group, promotes coupling reactions while suppressing side reactions, allowing for the synthesis of bulky molecules and pharmaceuticals.
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.
Researchers developed finned nanoporous materials that facilitate faster molecular transport, reducing transportation limitations in zeolite catalysts. The new design triples the efficiency of conventional catalytic materials and enables longer catalyst lifetimes.
A new DOE grant will support research on developing efficient electrochemical systems for renewable energy generation and storage. Dr. Eranda Nikolla's project aims to design catalytically active sites in non-stoichiometric, mixed metal oxides for oxygen reduction and evolution.
A recent study published in Renewable and Sustainable Energy Reviews has explored the potential of using catalytic pyrolysis to convert used tyres into alternative fuels. The process produces liquid fuel with aromatic compounds, as well as gas and solid products that can be used for energy production and carbon black reuse.
A team led by Argonne National Laboratory has discovered a new electrocatalyst that converts carbon dioxide (CO2) and water into ethanol with very high energy efficiency, selectivity for the desired final product, and low cost. This process could contribute to the circular carbon economy by reusing CO2 from industrial processes.
Researchers have developed a three-pronged approach to predict novel electrocatalysts, which can simulate many atoms at once and transform catalyst development. The new method allows for high-throughput screening powered by machine learning, accelerating the discovery of efficient electrocatalysts.
Researchers from Ruhr-University Bochum and Max Planck Institute discovered that the zinc component of the methanol catalyst is positively charged and has two copper-based active sites. This finding offers ideas for optimizing the catalyst in the future.
A team of scientists led by NTU Singapore has discovered parameters that determine the efficiency of spinel oxides as low-cost catalysts for water electrolysis. This breakthrough could lead to more efficient production of hydrogen fuel, a key component in a low-carbon economy.
Scientists at Tokyo Institute of Technology have developed a novel approach to synthesize manganese dioxide nanoparticles with specific crystalline structures and porous structures. The study found that adjusting the acidity of the solution can produce large spherical pores in β-MnO2 nanoparticles, leading to better catalytic performance.
Researchers have discovered a way for chemical reactions to accelerate Brownian diffusion by sending long-range ripples into the surrounding solvent. This finding challenges the traditional view of molecular motion and chemical reaction being decoupled.
Researchers at TU Graz have developed a method for assembling nanomaterials as desired using helium-droplet synthesis. The resulting nanoparticles have improved catalytic properties and are suitable for sensor technologies, such as laser and magnetic sensors.
Researchers from Kyoto University have developed a new method to synthesize dicarboxylic acids and generate hydrogen as a byproduct. Using renewable diols and an iridium catalyst, the process achieves greater efficiency and yield, offering a safer alternative for industrial organic chemistry.
Scientists at Tokyo Tech develop a novel method to measure local temperature of platinum nanoparticles in catalysts using X-ray absorption fine structure (XAFS) spectroscopy. This approach demonstrates that microwave heating selectively heats the metal nanoparticles, increasing reaction rates and reducing temperatures.
Researchers have developed a tandem catalytic system that converts carbon dioxide to methanol with high activity and selectivity at low temperatures. By encapsulating multiple molecular catalysts in nanoporous metal-organic frameworks, the team achieved efficient transformation and recyclability of the catalysts.
Researchers created a durable graphene-based catalyst that outperforms commercial catalysts and lasts longer, potentially enabling widespread adoption of hydrogen fuel cells. The breakthrough could address the high cost of platinum catalysts and reduce environmental impact.
A research team at KIST and TUB developed a nano-sized, coral-shaped silver catalyst electrode for high-efficiency carbon dioxide conversion. The new system can produce over 100 times more carbon monoxide than liquid-based systems, showing great promise for commercialization.
Scientists at Lawrence Berkeley National Laboratory found that copper catalysts are superior to purely metallic-origin catalysts in producing ethylene after oxygen is depleted. The team developed a method to 'reactivate' the catalyst by re-adding and re-removing oxygen, improving efficiency.
Researchers developed N-doped carbon encapsulated transition metal catalysts to optimize zinc-air batteries, showing remarkable ORR/OER bifunctional catalytic activity and improved performance. The catalyst was prepared by pyrolyzing solvent-free formed fechitosan chelates and small molecule nitrogen source.
Scientists at the University of Münster developed a new method to construct complex polyenes, such as retinoic acid, using small molecules as
A new catalyst has been developed that efficiently and reliably converts carbon dioxide from seawater into carbon monoxide, a critical step in producing liquid hydrocarbons. This breakthrough could enable Navy ships to produce fuel directly from seawater, eliminating the need for periodic refueling.
Researchers at Tokyo Institute of Technology have developed a new strategy for producing ammonia using lanthanum and nickel as catalysts. The new catalyst relies on nitrogen vacancies to split N2 molecules into H2, which is then converted into NH3.
Researchers at Waseda University develop a novel palladium catalyst called dcypt to enable efficient synthesis of aromatic esters. The 'ester dance reaction' can be combined with other reactions to produce compounds with diverse substitution patterns, making it a cost-efficient process.
A research team at POSTECH developed a new catalyst that improves the durability of automotive fuel cells when shut down. The Pt/HxWO3 catalyst promotes hydrogen oxidation and selectively suppresses oxygen reduction reactions, solving the corrosion issue.
Researchers developed a new strategy to boost photocatalytic CO2 reduction by improving photosensitization ability of Ru-based PSs. The study found that adjusting excited state population and lifetime can significantly enhance sensitizing ability, with Ru-3 showing over 17 times higher sensitizing ability than typical Ru-1.
Researchers at the University of Liverpool have built an intelligent mobile robot scientist capable of working 24/7 and making decisions autonomously. The robot has discovered a new catalyst six times more active than traditional ones, expanding its capabilities to tackle complex chemistry problems.
Rice University engineers found that boron nitride can destroy 99% of PFOA in four hours through light activation, outperforming previously reported catalysts. The discovery suggests the potential for using boron nitride as a tool to address PFAS pollution.
Researchers developed a highly effective and safe nanocrystal to combat deadly radiation, increasing survival rates and reducing oxidative stress by five times compared to individual components.
Researchers have developed a new method to convert gaseous hydrocarbons into complex molecules at room temperatures and low pressures using UV light and a decatungstate catalyst. This breakthrough simplifies processing, reduces material waste, and decreases pollution.