Articles tagged with Catalysis
Researchers have developed a more efficient method for producing green ammonia using artificial intelligence and machine learning. The new process achieves a sevenfold improvement in production rate while being nearly 100% efficient, making it a viable alternative to traditional methods.
The European Research Council has awarded ERC Advanced grants to Inga Kamp, Wouter Roos, and Syuzanna Harutyunyan from the University of Groningen for their innovative research projects. Kamp's project focuses on deciphering rocky planet building blocks using the James Webb Space Telescope, while Roos investigates RNA-containing viruse...
Scientists have developed a holistic understanding of light-driven hydrogen gas production using a nanocrystal-enzyme complex as catalyst. This breakthrough framework can be applied to optimize future light-driven chemical reactions.
Researchers developed a novel MoS2-confined Rh-Fe dual-site catalyst for the direct conversion of methane to acetic acid, achieving an unprecedented CH3COOH selectivity of 90.3% at room temperature. The catalyst's unique structure effectively balances C-H activation and C-C coupling, addressing long-standing challenges in this process.
Researchers at Tohoku University have developed a novel oxidation process using sonicated carbon nanotubes to remove industrial and municipal pollutants from contaminated water. The nonradical pathway achieves unprecedented removal rates within five minutes, targeting distributed water sources.
A study combines DFT and machine learning to analyze a wide range of epoxides in CO₂ cycloaddition, identifying key molecular descriptors and predicting reactivity trends. The research aims to develop predictive catalyst and substrate design for optimized CO₂ fixation, contributing to greener chemical processes.
Researchers at Tohoku University developed a novel strategy to modulate spin states of single-atom catalysts using external magnetic fields. This approach improves electrocatalytic performance by reducing activation energy and increasing reaction rates.
Researchers have developed metal-based Janus nanostructures that boost CO2 reduction via tandem electrocatalysis. These structures exhibit unique properties and mechanisms, enabling the generation of single-carbon and multi-carbon products.
Researchers have developed a method to convert carbon dioxide into methanol, a versatile compound used in fuels and plastics. The process involves hydrogenating CO2 with the help of catalysts, which can produce e-fuels that are sustainable alternatives to traditional fossil fuels.
Researchers at HZB have developed MXene-based catalysts that significantly enhance the oxygen evolution reaction in electrolysis, a crucial step for producing green hydrogen. The study found that embedding catalytically active particles into the flaky structure of MXenes increases the reaction's efficiency.
Researchers developed a theoretical model describing metal cluster migration and aggregation within individual zeolites, revealing key factors affecting catalyst stability. The model shows that increasing zeolite support properties can achieve 'migration-aggregation-self locking' of Pt species, creating ultra-stable catalysts.
The study reveals that monodispersed ZnOx species anchored on ZnCr2O4 spinel surface are key active sites for syngas conversion to light olefins. The catalyst achieved high catalytic performance with 64% CO conversion and 75% selectivity among total hydrocarbons.
Researchers developed a low-cost nanocomposite with excellent electrochemical performance for supercapacitors and strong catalytic efficiency in degrading industrial pollutants. The material has promising dual functionality for energy storage and environmental remediation.
A new cobaltosilicate zeolite catalyst has been developed for propane dehydrogenation, achieving high propylene productivity and long-time stability. The catalyst's flexible framework lowers dehydrogenation barriers through entropic effects, while non-bonding adsorption of propylene enables rapid product desorption.
A team from The University of Osaka has developed an efficient non-precious metal catalyst for converting biomass-derived furfural to tetrahydrofurfuryl compounds, achieving high yields under mild conditions.
Researchers have developed a novel gold-catalyzed approach to engineer atomically rough surfaces on Au-based binary alloys, significantly enhancing the electrocatalytic performance for ethanol oxidation reaction. The ARSs provide abundant low-coordinated atoms with lower energy barriers for reactant activation.
A new MoOx-Ru/C bimetallic catalyst has been developed for the efficient hydrogenolysis of esters to alkanes, exhibiting high conversion rates and selectivity. The catalyst's unique synergistic effect between Ru and MoOx species promotes the conversion of esters into alkanes without carbon loss.
Researchers developed a simple, economical and environmentally friendly purification method for mullite-type bismuth ferrite, improving its efficiency in producing green hydrogen. The process uses light and glycerol to eliminate unwanted compounds, resulting in high-purity material suitable for photoelectrochemical reactions.
Researchers from Institute of Science Tokyo developed a novel catalyst that efficiently produces sulfones at low temperatures, achieving high selectivity and reducing precious metal consumption. The new SrMn₁₋xRu_xO₃ catalyst offers significant advantages over conventional systems, making it suitable for various industries.
Researchers have discovered a new enzyme called CelOCE that can cleave cellulose using an unprecedented mechanism. This discovery has the potential to significantly increase the production of second-generation ethanol from agro-industrial waste, enabling the large-scale production of biofuels.
Researchers developed iron carbide catalysts for deoxygenative C-C coupling of benzyl alcohols, producing bibenzyls and leveraging the Fischer-Tropsch synthesis process. The system promotes radical reaction pathways and accelerates oxygen removal on the catalyst surface.
A team of researchers has outlined a new roadmap for harnessing heterogeneous catalysis to destroy PFAS, which can contaminate water supplies worldwide. The proposed sequential treatment train uses tailored catalytic steps to break down complex PFAS mixtures into harmless by-products.
Researchers propose a novel approach to reduce carbon emissions in cement manufacturing by leveraging iron naturally present in cement raw materials. The method enables the co-thermal conversion of CaCO₃ with CH₄ under a methane atmosphere, resulting in high-value syngas as a byproduct and significantly reducing carbon footprint.
A research team developed a novel strategy to balance high catalytic activity and durability under industrial-level conditions. They constructed a MOF@POM superstructure that undergoes an in-situ transformation into a single-layer CoFe hydroxide catalyst, exhibiting exceptional performance in alkaline electrolytes.
Researchers synthesized three porphyrin-based COF materials with tunable structural distortion, revealing correlations between linker distortion and material properties. The NN-Por-COF photocatalyst exhibits exceptional CO2 reduction performance under simulated industrial flue gas conditions.
A new ZnxZrO catalyst selectively cleaves ethane's C–H bonds while efficiently activating CO2, enabling an eco-friendly ethylene production process. This breakthrough enhances carbon neutrality initiatives and establishes sustainable chemical production systems.
A new study emphasizes the importance of pushing metal site design limits to optimize hydrogen evolution reaction in single atom catalysts. Researchers found that hydrogen binding energy calculation can serve as a good predictor of activity, and neighboring nitrogen atoms can host catalytic activity to negate poisoning effects.
A team of researchers developed a water-catalyzed PDH reaction route using a copper single-atom catalyst to achieve highly efficient propane-to-propylene conversion under mild conditions. The reaction was driven by photo-thermo catalysis and could be directly driven by sunlight.
Researchers created an anchoring-borrowing strategy to form artful single-atom catalysts, overcoming traditional oxidative addition steps in cross-coupling reactions. The new catalysts achieve high yields, excellent stability, and set a benchmark for turnover numbers.
A Northwestern University-led team directly observes a catalytic event in real time, discovering short-lived intermediate molecules and a previously hidden reaction pathway. This breakthrough enables scientists to understand how catalysts work, potentially leading to more efficient and sustainable chemical processes.
A research team has discovered that protein misfolding is a major cause of efficiency problems when using split inteins to produce proteins. By introducing specific mutations to the intein fragment, they were able to suppress aggregation and increase productivity.
Researchers engineered conjugation of donor and acceptor units in covalent organic frameworks to enhance photocatalytic H2O2 production. USTB-46 achieved a high yield of 8274 mmol g−1 h−1, attributed to optimized light absorption, thermodynamic catalytic activity, and compatible D-A units.
RMIT University's PYROCO technology converts treated sewage into a carbon-rich product called biochar, which acts as a catalyst to produce phenol-rich bio-oil. The technology has been applied to several circular economy applications and offers a sustainable way to reduce carbon dioxide emissions.
A new probing technique allows researchers to observe the surface of iron reacting with oxygen in real time, revealing key factors that influence catalyst performance. This breakthrough could lead to more efficient development of new materials and systems.
Researchers have developed a method to prepare copper single atoms using a nano-constrained environment, resulting in improved catalytic performance. The new catalyst exhibits high activity and selectivity in CO2 cycloaddition reactions.
A team of researchers from Oregon State University and China has improved the chemical reaction that underpins a range of commercial and industrial goods. They created single-atom catalysts that demonstrate excellent catalytic activities, leading to record high activities and excellent stabilities in hydrogenation reactions.
Scientists have developed a method to produce propylene through nonoxidative propane dehydrogenation (PDH) using light-driven nanoparticles. This process could reduce energy demands and emissions in the chemical industry, paving the way for a more sustainable future.
Researchers developed a new viscoelastic model of enzymes, elucidating the intertwined effects of elastic forces and friction forces on enzyme function. This breakthrough allows proteins to be perceived as soft robots or programmable active matter, revolutionizing our understanding of enzymatic catalysis.
Researchers develop a novel 'zeolite blending' method to synthesize CON-type zeolites with unprecedentedly high aluminum content. This approach enables precise control over Al content, opening possibilities for catalyst development in various industrial applications.
Researchers at University of Nottingham use transmission electron microscopy to observe real-time growth and contraction of Palladium nanoparticles. The study reveals a unique cyclic process where nanoparticles grow, dissolve, and re-grow, potentially leading to the development of new efficient catalysts.
Scientists have developed a novel synthesis method for trivalent phosphorus compounds, leveraging an adduct-catalyzed tandem electro-thermal approach to produce high-yielding organophosphorus compounds with improved efficiency and selectivity. The approach also enables the in-situ consumption of renewable energy sources.
Researchers developed a strategy to regulate hydrogen bond networks at electrolyte-electrode interfaces, accelerating proton transfer in CO2 reduction reactions. The approach involves introducing extra catalytic centers, such as cubic phase molybdenum carbide, to enhance water dissociation and facilitate proton generation.
Researchers developed a dual bio-/photo-catalytic system for achieving enantioselective hydroamination of enamides, producing diverse enantioenriched vicinal diamines. The system utilizes green light to initiate nitrogen-centered radical reactions, achieving high yields and enantiomeric excess.
Researchers from PolyU have discovered the precise location of aluminium atoms in zeolite frameworks, enabling the design of more efficient and stable catalysts. This breakthrough has wide-reaching implications for industries such as renewable energy and pollution control.
Researchers discovered that tetrahedral Co²⁺ is preferentially incorporated into the lattice in early stages of Co(OH)₂ formation. The retention of tetrahedral Co²⁺ is linked to effective OH⁻ concentration, paving the way for optimized synthesis methods and enhanced material properties.
Researchers have developed cost-effective and efficient water-splitting catalysts using cobalt and tungsten, which surprisingly increase in performance over time. The unique self-optimization process involves changes in the chemical nature of the catalyzing oxide, leading to improved activity and reduced overpotentials.
Researchers at Northwestern University have developed a solvent-free process to break down polyethylene terephthalate (PET) plastics using a molybdenum catalyst and ambient air moisture. The process converts PET into monomers, the building blocks for plastics, paving the way for more sustainable plastic recycling.
Researchers at Yale University have discovered a new method to convert carbon dioxide (CO2) into formate, a chemical compound used in preservatives and pesticides. The breakthrough could lead to the development of alternative fuels and sustainable products, addressing environmental concerns.
Researchers at Tohoku University found that incorporating gadolinium into iron-doped nickel oxide markedly enhances oxygen evolution reaction activity. Gd-doping reduces theoretical overpotentials and demonstrates favorable kinematics, leading to remarkable long-term stability and robust performance in water electrolysis.
A POSTECH research team has developed a new catalyst using aluminum, improving the performance of hydrogen production in alkaline water electrolysis by approximately 50%. The aluminum catalyst maintained high current density and excellent stability, making it suitable for large-scale hydrogen production.
Researchers at TU Wien have developed a process to recover nickel from spent batteries and convert it into a nanocatalyst that reduces CO2 into valuable methane. This innovation has the potential to reduce waste and provide a sustainable fuel source.
Researchers at IISc have developed an onsite production strategy for hydrogen peroxide using a zinc-air battery. The process generates H2O2 while degrading toxic dyes, making it a low-cost and highly energy-efficient method. This approach has the potential to be scalable and can be used in various applications.
Scientists have uncovered the molecular structure of Mycoplasma mobile's twin motors that power its gliding ability, using cryo-electron microscopy. The complex structure reveals a new mechanism by which energy from ATP hydrolysis is converted into motility.
A study by the Advanced Institute for Materials Research found that tin monoxide (SnO) electrocatalysts can produce both formic acid and carbon monoxide in significant amounts. The research team identified key structural changes that influence product distribution, providing insights into optimizing electrocatalyst performance.
Researchers from NUS have pioneered a new catalytic transformation that converts epoxides into fluorinated oxetanes, a coveted class of drug molecules. The discovery potentially opens the door to new medicines and offers a reliable route to incorporate these motifs into the design of novel small-molecule therapeutics.
The newly synthesized monolayer Ti3C2Tx transforms photocatalytic bioaerosol disinfection at the catalyst-cell interface. The material achieves a sterilization efficiency of 3.3 log in just 12.8 seconds, far exceeding traditional TiO2.
Researchers at HZB and HU Berlin have discovered a high-spin manganese centre, crucial for molecular oxygen formation in natural photosynthesis. The discovery, made possible by BESSY II's unique experimental capabilities, sheds light on the complex process of photosynthesis.
Research reveals oxygen vacancies in ZrO2 catalysts increase catalytic performance in propane dehydrogenation. The vacancies create a localized electronic state that promotes the activation of C-H bonds in propane.
Researchers have made progress in understanding the dynamics of Cu-based catalysts in electrochemical CO2 reduction. The study highlights the importance of structural factors and cation effects on catalytic performance.
Researchers at Tohoku University developed a novel method to accelerate the development of single-atom catalysts (SACs) for robust and efficient water purification. Using data-driven predictions, they identified an optimized Fe-SAC with high decontamination performance, breaking down pollutants in water.