Articles tagged with Hydrogenation
Researchers found that controlling cobalt's oxidation state during electrolysis enables highly selective hydrogenation without relying on scarce precious metals. The optimized catalyst converted pyridine to piperidine with a yield of over 99% under ambient electrolysis conditions.
Researchers developed a novel oxide/dual-zeolite tandem catalyst that achieves over 40% BTX selectivity at 320 °C, offering a sustainable, non-petroleum route for chemical synthesis. This breakthrough provides crucial mechanistic insights into intermediate regulation during CO2 hydrogenation.
Researchers designed a Ce-Cu2O catalyst with dual active sites to regulate hydrogen utilization in electrochemical nitrate reduction reaction. The new mechanism enables cooperative L-H and E-R hydrogenation processes, improving ammonia selectivity under high current densities.
Researchers at the University of Rochester have developed a new way to harness the properties of tungsten carbide as a catalyst for producing valuable chemicals and fuels. The method, which involves carefully manipulating tungsten carbide particles at the nanoscale level, has shown promising results in reducing costs and increasing eff...
Researchers at AIMR discovered that Europium substitution in Cu2O catalysts allows for selective control of electrochemical CO2 reduction products. By leveraging the Eu3+/Eu2+ redox couple, they demonstrated how subtle changes in electronic structure can favor either C-C coupling or deep hydrogenation.
Researchers developed a technology that efficiently converts carbon dioxide into carbon monoxide by precisely controlling the interaction between rhodium and a zinc-based carrier. This breakthrough enables selective conversion at lower temperatures than previously possible, increasing production rates of useful industrial materials.
Researchers at Shanghai Jiao Tong University developed a novel hydrothermal CO2 methanation process using a non-precious Co@ZnO catalyst, achieving 100% conversion of CO2 to methane under optimized conditions. This innovation offers a sustainable and efficient solution for CO2 utilization in sustainable energy production.
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.
A team of researchers has developed a new electrochemical catalyst that enables efficient biomass conversion to produce fuels and chemicals. The Pd3Pt1 bimetallene catalyst reduces energy consumption by up to 1V, resulting in a significant decrease in energy consumption.
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.
Researchers at UC Davis created nanoislands with trapped platinum clusters, demonstrating improved hydrogenation catalytic activity and stability. The confinement of metal clusters on a tiny island of cerium oxide supports the production of stable catalysts for the chemical industry.
Scientists developed a method to densely populate and precisely position isolated Pt atoms on α-Fe nanoparticles, enhancing the intrinsic activity of hydrogenation reactions. This achievement resolves the activity-selectivity trade-off in hydrogenation reactions by fine-tuning the coordination environment of the active site.
Researchers at Yokohama National University have developed an efficient way to hydrogenate nitrogen-containing aromatic compounds, reducing the industry's environmental footprint. The new method uses water and renewable electricity as energy sources, achieving high efficiency and scalability.
Researchers discovered Co3O4 as the most effective cobalt oxide electrocatalyst for quinoline hydrogenation, achieving high conversion rates under ambient conditions. This study advances understanding of catalytic mechanisms in the process, which has significant implications for pharmaceutical and petrochemical industries.
Researchers at the University of Liverpool have achieved a significant milestone in converting carbon dioxide into valuable fuels and chemicals. They report a pioneering plasma-catalytic process for the hydrogenation of CO2 to methanol at room temperature and atmospheric pressure, achieving impressive selectivity rates.
Researchers developed a method to produce cobalt nanoparticles with controlled crystal phase, leading to higher selectivity and efficiency in hydrogenation reactions. The study showcases the potential of abundant cobalt as an alternative to noble metal catalysts.
Scientists at Tokyo Tech create innovative catalysts by encapsulating copper nanoparticles within hydrophobic porous silicate crystals, significantly enhancing catalytic activity and methanol production. The breakthrough paves the way for more efficient methanol synthesis from CO2.
Researchers from Osaka University developed an economical catalyst for a common chemical transformation, replacing rare metals with cheaper substitutes like nickel. The novel catalyst showed high activity, reusability, and high yields.
Researchers have discovered a way to make solar hydrogen production economically viable by co-producing high-value chemicals like methylsuccinic acid. By coupling the photoelectrochemical (PEC) process with hydrogenation, the cost of hydrogen drops significantly, making it competitive with fossil gas.
Researchers have developed a new method using co-thermal in-situ reduction of inorganic carbonates to produce high-purity CO with a selectivity of 95.8%, reducing carbon-dioxide emission and offering potential for green hydrogen production.
Researchers developed a stable and active catalyst for CO2 hydrogenation at room temperature, achieving high conversion efficiency comparable to state-of-the-art heterogeneous catalysts. The PdMo intermetallic catalyst was synthesized via a simple ammonolysis process and demonstrated robustness and durability in various conditions.
A team of researchers has discovered that a reaction sequence from the reverse Krebs cycle can take place without enzymes under metal or meteorite catalysis. The study suggests that simple organic molecules existed on early Earth, even before life as we know it developed.
Researchers from Osaka University have developed a novel method for hydrogen purification using liquid organic hydrogen carriers, achieving high efficiency and purity. This breakthrough could increase the mid- and long-term prospects of hydrogen as a sustainable energy source.
Researchers from Tokyo Tech investigated nonthermal plasma-promoted CO2 hydrogenation on Pd2Ga/SiO2 catalysts, revealing a more than two-fold increase in CO2 conversion compared to thermal methods. The study provides mechanistic insights into the NTP-activated species and metallic catalyst interaction.
Scientists from the University of Tsukuba have experimentally measured hydrogenation of copper-adsorbed formate, a crucial step in converting carbon dioxide into methanol fuel. The study found that at temperatures above 200K, atomic hydrogen can catalyze the reaction, producing a product that decomposes back into gaseous formaldehyde.
Researchers at TUM have developed a new process for producing ethanol from waste wood and hydrogen, resulting in a lower cost compared to traditional methods. The process has the potential to reduce greenhouse gas emissions by 75% and can be used as a low-carbon fuel alternative.
Researchers develop highly efficient electrocatalytic hydrogenation of acetylene to ethylene under room temperature, using water as a hydrogen source and reducing energy consumption. The process achieves high Faradaic efficiency and selective ethylene production via electron-coupled proton transfer pathways.
Researchers have discovered that lattice softness is the dominant factor affecting a metal's ability to hydrogenate, enabling the expedited development of hydrogen storage materials. This parameter can also be used to evaluate the hydrogenation ability of intermetallic compounds.
Rangarajan aims to develop a novel computational framework to understand the molecular level of catalytic transfer hydrogenation, a promising approach for safe and cost-effective biomass conversion. The technique could lead to more compact, modular processes with near-ambient temperatures and pressures.
Researchers at NUS have developed a method to increase the rate of ethylene hydrogenation by more than five times compared to typical industrial rates using oscillating electric potentials on commercial catalysts.
Osaka University researchers report a stable and reusable nickel phosphide nanoalloy catalyst that achieves high activity and selectivity in the selective hydrogenation of maltose to maltitol. The catalyst's cooperation with its support enhances performance, allowing for efficient production of this sugar alcohol.
Researchers develop a thermally stable atomically dispersed Ir/MoC catalyst with an unusually high metal loading of 4 wt%, exhibiting remarkable reactivity, selectivity, and stability. The catalyst achieves high metal-normalized activity and mass-specific activity through the presence of isolated Ir atoms.
Researchers have developed a new catalyst for the low-temperature hydrogenation of CO2 to methanol with high activity and selectivity. The sulfur vacancy-rich few-layered MoS2 catalyst achieves 94.3% methanol selectivity at 180°C, outperforming commercial catalysts.
Researchers at Nagoya University have discovered a way to harness energy from living cells by modifying highly functionalized PCAs into biorenewable molecules. The new catalyst enables the selective hydrogenation and dehydration of Krebs cycle metabolites, producing compounds with valuable applications in plastics and polymers.
Researchers demonstrate a solvent-assisted ligand exchange-hydrogen reduction strategy for selective encapsulation of ultrafine metal nanoparticles within the shallow layers of MOF. This approach reduces mass transfer resistance and enhances metal dispersion, promoting highly efficient hydrogenation reactions.
Researchers have designed efficient indium oxide catalysts for converting CO2 into methanol with high activity and selectivity. Theoretical modeling identified a specific facet of the catalyst as most favorable for methanol synthesis, which was confirmed by experimental results.
Researchers at Osaka University have synthesized an easy-to-handle nano-cobalt phosphide catalyst that achieves efficient hydrogenation of nitriles to primary amines. The catalyst combines efficiency, cost-effectiveness, ease of handling, and reusability, offering numerous advantages in terms of cost and safety.
A new photocatalytic water-splitting strategy has been developed to hydrogenate aryl chlorides in a sustainable manner. The approach utilizes water as a safe and readily available hydrogen donor, replacing flammable gases and reducing risks associated with conventional dechlorination methods.
Researchers at City College of New York developed a hydrogenation process that bypasses external hydrogen gas sources, reducing safety risks and costs. The new method has potential applications in undergraduate chemistry labs and medicinal fields.
A recent study found that the autocatalysis of water enhances the formation of COOH intermediate through proton transfer, accelerating CO generation while hindering methanol synthesis. The research also revealed that high initial partial pressure of water inhibits CO2 conversion due to excessive OH* coverage.
Pitt researcher Dr. James McKone investigates using renewable electricity as energy source for industrial hydrogenation reactions, which are crucial for producing fuels and fertilizers.
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.
Chemists at the University of Münster have developed a new synthesis method for producing fluorinated piperidines, a breakthrough that could lead to more efficient pharmaceutical production. The new method involves two consecutive steps in one vessel and uses easily accessible starting molecules.
Researchers have found that copper's electron structure can be altered, enabling it to act as a noble metal in catalyzing the preliminary hydrogenation of dimethyl oxalate into methyl glycolate with high selectivity. The 'frozen' state of copper at zero valence is crucial for this process.
Researchers found that smaller Ru particles increase the TOF of the reaction, while maintaining selectivity towards GVL. The smallest metal particle size (1.2 nm) showed high activity at both room and elevated temperatures.
The study reveals that the carbon-hydrogen bonds in the molecule play a key role in its volatile behavior. The optimal conditions for removal of excess hydrogen are below 175 degrees Fahrenheit, done in a good vacuum. This discovery can help chemists identify ideal operating temperatures and environments.
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 Osaka University have developed a new catalyst for amide hydrogenation that operates under mild conditions, allowing for the efficient conversion of amides to amines. The catalyst enables sustainable pharmaceutical production with minimal by-products and high selectivity.
Okinawa Institute of Science and Technology researchers created efficient catalysts based on inexpensive and abundant manganese to convert carbon dioxide into formic acid and formamide, widely used in industry. The new catalyst can perform over 6,000 turnovers and is stable in air, opening possibilities for other CO2 conversions.
Researchers at Argonne National Laboratory have developed a vanadium catalyst that enhances the hydrogenation process, previously dominated by expensive precious metals. The breakthrough involves synthesizing vanadium in a unique configuration, demonstrating its catalytic activity.
Researchers at Purdue University have developed a hydrogenation process that uses high-voltage atmospheric cold plasma (HVACP) to solidify soybean oil for food processing without creating trans fats. The new process is more efficient and environmentally friendly, with the potential to produce safe plant oils on a large scale.
Researchers at IBS discovered that hydrogenation of single-layer graphene proceeds rapidly over the entire surface, while few-layer graphene reacts slowly from the edges. Hydrogenation changes graphene's optical and electric properties. The study also found that defects or edges are necessary for the reaction to occur.
Researchers discovered a new class of catalysts that enables ammonia synthesis under mild conditions, with LiH playing a crucial role. The discovery breaks the linear scaling relations between activation energy and binding strength, allowing for unprecedented high NH3 synthesis activities at low temperatures.
Researchers at TUM and Georgia Institute of Technology found that the size of platinum catalyst particles significantly affects reactivity, with clusters having fewer atoms showing lower activity. The discovery could lead to more efficient production of margarine and other chemicals, as well as new materials.
Researchers from McGill University have developed a method to use iron nanoparticles as catalysts in water-ethanol mixtures, overcoming the limitation of rusting in the presence of oxygen or water. This innovation enables the possibility of replacing platinum-series metals for hydrogenation under industrial conditions.
Researchers at Tufts University discovered that single atoms of palladium can catalyze industrially important chemical reactions, including the hydrogenation of acetylene. The findings offer significant economic and environmental benefits by reducing costs and waste associated with traditional catalysts.
Researchers at UC Riverside have designed a catalyst that allows for the production of partially hydrogenated oils while minimizing the formation of trans fats. By controlling the shape of platinum particles, they achieved higher selectivity and reduced the creation of harmful trans fats.
Chemists at Ohio State University have successfully created synthetic molecules that can change shape to suit a particular chemical reaction, similar to natural enzymes. This breakthrough could lead to the development of new catalysts for the pharmaceutical and chemical industries.
Researchers at Iowa State University successfully developed a new soybean oil with elevated oleic acid content, eliminating the need for hydrogenation and reducing trans fats. The oil has been adopted by the food industry for various products, including cereal, energy bars, and non-dairy creamers.
Researchers from Utrecht have discovered that carbon nanofibres can effectively replace active carbon as a carrier for catalysts, enhancing the efficiency of hydrogenation reactions. The new material allows for the reuse of catalysts and has shown promise in the industrial-scale production of compounds like cinnamon alcohol.