Articles tagged with Catalysis
A new catalyst converts methane into polymers at room temperature and atmospheric pressure, making it easier to deploy at sites of methane production. The catalyst also enables the creation of sealants to heal cracks in natural gas pipes, potentially reducing methane leakage.
Researchers from Institute of Science Tokyo successfully developed a multi-element perovskite catalyst that selectively oxidizes light alkanes to alcohols with high yield and selectivity. The breakthrough catalyst operates under mild conditions and exhibits excellent stability and reusability.
Julian West, assistant professor of chemistry at Rice, recognized for harnessing free radical intermediates through inner sphere photocatalysis. His work holds significant implications for organic synthesis and developing next-generation therapeutics and materials.
Researchers found that COFs' catalytic activity comes from oxidic nanoparticles formed when cobalt ions detach, not the framework itself. The nanoparticles provide a suitable reaction environment and hold the catalysts in place, enabling efficient catalysis even under harsh conditions.
The São Paulo Advanced School on Disordered Systems will bring together students and researchers in complexity, bio-inspired applications, information science, and quantum materials. The school, supported by FAPESP, aims to establish a common forum for learning and discussing theories of general interest.
Researchers developed Virtual Ligand-Assisted Optimization to enhance ligand design and effectiveness in chemical reactions. The approach analyzes ligands through computer simulations, allowing for quick testing of different designs.
Researchers at Texas A&M University have developed a method to break down condensation polymers in plastics using solvents and liquid organic hydrogen carriers, producing aromatic compounds that can be used as fuels. This breakthrough has potential implications for the sustainability of the chemical industry and reducing global warming.
Scientists have discovered that adding carbon to metal nanoparticles makes them 200 times more active, which could lead to significant cost savings and improved efficiency in industrial processes. The discovery was made possible by precise measurements and simulations of the interaction between metal nanoparticles and a carbon substrate.
Chemists at Emory University and Caltech have developed a revolutionary strategy for functionalizing carbon-hydrogen bonds, transforming low-cost materials into complex building blocks of organic chemistry. The breakthrough enables the synthesis of complex natural molecules with antimicrobial properties.
A team of scientists at Johannes Gutenberg University Mainz has developed an electrocatalytic conversion technique that converts carbon dioxide into ethanol. The cobalt-copper tandem system achieves selective conversion with an 80% yield, opening up a sustainable method for chemical applications and food conservation.
A new study published in npj Complexity found that the 2020 U.S. election drew online hate communities closer together, inciting new hate content around immigration, ethnicity, and antisemitism. The research team developed an 'online telescope' to map the online hate universe at unprecedented scale and resolution.
Researchers have developed a highly efficient alkaline membrane electrolyser that approaches the performance of established PEM electrolysers. The use of inexpensive nickel compounds replaces costly and rare iridium, leading to significant advancements in understanding fundamental catalysis mechanisms.
Researchers at Tohoku University developed a synthesis method to control the surface structure of small metal particles, improving their catalytic activity for hydrogen evolution. The new approach, combining gold and platinum, achieves higher catalytic activity than conventional catalysts.
Researchers at the University of Münster have developed a new method for synthesizing heteroatom-substituted 3D molecules, which are more stable than related flat rings. The innovative structures show promise as substitutes in drug molecules, offering new possibilities for drug development.
Chemists at Brookhaven Lab develop new theoretical framework to accurately predict catalyst behavior, revealing how conditions like temperature and pressure can change a catalyst's structure, efficiency, and products. The study highlights the significant impact of reaction environment on catalytic performance.
Researchers at Tohoku University have developed a novel catalyst to control the atomic arrangement of carbon nanotubes, achieving ultra-high purity and precise chirality. The breakthrough could lead to significant advancements in semiconductor device manufacturing.
Researchers at Nagoya University developed an innovative method to synthesize amorphous nanosheets from challenging metal oxides and oxyhydroxides. The process uses surfactants to create ultrathin layers with numerous defects, making them excellent active sites for catalytic reactions.
Combining visible light with electrochemistry improves CO2 conversion rates and selectivity, enabling the production of valuable products such as carbon monoxide and hydrogen. The study's findings have significant implications for catalysis research and industrial applications.
A new Fe-N-C catalyst using dual nitrogen sources enhances the distribution density of active catalytic sites, increasing its overall activity and stability in oxygen reduction reaction (ORR). The catalyst demonstrates superior performance compared to commercial Pt/C catalysts, with improved durability and resistance to methanol.
Researchers deciphered the role of manganese in cobalt-manganese catalysts, which have a high activity and stability over time. The catalysts' surface transforms during the reaction, with manganese dissolving and redepositing, leading to improved performance.
Researchers have developed a catalytic approach to enhance the compatibility between carbonate electrolytes and sulfur cathodes in lithium-sulfur batteries. The use of dual-nitrogen and oxygen-containing groups on a porous carbon host stabilizes polysulfides, preventing side reactions with the electrolytes.
Hokkaido University researchers have developed a novel method to activate alkanes, making it easier to convert these building blocks into valuable compounds. The new technique utilizes confined chiral Brønsted acids, improving efficiency and selectivity in producing desired products.
Recent research highlights microwave-induced synthesis as a transformative potential in drug discovery and development. This efficient technique enables rapid preparation of diverse N-heterocycles, including biologically active molecules such as pyrimidines, thiazoles, and quinolines.
Researchers from Ruhr University Bochum have gained new insights into the operation of an iron catalyst that can split ammonia into nitrogen and hydrogen. The team's findings enable more efficient catalysts for ammonia decomposition, paving the way for a promising energy carrier transport solution.
For the first time, researchers have witnessed nanosized water bubbles forming in real time using a novel method that enables atomic precision. The breakthrough discovery has significant implications for practical applications, such as rapid water generation in deep space environments without extreme conditions.
Researchers at Waseda University developed a novel process for converting ammonia into green hydrogen gas at low temperatures using an electric field and Ru/CeO2 catalyst. The study successfully achieved 100% conversion rate at 398K, surpassing the equilibrium conversion rate.
A self-supported film catalyst with CNTs and Ni-Ni(OH)2 heterostructure has been designed for activated hydrogen evolution reaction (HER), exhibiting excellent performance in alkaline solution. The catalyst showed outstanding catalytic properties, including a low onset overpotential of 0 mV and steady overpotentials.
Researchers at RMIT University have developed a low-carbon approach to producing ammonia, which is used in fertilizers and as a carrier for hydrogen. The new method uses liquid metal catalysts, reducing energy consumption by 20% and carbon emissions by 98%. This could significantly reduce the environmental impact of agriculture and sup...
A new visible-light antenna ligand enhances samarium-catalyzed reactions, reducing Sm usage by up to 98% and enabling mild conditions. The study provides valuable insights for developing efficient Sm-based catalysts.
The Rice-led MURI project aims to develop innovative single-atom reactor systems and analyze various chemical processes of strategic importance to the DOD. The researchers, led by Naomi Halas, seek to improve energy efficiency and reduce protocol intensity in chemical reactions.
Juan Jimenez, a Goldhaber postdoctoral fellow at Brookhaven National Laboratory, has been recognized as a Blavatnik Awards Finalist for his work on developing new catalysts to convert greenhouse gases into industrially useful materials. His research focuses on minimizing hazardous byproducts and using solvent-free processes.
Researchers from Tokyo Metropolitan University developed a new electrochemical cell that converts bicarbonate solution into formate ions with high selectivity and efficiency. The cell boasts unrivalled performances rivaling energy-hungry gas-fed methods, promising to have a significant impact on climate change technology.
A highly active and selective molecular catalyst and electrified membrane have been developed to treat water contaminated with trichloroethylene. The catalyst, composed of cobalt phthalocyanine molecules mounted on multiwalled carbon nanotubes, breaks down TCE at record rates with nearly 100% Faradaic efficiency.
Researchers developed a self-assembling catalyst to facilitate the reaction between alkenes and alcohols, producing ethers with improved efficiency, generality, and selectivity. The catalyst's design was inspired by enzymes, which can position reaction partners for optimal reactivity.
Researchers at Tsinghua University Press have developed effective synthesis strategies using carbon-based catalysts for converting CO2 into valuable chemicals and fuels. The team has designed various catalytic materials, including carburized iridium oxide nanorods, to enhance the activity of catalysts and selectivity of formate.
A review article discusses the application of operando ATR-SEIRAS in studying electrochemical CO2 reduction reaction mechanisms and surface-enhanced infrared spectroscopy. The technique helps understand reaction intermediates, catalyst performance, and local pH at the electrode.
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.
A novel method for the selective chemical recycling of PET has been developed, allowing for the recovery of polyester from textile waste. The method uses alcohols and an inexpensive iron trichloride catalyst to yield diethyl terephthalate and ethylene glycol with high selectivity.
The study reveals that conformational change of Fe(IV)=O species and substrate coordination are key to the selective C-N coupling. The aziridination reaction involves rotation of the side-chain, causing steric hindrance that inhibits it. In contrast, hydroxylation has minor steric effects.
Researchers found that plasmonic excitation of Cu nanowires dramatically enhances the nitrate reduction reaction (NO3RR) performance. The current density is enhanced by a factor of 3 under simulated solar irradiation, and the faradaic efficiency reaches nearly 100%.
A new chemical process can vaporize plastics, reducing waste and creating hydrocarbon building blocks for new plastics. The catalytic process efficiently degrades a mix of post-consumer plastic waste, bringing closer a circular economy for many throwaway plastics.
Researchers have engineered a catalyst that converts methane into methanol in a single step, reducing the need for multiple reactions and increasing efficiency. The new process has potential applications for local deployment of stranded natural gas reserves.
The African American Transplant Access Program aims to mitigate disparities in solid organ transplantation, while a physician-created platform speeds clinical decision-making. NEJM Catalyst also explores quality and safety improvement through longitudinal care management for diabetes and hypertension.
Researchers developed a one-pot process to transform aromatic ketones into esters, simplifying the reaction process, reducing reaction times, and minimizing purification steps. The method enables seven different chemical transformations and has shown notable stability and reusability, making it scalable for industrial applications.
Scientists investigate SSZ-13 zeolite's role in DME carbonylation, revealing key factors affecting MA selectivity. Metal loading and spatial confinement play crucial roles in inhibiting side reactions and improving main reaction selectivity.
A team of scientists from Indian Institute of Science developed a surfactant from cashew nut shell liquid to catalyse industrially relevant reactions in water, leading to 80% higher product yields and replacing expensive catalysts. The study uses micellar catalysis to mimic biological systems.
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 an effective catalyst that significantly enhances ammonia conversion efficiency, offering potential for wastewater treatment and hydrogen production. The catalyst's design allows it to operate at lower voltages, producing less harmful substances like nitrite and nitrate.
A research team at Iowa State University has developed artificial intelligence technology that can model and understand complex chemical reactions, including those involved in ammonia production. The technology uses reinforcement learning to identify the optimal reaction pathway, promising to reduce production costs and emissions.
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.
Research from the University of Illinois highlights the potential of organic nanozymes for broader applications beyond traditional uses of inorganic nanozymes. The development of sustainable, environmentally friendly materials offers a promising solution for various industries.
Researchers at the University of Illinois developed an eco-friendly method to precisely mix fluorine into olefins using natural enzymes and light, offering a more efficient strategy for creating high-value chemicals with potential applications in agriculture, pharmaceuticals, renewable fuels and more.
A rhodium-catalyzed [2+2+1] cycloaddition reaction expands the possibilities for creating complex organic molecules. The researchers achieved high enantiomeric excess values of 94-99% using phosphine ligands, enabling the synthesis of diverse compounds.
A new method to measure continuous light spectrum improves thermal imaging accuracy without direct contact. It eliminates wavelength and temperature dependence, revealing higher surface temperatures of photothermal catalysts than previous methods.
A polyaniline catalyst coated in cobalt oxide nanoparticles has been developed to produce acetate through carbon dioxide electroreduction. The synergistic nature of the polyaniline and cobalt oxide combination enhances the transformation, resulting in improved crystallization and uniform deposits.
Researchers at USTC reveal 'volcano-type' relationship between metal loading and OER activity in Ir single-atom catalysts, with optimal performance found at moderate loadings. The study provides theoretical guidance for designing more efficient single-atom catalysts.
Researchers from USTC have created a cobalt-catalyzed enantioselective hydroalkylation process that enables the efficient construction of chiral tertiary carbon centers. This breakthrough solves the problem of uncontrollable stereochemistry in heteroatom-free alkene hydroalkylation reactions.
Researchers at Argonne National Laboratory have developed a faster and more energy-efficient way to manufacture propylene, a key chemical in producing polypropylene. The new process uses zirconium combined with silicon nitride, yielding higher catalytic activity and lower operating temperatures.
Researchers at USTC create a novel 'Janus' dual-atom catalyst with Fe and Co atoms coordinated synergistically through an N-O bridge, showing exceptional performance in ORR and OER. The strong electronic interaction between Fe-N3 and Co-O3 units optimizes adsorption and desorption processes, accelerating reaction kinetics.
Research progress on VOC elimination via thermal catalysis or photothermal catalysis has been reported, including eliminating single-component and multi-component VOCs. The development of novel catalysts with improved stability is crucial for broad-spectrum control of VOC pollution.