Articles tagged with Catalysis
A novel design strategy has been proposed to efficiently synthesize methanol from CO2, decoupling active sites through a strong metal-support interaction. This approach enables a significant increase in methanol yield compared to conventional catalysts.
Researchers at Tohoku University have developed a comprehensive digital materials ecosystem that integrates AI tools to streamline materials design, enabling faster and more accurate discovery of new materials. The ecosystem uses databases, AI, and scientific workflows to predict material properties and optimize design processes.
A team of researchers achieved efficient bicarbonate-mediated integrated carbon dioxide capture and electrolysis to produce CO, reducing energy consumption and improving process performance. The new process couples CO2 capture with electrocatalytic conversion, enabling a closed-loop cycle.
Researchers visualized activity across a platinum catalyst with unprecedented detail, revealing coordinated, interconnected systems. Individual crystal grains specialize in different chemical steps, and cooperative electron flows enhance overall reaction efficiency.
The study introduces a conformational isomer strategy to precisely tune nitrogen atom positions in covalent organic frameworks, enhancing photocatalytic hydrogen evolution performance. The imine-linked COF-I2 exhibits superior performance due to the synergistic effect between Pt clusters and single atoms.
Researchers developed a method to convert waste plastic mulch film into useful chemicals through catalytic pyrolysis. The study found that temperature controlled the product distribution and long-term stability of the catalyst, with optimal conditions producing valuable olefins and easily regenerable tar.
Researchers at Tohoku University discovered that subtle variations in coordination symmetry significantly alter reaction energetics and product selectivity in single-atom electrocatalysts. Asymmetric Co-N3 sites exhibited enhanced overall ORR activity, while lower-symmetry Co-N5 centers achieved the highest selectivity toward hydrogen ...
A team of environmental chemists developed a new catalyst made from discarded coffee grounds that efficiently removes hydrogen sulfide, a highly toxic industrial gas, while producing elemental sulfur. The material was produced through a two-step process and demonstrated outstanding performance during laboratory testing.
Researchers developed a nickel-enriched biochar from marine microalgae that can detect hydrogen peroxide at low concentrations, with fast response times. The sensor's stability and sensitivity are improved by the uniform distribution of catalytic sites.
Researchers review how torrefaction converts biomass into versatile precursor for advanced functional materials. The process improves durability, electrical properties, and surface chemistry, enabling specific technological uses.
Wachs was recognized for his work on mixed oxide catalysts that guide the rational design of solid catalysts for air pollution remediation, sustainable energy, fuels, chemicals, and pharmaceuticals. His election to the NAE honors his contributions to chemical engineering and the modern field of operando molecular spectroscopy.
Researchers at Tohoku University successfully synthesized π-electron compounds with a pentagonal silicon framework, 'pentasilacyclopentadienide', and elucidated their molecular structures. The new compound has delocalized π-electrons and aromaticity similar to carbon-based cyclopentadienide.
Researchers at Chalmers University of Technology have developed a compact, humidity-tolerant sensor that detects hydrogen gas in humid environments. The sensor uses platinum nanoparticles to measure the concentration of hydrogen by analyzing the thickness of a water film on its surface.
A new catalyst enables efficient and stable electrosynthesis of ethylamine at industrial scale, overcoming long-standing challenges in selectivity loss and instability. The developed method supports continuous energy-efficient production of EA using electricity and water.
Researchers at the University of Illinois Urbana-Champaign have developed a new method for synthesizing thermally stable Ni(I) compounds that opens new avenues for building complex molecules. The new catalysts exhibit rapid ligand substitution, exceptional performance in key reactions, and chemo-selectivity.
Researchers discovered that topological surface states can survive and be optimized by electrochemical reconstruction, leading to near-peak ORR activity. The study reveals the importance of considering quantum topology and electrochemical surface chemistry together for next-generation electrocatalysts.
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 develop synthesis method for metal-single atom catalysts that boosts electrolysis-based hydrogen production. The new method produces high purity H2 with only oxygen as a by-product and demonstrates outstanding catalytic performance.
Researchers developed a novel photoredox catalytic radical-polar cross-reaction to achieve precise bifunctionalization of inert C–N bonds and para-C–H bonds in olefin-substituted aniline derivatives. The strategy utilizes sulfur dioxide to capture Meisenheimer intermediates, suppressing the classical free radical aryl migration pathway.
Researchers at Yale and Missouri developed manganese-based catalysts that effectively convert carbon dioxide into formate, a potential key contributor of hydrogen for fuel cells. This breakthrough addresses the challenge of producing cost-efficient ways to produce and store hydrogen.
A team of researchers at Chalmers University of Technology has developed a new way to produce hydrogen gas without the use of platinum, a scarce and expensive metal. The process uses sunlight and tiny particles of electrically conductive plastic to efficiently produce hydrogen.
Researchers have developed a novel catalyst for acidic two-electron oxygen reduction that enables the self-adjusting mechanism. This breakthrough offers a highly efficient, selective, and stable method for hydrogen peroxide synthesis in acidic media.
Researchers developed a computational framework to identify effective catalysts for producing hydrogen peroxide from water and electricity. The approach successfully predicted key reaction properties across diverse materials, leading to the discovery of promising candidate lithium scandium oxide.
A new study reveals a simple two-stage catalytic system using corn straw, biochar, and nickel-based catalysts can more than double the hydrogen content of gas produced during biomass pyrolysis. The addition of biochar as a pre-catalyst further increases hydrogen yield.
A team from Tokyo Metropolitan University has uncovered the sequence of events in the formation of hexaniobate clusters, revealing a precursor's vital role in rapid catalyst formation. This insight promises finer control over an industrially important technology for speeding up chemical synthesis.
Researchers have proposed a new approach to boost sulfur use in solid-state batteries using tandem catalysis. This method achieves stepwise S8 reduction to Li2S via intermediate Li2S2, significantly reducing conversion energy barriers and exploiting deep sulfur conversion capacity.
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 have developed a new approach to overcome limitations in single-atom catalysts by creating one-dimensional organic polymers capable of selectively binding metal atoms. The platform marks a major advance in single atom catalysis, enabling stronger gas binding compared to other structures.
A nickel-catalyzed hydrogen metallization cyclization strategy was developed to synthesize multi-substituted bicyclo[2.1.1]hexanol and its skeletal rearrangement product, a series of 1,2,4-trisubstituted bicyclo[2.1.1]hexanone derivatives. The method offers mild conditions, broad substrate scope, and easy product derivatization.
University of Rochester researchers developed algorithms to analyze complex chemistry in propane-to-propylene conversion. The study reveals the importance of defective metal sites and oxide phase stability in catalysts.
A study from OIST shows that abrasion from common additives can lead to efficient reactions under mechanochemical conditions. Abrasive materials like tungsten carbide or diamond powder activate catalysts and drive coupling reactions. This finding changes the way researchers think about mechanochemical catalysts.
Researchers have designed a new catalyst that stabilizes oxidized copper species under reducing potentials, enabling highly efficient and stable CO2 conversion to C2+ products. The cerium oxide nano-islands act as nanoscale anchors, preserving the active copper oxidation states.
The team's novel findings use metal-organic framework-derived hierarchical porous carbon nanofibers with low-coordinated cobalt single-atom catalysts to enhance redox kinetics and suppress dissolution of lithium polysulfides. This synergistic design enables high-capacity retention and superior rate performance over hundreds of cycles.
The study reveals a temperature-dependent mechanism evolution effect on RhRu3Ox catalysts, leading to more stable oxygen evolution reactions. The researchers demonstrate that the catalyst remains stable for over 1000 hours at room temperature, paving the way for efficient and durable electrochemical devices.
Researchers unveil a paradigm shift in rechargeable Na-Cl2 battery systems by transforming conventional anode-protective additives into efficient cathode catalysts. The discovery reveals a hidden chemistry behind record-breaking performance and cycle life.
Researchers developed a highly efficient cell-free enzyme system that achieves remarkable increases in catalytic performance, reduces cofactor consumption, and produces high yields of 1-alkenes. The system overcomes challenges of whole-cell biocatalysts by mimicking the biological reaction environment.
Researchers developed a photothermal catalyst, Li0.51Mn2O4, to upgrade spent lithium manganate oxides and waste PET into highly efficient recyclable materials. The study achieved high conversion rates and reduced fossil resource consumption by up to 77% compared to traditional thermal catalysis.
Researchers have developed a novel strategy for efficient CO₂ conversion, achieving a mass activity 3.77 times higher than pristine CoPc. The new catalyst, pyridinic-N incorporated phthalocyanine (CoTAP), demonstrates superior performance with less catalyst.
Researchers explore synergetic energy-coupled catalytic systems to overcome barriers in CO2 reduction, enabling more efficient and selective conversion of carbon dioxide into fuels and chemicals. Hybrid systems combine multiple energy inputs, such as light, heat, plasma, and electricity, to activate reactants and catalysts effectively.
A recent study has unraveled the atomic-scale mechanisms behind pH effects on electrochemical reactions, paving the way for rational catalyst design. The research reveals that interfacial electric fields and molecular interactions play a critical role in determining reaction rates and selectivity.
A Tohoku University research team synthesized a high-purity graphene mesosponge that serves as a stable scaffold for loading polymorphic ruthenium catalysts. The study clearly distinguished between carbon cathode degradation and electrolyte decomposition, revealing the 'weakest link' in Li-O2 batteries.
A team from the Universitat Jaume I developed a robotic platform powered by artificial intelligence to optimize chemical processes, reducing environmental impact and increasing productivity. The Reac-Discovery system makes it possible to design and test reactors in just weeks, compared to months or years with traditional methods.
Researchers at Auburn University have developed a new class of materials that allows for tunable electron delocalization, enabling applications in quantum computing, catalysis, and advanced electronics. This breakthrough has the potential to revolutionize fields such as energy transfer, bonding, and conductivity.
Hanbat National University researchers have developed a new method for enhancing the performance of solid oxide fuel cells by inducing cobalt exsolution in high-temperature oxidizing atmospheres. This process results in improved electrochemical properties and higher oxygen reduction reaction activity, making it a promising direction fo...
A team of researchers has discovered the fraction of an electron that makes catalytic manufacturing possible, explaining the utility of precious metals like gold, silver, and platinum. The discovery provides insight for designing new breakthrough catalytic materials, enabling lower-cost manufacturing processes across industries.
Researchers have successfully grown the smallest stable carbon nanotubes, a breakthrough that could lead to advancements in nanoelectronics and cutting-edge technologies. The study uses rhodium-based catalysts to achieve a high yield of the (5, 4) nanotube, paving the way for future applications.
Researchers are creating anchored molecular catalysts to improve stability and efficiency in pharmaceutical manufacturing. The new approach could lead to cleaner, safer reactions, faster production, and reduced costs.
Researchers at DTU Energy and DTU Construct developed a new fuel cell design using 3D printing and gyroid geometry for improved surface area and weight. The Monolithic Gyroidal Solid Oxide Cell delivers over one watt per gram, making it suitable for aerospace applications.
Researchers at the University of Maine Forest Bioproducts Research Institute have discovered a sustainable method to produce (S)-3-hydroxy-γ-butyrolactone, a crucial building block in pharmaceuticals. This approach could significantly reduce greenhouse gas emissions and production costs by up to 60%.
Researchers at Tohoku University have created a high-density W single atom catalyst that significantly speeds up the oxygen evolution reaction, overcoming a key barrier in environmentally friendly technologies. The stable incorporation of tungsten into transition-metal hydroxides/oxides enables ultrathin structures with enhanced active...
A new catalyst breaks down polyolefin plastics into liquid oils and waxes, which can be upcycled into higher-value products. This process bypasses the labor-intensive step of pre-sorting mixed plastic waste, making recycling more efficient and practical.
A new catalyst, NiFe-BNC, has been developed for efficient styrene degradation and CO2 reduction. The catalyst demonstrates scalable potential for pollutant remediation and carbon recycling, advancing closed-loop carbon utilization.
A team of researchers from TU Wien and NUS has successfully observed the production of syngas using operando TEM combined with computational simulations. The results show that a synergy between palladium and palladium oxide is necessary for efficient catalysis, with the two phases taking on different tasks.
Researchers developed a new model and theory to explain nanoparticle growth dynamics, accounting for six essential characteristics of nanoparticle growth. The new theory provides fresh physical insights into the role of nanoparticle motion and configurational degeneracy on their nucleation and growth.
Researchers at Chiba University developed a method for selectively attaching an alkyl group to the C5 position of indole using a copper-based catalyst, producing yields of up to 91%. This approach could enable more affordable and scalable modification of indoles, crucial for drug development.
A new AI-driven framework uses a custom-built catalysis knowledge graph and LLMs to recommend relay catalysis pathways. The system successfully found existing and suggested new pathways for several target molecules, demonstrating its potential to improve efficiency and selectivity in chemical reactions.
A team of researchers proposes hydroxyl adsorption as a selectivity descriptor for electrocatalytic nitrate reduction to ammonia over copper-based catalysts. They found that more negative potentials and lower NO3- concentrations can improve ammonia selectivity.
Researchers at Tohoku University have created a new Fe-N-C catalyst that can partly renew itself while working, showing efficient performance in converting oxygen. The catalyst's ability to maintain activity over time is attributed to a balance between renewal of active sites and gradual processes of deactivation.
Researchers develop a novel process to convert polyethylene and polypropylene into valuable olefins, producing fewer unwanted byproducts. The method uses inexpensive base-metal catalysts, operates under mild conditions, and achieves high yields of propylene and isobutylene.
Researchers have discovered a new material that matches or exceeds the performance of commercial iridium-based materials, but at a fraction of the cost. The breakthrough was achieved using a powerful new tool called a megalibrary, which rapidly screened vast combinations of metals to find a suitable alternative.