Articles tagged with Catalysis
A new virtual ligand-assisted screening method enables efficient searching of ligands for optimal catalysis, accelerating reaction design. By simplifying ligand description with two metrics, researchers identify promising ligands and focus on real testing.
Researchers visualize ethylene polymerization on ordered iron carbide surface using in situ technology, revealing molecular insertion mechanism and chain initiation process. The study clarifies the scientific debate regarding chain initiation over Phillips catalysts and provides a method for controlling product chain length distribution.
A study by researchers at Pusan National University has investigated the relationship between surface structures and nanoscale friction in multi-layered CVD graphene. They found that only the top-most layer of graphene was twisted with respect to the rest, affecting layer-dependent nanoscale friction.
Researchers have developed a sustainable methodology to utilize biomass waste for efficient remediation of antibiotic pollution. Fe-contaminated biomass waste ferns are used to synthesize highly active single atom catalysts, demonstrating an appealing strategy for pollutant control and other applications.
Researchers have identified a novel enzyme that catalyzes the formation of glycosidic bonds in complex sugar moieties. The discovery provides fresh insights into carbohydrate metabolism and offers a breakthrough for the synthesis of sugar chains, which play key roles in various biological processes.
Researchers at Tokyo Metropolitan University developed a simple synthesis method for iron-based single-atom catalysts that activate peroxymonosulfate to break down difficult-to-degrade pollutants. The team discovered two distinct chemical pathways involving 'high-spin' state iron sites, which interact with peroxymonosulfate to create r...
Scientists have created a 'greener' way to clean wastewater treatment filters by using glucose-based nanoparticles, which effectively remove contaminants without destroying the membrane. The new system is more cost-effective and environmentally friendly than traditional methods.
A zirconium oxide-supported platinum-molybdenum catalyst enables the selective conversion of esters into valuable unsymmetrical ethers under mild conditions. This process offers a sustainable solution for producing these compounds from renewable biomass-derived materials, reducing waste and energy consumption.
Researchers at MIT have developed a new, inexpensive catalyst material that can produce oxygen from water, potentially replacing rare metals and reducing the cost of producing carbon-neutral fuels. The material, made of abundant components, allows for precise tuning and matches or exceeds the performance of conventional catalysts.
Researchers from Eötvös Loránd University have created a more efficient method for producing catalysts, which can speed up chemical transformations and reduce environmental impact. This breakthrough could lead to faster drug development and improved pesticide production.
Scientists have gained a new understanding of the atomic level interactions in complex catalysis, enabling more efficient and sustainable chemical production. Researchers used x-ray spectroscopy, machine learning analysis, and first principles calculations to model reactions and identify active site structures.
Researchers at Princeton University have developed a method to generate less-stable olefins from internal olefins catalytically, utilizing photocatalysis and chromium co-catalysis. This innovation allows for the conversion of internal olefins into terminal olefins, which are useful starting points in various chemical processes.
Researchers at the University of Bath have developed a simple and rapid chemical recycling process for polycarbonates, breaking down plastic waste within 20 minutes at room temperature. The new process can convert waste into its chemical constituents, preserving product quality over an infinite number of cycles.
Researchers at Tokyo University of Science have discovered a method to improve the crystallinity of coordination nanosheets by mixing two metal ion solutions. This approach results in higher crystallinity and improved performance in devices such as electronics and batteries. The findings open a new pathway for tuning the functional pro...
A research team has developed a highly active catalyst for CO2 reduction using electrocatalysts with dual-atom iron sites. The catalyst shows a 2.8 times higher conversion efficiency compared to single-atom catalysts.
The review article discusses unconventional metal-based materials for electrocatalysis, including s-, d-, and f-block metals. It aims to accelerate research and development of novel, innovative catalyst materials for efficient green hydrogen production.
A team of scientists has successfully developed a photo-induced catalytic C-H heteroarylation method for ferrocenes and ruthenocenes, allowing for the creation of new pyridyl and pridonyl metallocenes. This protocol offers mild and concise conditions for functionalization, with significant implications for material science and catalysis.
Researchers at Lund University have developed a way to convert carbon dioxide into fuel using solar energy, creating a potential solution for reducing greenhouse gas emissions. The process uses advanced materials and ultra-fast laser spectroscopy, allowing for the conversion of CO2 to carbon monoxide.
A research team at the Dalian Institute of Chemical Physics synthesized renewable nylon monomers from poplar wood using a Pd/C catalyst. The total carbon yield was found to be 39.2%, enabling further conversion to valuable chemicals.
A new electrocatalyst, Co2MnO4 spinel, shows high stability in acid environments for the oxygen evolution reaction. The researchers used density functional theoretical calculations and multi-dissolution pathways to explain its high stability.
A new method to produce hydrogen from water has been discovered, using cobalt and manganese as catalysts. This breakthrough could lead to a cleaner and more sustainable hydrogen economy, reducing reliance on fossil fuels.
Researchers at NTU Singapore have developed a new method to generate sulphur pharmacophores, which are crucial for drug discovery. The method uses a catalyst called pentanidium and can produce multiple variations of pharmacophores, making the process more efficient and fruitful.
Researchers have developed a new method for producing hydrogen peroxide using copper-doped titanium dioxide as a catalyst. The process exhibits high selectivity and yield, making it a safe and sustainable alternative to traditional methods.
A new catalyst developed by researchers extracts hydrogen from liquid organic hydrogen carriers (LOHCs) easily and efficiently. The breakthrough offers a promising solution to adopting hydrogen fuel for transportation, addressing a long-standing challenge.
Researchers identify two key principles determining reaction specificity in converting CO2 and ethane into synthesis gas or ethylene. The formation energy of the bimetallic catalyst and binding energy between the catalyst and oxygen released from CO2 are crucial in driving reaction selectivity.
Cerium oxide mesocrystals can be fabricated in a controlled way using radiation chemistry, enabling tuning for applications such as solar cells and fuel catalysts. The unique structure of these nanomaterials allows for customization of optical, magnetic, or electronic properties.
Researchers at Stanford University have created a new catalyst that can convert carbon dioxide into gasoline up to 1,000 times more efficiently than existing standards. The breakthrough allows for the production of long-chain hydrocarbons, making it easier to handle and store, with potential applications in a carbon-neutral cycle.
Scientists from Tokyo Tech have developed a reusable catalyst for oxidative C–H functionalization, making the process faster and more efficient. The catalyst, murdochite-type Mg6MnO8 nanoparticles, can catalyze the selective oxidation of alkylarene compounds under mild reaction conditions.
Cornell University chemists have developed a class of nonprecious metal derivatives that can efficiently power cars and generate electricity with minimal greenhouse gas emissions. The breakthrough could enable wider deployment of hydrogen fuel cells, replacing combustion engines and reducing waste.
A research team at PNNL has developed a system that converts waste carbon from sewage, food crops, and algae into fuels while removing impurities. The electrocatalytic oxidation fuel recovery system generates hydrogen to power its own operation, making it potentially carbon-neutral.
University of Warwick scientists developed a new method to produce indolic amides, carboxylic acids, and auxins using enzymes that mimic plant production. The process is reusable, produces minimal waste products, and could help make pharmaceutical and agrochemical manufacturing more environmentally friendly.
Researchers from Waseda University have developed an alternative technique, sampled current voltammetry (SCV), to accurately determine the activity of electrocatalysts used in water-splitting reactions. The study shows that SCV can provide reliable measurements of electrocatalytic performance at constant steady-state applied voltages.
Researchers at Tokyo Metropolitan University have developed a scalable way to assemble nanowires into nanoribbons, a promising material for sophisticated electronic devices and catalysts. The method involves weaving together nanowires with chalcogen atoms and heat, resulting in atomically thin ribbons with unique properties.
Researchers at Hokkaido University have developed a novel catalyst that significantly improves the efficiency of propylene production. The catalyst utilizes carbon dioxide efficiently and exhibits high selectivity, stability, and long-term reusability.
A team of scientists from the University of Science and Technology of China developed an oxide-derived Cu catalyst with a superior Cu(100)/Cu(111) interface, which displayed high Faradaic efficiency during CO2 reduction reaction. The interface played a critical role in C-C coupling and exhibited superior catalytic performance.
Researchers developed an auto-switchable phosphazene-based catalyst to create well-defined diblock terpolymers in a single step, overcoming the limitations of traditional two-step polymerizations. This innovative approach offers vast potential for producing diverse polymers for various industrial applications.
Researchers have developed a new nanocatalyst for the dry reforming of methane, overcoming coking resistance with its confined core-shell structure. The catalyst's superior carbon resistance is attributed to the confinement and electron transfer between In and Ni.
A new method of molecular-level control, called induced activation, doubles the efficiency of widely used industrial catalysts. This approach manipulates the catalyst surface by controlling reducing agents at the catalyst activation stage.
Researchers at Penn State have been awarded a $3.4 million contract from the REMADE Institute to develop a flexible, two-stage chemical recycling process for mixed plastic waste. The process aims to decompose multiple types of plastic and convert them into valuable chemicals that can be used to create new products.
Researchers at Hokkaido University have developed a new method for creating chemical subunits using blue LEDs and copper, reducing the need for precious metals. This breakthrough has potential applications in pharmaceutical and photoelectronic development.
Researchers at Georgia Institute of Technology have developed a new water-splitting process and material that maximize the efficiency of producing carbon-free green hydrogen. The hybrid catalysts show superior performance for both oxygen and hydrogen splitting, making it an affordable and accessible option for industrial partners.
Scientists from GIST developed a photoswitchable catalyst that deactivates upon UV light exposure, facilitating controlled chemical reactions. The research paves the way for sophisticated synthesis mechanisms in chemistry and applications like photolithography.
A research team has developed a new strategy to create molecular compounds without multi-step syntheses, using a system of three catalysts. The catalysts work together to selectively insert an aryl group into unactivated alkenes, offering a sustainable and efficient solution for organic synthesis.
A team of researchers at MIT has identified and modeled a major reason for poor performance in electrochemical carbon dioxide conversion systems, which is caused by a local depletion of CO2 gas near the electrodes. By pulsing the current off and on, they can replenish the gas levels, allowing the process to continue efficiently.
A new catalytic approach directly converts solid biomass into natural gas with a low carbon footprint, achieving nearly complete conversion of various agricultural and forestry materials. This process reduces fossil energy depletion and greenhouse gas emissions by up to 26% and 34%, respectively.
Scientists visualized the distribution of atoms in cobalt iron oxide nanoparticles and studied structural changes on the surface during oxygen evolution reaction. The findings provide atomic insights into compositional changes affecting catalytic performance.
Researchers at RIKEN successfully treated cancer in mice using metal catalysts that assemble anticancer drugs inside the body. The technique avoids indiscriminate tissue damage and increases cancer-inhibiting activity by 1000 times.
Researchers at Rice University have developed a theory showing how manipulating quasiparticles could help improve chemical reactions. By applying electric fields, holes can be made to migrate across the surface of catalyst particles, activating neighboring sites and increasing the efficiency of the reaction.
Researchers at Cardiff University have demonstrated the suitability of gold as a catalyst to produce methanol and acetic acid from methane in natural gas. The novel method uses gold nanoparticles, which exhibit different physical and chemical properties compared to larger material counterparts.
Researchers at the University of Bonn have developed a new method to introduce heavy hydrogen isotopes into drugs, potentially making them more effective. The technique involves the use of epoxides and a titanium-based catalyst, allowing for precise control over the placement of deuterium atoms.
Researchers create new route for producing PCTA monomer using plant-based acrylate and acetaldehyde, achieving overall yield of 61%. The method also produces UNOXOL diol in high yield, reducing carbon footprint.
The University of Central Florida researchers have developed an alcohol-based power source for cars and other technology that uses less fuel and produces fewer emissions compared to traditional fossil fuels. The ethanol fuel cell has achieved a maximum power density and operation time of over 5,900 hours, making it a promising alternat...
Researchers have designed new catalysts that can improve the efficiency of hydrogen production through water electrolysis, potentially reducing costs by up to 80%. The breakthrough could help achieve the US goal of zero emissions by 2030.
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 at Iowa State University have developed a catalyst technology that converts methane into ethane and ethylene with high efficiency and selectivity. The new technology uses platinum-based MXene structures to break down methane bonds, producing valuable chemicals without emitting the most abundant greenhouse gas, carbon dioxide.
Researchers have paired Barton's base, a 1980s catalyst, with click chemistry to accelerate complex molecule generation in biomedical research and drug development. The new ASCC method skips intermediate steps, reducing waste and enhancing 'green credentials',
A new artificial intelligence framework called TinNet combines machine-learning algorithms and theories to identify new catalysts for efficient energy production. By understanding how catalysts interact with different intermediates, researchers can design robust catalytic processes that improve daily life.
Researchers at Kazan Federal University study hydroxyapatite's properties as a catalyst, finding that iron incorporation is energetically comparable and preferentially localized. The study uses density functional theory calculations to analyze the introduction of iron ions in the HAp lattice.
A catalyst innovation has improved the stability of direct-ethanol fuel cells for nearly 6,000 hours, solving three key problems. This breakthrough could lead to mass adoption of clean cars powered by DEFC technology within five years.
Researchers at Tianjin University have designed a novel carbon-coated Ni-Co alloy catalyst that improves the stability and efficiency of in-situ aqueous phase hydrodeoxygenation. The catalyst achieved a hydrocarbon yield of 92.6%, making it a promising alternative to traditional methods.