Articles tagged with Catalysis
Researchers developed uniform tungsten trimers on titanium dioxide, offering insights into metal oxide catalysts. The nanostructures reveal consistent alignment and uniform size, making them ideal for fundamental reactivity studies.
Scientists at the University of Illinois have developed a new catalyst that efficiently removes and destroys harmful perchlorate in contaminated groundwater. The catalyst, composed of palladium and rhenium supported on activated carbon, operates at room temperature and can eliminate perchlorate altogether.
A new catalyst discovered by Boston College chemists can synthesize biologically active molecules with high selectivity, eliminating the need for costly and wasteful steps in drug production. The catalyst can also reduce environmental impact and increase efficiency.
Gold nanoclusters can be activated as catalysts with thin magnesium oxide films, even in defect-free conditions. The study reveals that the film's thickness influences the cluster's structure and dimensionality.
Researchers at UCSC's RNA Center have obtained a near-atomic resolution image of the three-dimensional shape of a ribozyme, revealing how functional groups of RNA mediate acid-base chemical catalysis. This breakthrough sheds new light on the 'RNA World' hypothesis and has implications for understanding the origins of life.
Researchers used X-ray spectroscopy to observe gold nano-particles' reaction with oxygen and carbon monoxide, revealing the activation mechanism of oxygen. The findings have potential applications in pollution control and hydrogen purification.
Researchers at Iowa State University have developed a new biodiesel technology that uses nanotechnology to create a more efficient and economical process. The technology, led by Victor Lin, accurately controls the production of tiny silica particles to convert raw materials into biodiesel.
The ECHO project grant funds innovative chemical research, including new synthetic methodologies and single metal nanoparticles in catalytic action. Researchers investigate ultrasmall magnets' behavior to understand fluid formation, and study peroxisomal enzymes' functionality and uptake.
The Netherlands Organization for Scientific Research has awarded €1 million to support state-of-the-art chemical research facilities. The funding will be used to acquire new equipment and improve existing facilities for researchers at the Universiteit van Amsterdam, Radboud University Nijmegen, and Eindhoven University of Technology.
Researchers have developed a new technology that converts coal into diesel fuel, potentially cutting the US's reliance on foreign oil. The process uses Nobel Prize-winning chemistry to control the molecular weight of hydrocarbon products, producing useful fuels while eliminating undesirable byproducts.
Scientists at UNC-Rutgers create a more efficient method for producing diesel fuels from coal using a dual-catalyst system. This breakthrough could provide an attractive alternative to oil-based fuels, particularly as oil reserves dwindle, and enable the widespread adoption of cleaner-burning transportation fuels.
Researchers at Scripps Research Institute demonstrate that RNA enzymes can be evolved into DNA enzymes with the same catalytic function, challenging existing understanding of life's origins. The study offers fresh insights into the evolutionary conversion process and its potential implications for our understanding of life.
Brookhaven scientists have developed a method to create well-defined nanoparticles of metal compounds for catalytic interest. This new approach, reactive layer assisted deposition (RLAD), enables researchers to understand the atomic structures of these particles and their reactivity on the nano scale.
The Lancet highlights efforts to eliminate infectious diseases and promote healthy change in the Middle East. Global interest in health can be used to forge partnerships and depoliticize the region, catalyzing a renaissance of medicine.
Researchers have developed a method to separate two different catalysts from a multi-step chemical reaction done in a single vessel using magnetic nanoparticles. This technique could lead to more efficient production of specialty chemicals and reduce waste, benefiting the pharmaceutical and specialty chemical industries.
A Brandeis chemist has made a significant breakthrough in developing new methods for molecular synthesis, which could lead to the creation of environmentally-friendly catalysts. His research focused on functionalizing carbon-fluorine bonds, a major component of potent greenhouse gases.
A team of Brown University chemists has developed a new class of molecules that exhibit fast and efficient catalytic properties, making them suitable for use in the pharmaceutical industry. The compounds also show promise for storing hydrogen and other gases, which could be used to generate clean energy.
Kumta's team is developing nanostructured catalyst compositions to improve the efficiency of direct methanol fuel cells. The goal is to create a fuel cell system small enough for portable electronic devices.
A new type of catalyst made from activated hydrotalcite has been developed, offering a more efficient and environmentally friendly alternative to traditional homogeneous catalysts. This innovative material can be used in various applications, including the production of methyl isobutyl ketone and other organic reactions.
Researchers at Scripps Research Institute have created a detailed snapshot of a cocaine antibody's dynamics, revealing its potential as a therapeutic agent for treating addiction. The study's findings provide insight into the molecular basis of catalysis and suggest possible mutations to enhance the antibody's efficacy.
Researchers at Lehigh University have determined the structure of a type of gold-palladium nanoparticle, which is crucial for an environmentally friendly catalyst promoting the oxidation of primary alcohols to aldehydes. The catalyst outperformed similar ones in terms of efficiency.
Researchers have discovered a way to create complex 3D nanostructures using standard semiconductor tools, opening up new possibilities for device manufacturing and applications. The new structures are stable, well-defined, and nearly defect-free over large areas.
Researchers at Penn State developed a new nanofiber fabrication technique inspired by forensic science's fingerprint development method. The technique produces biocompatible materials, including fibers with diameters in the 200-250-nanometer range and nano-sized spheres.
Recent studies have shed light on RISC assembly in humans, a process crucial for gene expression and regulation. The research found that RISC components are assembled from individual genes to form functional complexes.
Scientists at Freie Universität Berlin identify a new intermediate state in the Kok cycle, crucial for molecular oxygen formation. This discovery sheds light on the mechanism of photosynthesis and has implications for more efficient solar cells.
A team of researchers developed fine-tunable carbon-supported gold catalysts that can achieve selective hydrocarbon oxidation under mild conditions. The catalysts enable the conversion of unsaturated hydrocarbons to oxygen-containing organic compounds with higher yields and environmental friendliness.
Researchers at the University of Illinois have developed a novel method for proofreading and error-correction in nanomaterials, utilizing catalytic DNA to detect and remove incorrect particles. This approach mimics nature's accuracy mechanisms in protein synthesis and holds promise for precise control over nanoparticle assembly.
A recent study found that a single water molecule can catalytically enhance the oxidation of carbon monoxide to carbon dioxide at low temperatures. This breakthrough could lead to new channels of reactivity using polar molecules like water.
PNNL scientists employed x-ray spectroscopy to observe the reaction as it occurred, identifying a cluster of four rhodium atoms at the active site. This approach allows researchers to understand catalyst-reactant interactions under practical conditions, shedding light on key catalytic processes.
Virginia Tech researchers have made significant progress in understanding how to convert water into hydrogen gas using photochemical processes. They have developed molecular assemblies that absorb light more efficiently and activate conversion, which has implications for the production of clean energy.
Researchers at Carnegie Mellon University have discovered a green catalyst, Fe-TAML, that can efficiently destroy nitrophenol pollutants. The catalyst works with hydrogen peroxide and has shown promise in killing biological warfare agents, reducing fuel pollutants, and detoxifying pesticides.
Researchers have designed new cyclic alkyl amino carbenes (CAACs) that enhance stability and efficiency of metal catalysts. These carbene-based catalysts facilitate faster chemical transformations at lower temperatures, reducing costs in pharmaceutical manufacturing.
Researchers at UCSD's Jacobs School of Engineering have successfully fabricated a transistor-like structure using customized Y-shaped carbon nanotubes, exhibiting rapid switching speeds and three-way gating capability. This breakthrough could lead to the development of new nanotechnology devices with improved functionality.
Researchers have developed porous support materials that can withstand the rigors of high-temperature reforming of hydrocarbon fuels. The new materials satisfy all three key requirements for a catalyst support: high surface area, stability at high temperatures, and low pressure drop.
Illinois chemists have discovered a way to produce a highly porous network of molybdenum disulfide that preferentially exposes catalytic edges, improving sulfur removal efficiency. The new method uses ultrasonic spray pyrolysis and can be scaled up for industrial applications.
Researchers at UCSB have developed a method to couple synthetic molecules onto gold nanoparticles, mimicking the natural biological catalyst of the marine sponge. This discovery represents a low-temperature, biotechnological route to producing valuable nanomaterials.
The study found that improving catalyst particle surface characteristics increases reaction rate efficiency and reduces expensive catalyst needed. Catalyst particles adhere better to gas bubbles with these modifications, resulting in increased efficiency.
Scientists at UCSD successfully shape carbon nanotubes into sharp bends, enabling new applications in atomic force microscopy and fuel cells. The breakthrough could lead to more efficient and compact electronic devices.
Researchers at Rutgers University develop nanostructured iridium surfaces to extract hydrogen from ammonia, enabling efficient fuel cell operation. The process could contribute to the solution of hydrogen economy's storage and transport obstacles.
Researchers at Ohio State University have developed a new, more efficient catalyst to produce hydrogen from coal. The catalyst outperforms a commercially available alternative by up to 25 percent and shows promise for large-scale coal gasification.
Researchers have discovered that the loss of sulphur atoms from hydroprocessing catalysts is a key cause of their deactivation. This process can lead to a decrease in the catalyst's ability to convert sulphur compounds into clean fuels.
Researchers found that ceria nanoparticles with zirconium and gold improve oxygen storage and release, leading to more efficient catalytic converters. This technology holds promise for a cleaner future.
The Purdue team used a unique method to study the oxidation of methane on a palladium catalyst, revealing that the rate is always the same regardless of the surface exposed. This breakthrough could lead to more efficient catalytic combustion technology, reducing pollution and improving energy efficiency.
Researchers at Rice University and Georgia Institute of Technology developed bimetallic nanoparticles that can break down TCE, a toxic organic pollutant found in US groundwater. The particles increase the efficiency of TCE remediation by several orders of magnitude compared to bulk catalysts.
High-intensity ultrasound is used to generate nanoparticles of molybdenum disulfide or oxide, which bind to tiny silica spheres. Hollow shells are then created by etching away the silica, resulting in nanospheres with increased edge-surface area for enhanced catalytic activity.
Computer simulations have revealed that gold is an effective catalyst when it's in clusters of eight to two dozen atoms, and electrical charging plays a crucial role. This breakthrough has opened up new avenues for exploring environmental effects on catalysis.
Saba Valadkhan, an Iranian-born scientist, has solved the 20-year mystery of splicing catalysis by proving that purified U2 and U6 snRNAs have catalytic activity. Her discovery has implications for understanding cell growth control, differentiation, and disease.
Researchers have developed an efficient new strategy to synthesize a natural marine product with promising anti-tuberculosis activity, overcoming challenges of conventional chemistry. The breakthrough enables the production of gram quantities in just days, paving the way for developing potential anti-inflammatory and anticancer agents.
Researchers isolated a highly reactive iron-sulfur complex from a bacterium, which outperforms current industrial catalysts in reactivity. The discovery could lead to the development of new, more efficient chemical processes and materials.
Researchers have found that gold nanoclusters can become electrically charged when anchored to defects in a magnesium oxide catalytic bed. This charging mechanism enables the transfer of an electron to reacting molecules, weakening chemical bonds and allowing reactions to occur at low temperatures.
Researchers aim to develop new catalysts that can convert water into hydrogen with improved efficiency, reducing energy consumption by up to 40%. The project seeks to replicate nature's process of splitting water into oxygen and protons using manganese-based catalyst materials.
A European network aims to enhance coordination of innovation-driven research in catalysis and sustainable chemistry. The initiative seeks to increase efficiency and strengthen the field's position on the European research agenda.
Researchers at Purdue University are developing a computer environment that enables experts to talk naturally in their specific scientific language, allowing them to take full advantage of advanced visualization capabilities. This system, called discovery informatics, promises to speed up the process of discovery in many areas of resea...
Researchers at Virginia Tech have developed a system that converts light energy from the sun into chemical energy, producing hydrogen gas. The team's molecular machines use light signals to collect and deliver electrons, enabling the production of hydrogen through artificial photosynthesis.
Researchers have developed a new hydrogen generator that uses sunflower oil, air, and water vapor to produce hydrogen intermittently. The process reduces dependence on foreign oil and generates fewer pollutants than traditional methods.
Researchers at Johns Hopkins University have developed a new set of molecules that can catalyze the cleanup of common groundwater pollutants called organohalides. The compounds 'break bonds' holding dangerous pollutants together, rendering them safer.
Scientists have discovered that adding titanium to sodium aluminum hydride enables reversible hydrogen release and absorption. The titanium acts like a molecular 'key,' facilitating the reaction. Understanding this mechanism may lead to improved hydrogen storage materials and better catalysts for fuel cells.
Researchers have developed a way to study single molecules of RNA enzymes, also known as ribozymes. They found that modifications anywhere on the molecule affect catalysis rates, even far from the active site. This discovery may lead to practical applications in designing biological sensors for various purposes.
Researchers at Imperial College London have shown that an amino acid can amplify the concentration of one particular chiral form, a process known as autocatalysis. This discovery may offer insights into the evolution of biological homochirality and could provide a model for how life began.
Researchers at Lehigh University are exploring the properties of nanogold, creating nanoparticles with defined shapes and sizes to exhibit distinct properties. They can tailor these properties by varying particle size and elemental composition.