Catalytic synthesis of phenols with nitrous oxide
The emission of greenhouse gases threatens the global environment, and scientists around the world are increasingly committed to addressing this issue. While many research groups focus on carbon dioxide (CO2) or methane (CH4) revalorization strategie.....»»
New method for asymmetric N,N-acetal synthesis promises advances in drug development
Chiral N,N-acetals are an important component of several bioactive drugs and medicines. Owing to this, chemical reactions that lead to high-purity yield of the desired 'enantiomeric' form are highly sought after. In a new study, scientists demonstrat.....»»
New method for asymmetric N,N-acetal synthesis promises advances in drug development
A lot of our medicines and other bioactive drugs are based on chemical structures called enantiomers—molecules that are mirror images of each other and are non-superimposable. Notable among them are chiral N,N-acetals contained in diuretic drugs li.....»»
New Type of DRAM Could Accelerate AI
Capacitorless DRAM using oxide semiconductors could be built in 3D layers above a processor’s silicon One of the biggest problems in computing today is the “memory wall”—the difference between processing time and the time it takes.....»»
Understanding catalytic couplings: not all synergies are simple
Negishi cross-coupling reactions have been widely used to form C-C bonds since the 1970s and are often perceived as the result of two metals, zinc and palladium/nickel, working in synergy. But like all relationships, there is more under the surface......»»
Fingerprint for the formation of nitrous oxide emissions
Scientists led by Eliza Harris and Michael Bahn from the Institute of Ecology at the University of Innsbruck have succeeded in studying emissions of the greenhouse gas N2O under the influence of environmental impacts in an unprecedented level of deta.....»»
Scientists reveal synergistic effects in dual single-atom catalyst
Single-atom catalysts (SACs) are applied in heterogeneous catalysis. Instead of one type of single atom, dual single-atom catalysts (DSACs) deliver superior catalytic performance than SACs due to cooperation between the dual metal-atoms......»»
Increasing soil pH reduces fertilizer-derived nitrous oxide emissions
A new scientific paper from Teagasc has shown that getting soil pH right through a liming program can significantly reduce emissions of nitrous oxide (N2O), a potent greenhouse gas. The paper from researchers at the Teagasc Environment, Soils and Lan.....»»
Using zirconium as an additive in super-strong composite materials
Ceramic matrix composites (CMCs) are incredibly strong materials used in jet engines, gas turbines, and cutting tools for nickel superalloys. Aluminum oxide (Al2O3) is hard and chemically inert, and tungsten carbide (WC) is used as a superhard materi.....»»
New materials with high oxygen-ion conductivity opening sustainable future
Scientists at Tokyo Institute of Technology (Tokyo Tech), Imperial and High Energy Accelerator Research Organization (KEK) Institute of Materials Structure Science, discover new Ba7Nb4MoO20-based materials with high oxygen-ion (oxide-ion O2-) conduct.....»»
Titanium oxide nanotubes facilitate low-cost laser-assisted photoporation
A research team at the Department of Mechanical Engineering at Toyohashi University of Technology developed a nanosecond pulse laser-assisted photoporation method using titanium-oxide nanotubes (TNT) for highly efficient and low-cost intracellular de.....»»
Synthesis of potent antibiotic follows unusual chemical pathway
Images of a protein involved in creating a potent antibiotic reveal the unusual first steps of the antibiotic's synthesis. The improved understanding of the chemistry behind this process, detailed in a new study led by Penn State chemists, could allo.....»»
Researchers develop sustainable catalysis process
Acetals are important chemical compounds that are used, for example, in the production of certain medical agents. A new method now makes their synthesis easier and more environmentally friendly. Chemists at the University of Bonn have developed and o.....»»
Future options for storing carbon dioxide: Synthesis of inorganic heteroalkenes
Group 13/15 heteroalkenes RMER' with M-E double bonds (M = B-Tl; E = N-Bi) offer promising potential for bond activation reactions, but they are difficult to prepare. A team led by CENIDE professor Stephan Schulz now describes new synthetic methods f.....»»
Anisotropy of surface oxide formation influences the transient activity of a surface reaction
Metal surfaces play a role as catalysts for many important applications—from fuel cells to the purification of car exhaust gases. However, their behavior is decisively affected by oxygen atoms incorporated into the surface......»»
Researchers develop ultrahigh-performance plasmonic metal-oxide materials
In a study published in Advanced Materials, researchers from Hefei National Laboratory for Physical Sciences at the Microscale, the University of Science and Technology of China of the Chinese Academy of Sciences, using an electron-proton co-doping s.....»»
High-speed atomic force microscopy visualizes cell protein factories
Ribosomes are the complexes of ribonucleoproteins at the heart of protein synthesis in cells. However, in the absence of conclusive evidence, how these complexes operate has been open to debate. Now, Hirotatsu Imai and Noriyuki Kodera at Kanazawa Uni.....»»
Carbon-based catalysts used for Fischer-Tropsch synthesis
Fischer-Tropsch synthesis (FTS) is an essential approach to convert coal, biomass, and shale gas into fuels and chemicals, such as lower olefins, gasoline, and diesel......»»
Researchers regenerate deactivated catalyst in methanol-to-olefins process
The MTO process, which was first commercialized in 2010, is a catalytic process converting methanol—which is typically made from coal, natural gas, biomass, and CO2—over a SAPO-34 zeolite catalyst. It's becoming one of the main streams for produc.....»»
Microreactor for synthesis with Grignard reagents
In 1912, Victor Grignard was awarded the Nobel Prize in Chemistry for his discovery of what came to be known as Grignard reagents. Since then, these compounds have come to play a key role in the chemical and pharmaceutical industries. Now, in a devel.....»»
Chemists succeed in synthesis of aminoalcohols by utilizing light
Whether in beta-blockers to treat high blood pressure or in natural products, so-called vicinal aminoalcohols are high-quality organic compounds that are found in many everyday items. However, their production is difficult, and for a long time, chemi.....»»