Iridium-catalyzed Z-retentive asymmetric allylic substitution reactions
In synthetic organic chemistry, Z-olefins are a challenging synthetic target to produce in the lab due to their relative thermodynamic instability. The Z-olefins form an unsaturated compound with a CnH2n formula that can be readily isomerized. Analog.....»»
Meteoritic and volcanic particles may have promoted origin of life reactions
Precursors of the molecules needed for the origin of life may have been generated by chemical reactions promoted by iron-rich particles from meteors or volcanic eruptions on Earth approximately 4.4 billion years ago, according to a study published in.....»»
Ultrafast X-ray spectroscopy: Watching molecules relax in real time
Designing the next generation of efficient energy conversion devices for powering our electronics and heating our homes requires a detailed understanding of how molecules move and vibrate while undergoing light-induced chemical reactions......»»
Who will benefit from China"s Micron ban?
Following China's move on May 21 to prevent its critical IT infrastructure operators from procuring Micron products, citing national security concerns, China-based securities firms belive that it will drive the process of domestic substitution in Chi.....»»
Chinese firm develops ArF photoresists for 90-28nm chip production
China's Nanta Opto-electronic Material has successfully developed DUV ArF photoresists that can support production of 90-28nm chips, aiming to serve import-substitution demand for photoresists used in mature manufacturing processes, according to indu.....»»
Some countries express fewer negative emotions than others: This is how people feel around the world
Emotions are affective reactions we experience to stimuli. They can be positive, such as feeling relaxed or enjoying what you are doing (shopping or going for a walk, for example); and negative, such as being angry, sad or worried......»»
NIR spectroscopy provides easy, cost-effective method for food allergen testing
Food allergies pose a significant health risk, resulting in numerous hospitalizations every year, as even trace amounts of allergens can trigger severe reactions. Cross-contamination of food products can happen easily in the production process, so it.....»»
Chinese MCU makers look to gain from import-substitution demand for consumer applications
Chinese MCU (microcontroller unit) suppliers, including Sino Wealth Electronic and GigaDevice Semiconductor, are striving to cash in on import-substitution demand in China and boost their domestic market shares, especially for consumer applications,.....»»
Crystal phase-dependent activity of mnGaOx observed in direct syngas to light olefins
Two notable metal oxide structures, spinel-type oxide and solid solution-type oxide, are widely used in Oxide-Zeolite (OXZEO) bifunctional catalysts for CO/CO2 hydrogenation reactions......»»
Chemical reactions on the early Earth may have formed its ocean
Conditions that favor water may be common in the formation of rocky planets. Enlarge (credit: NASA/NOAA/GSFC/Suomi NPP/VIIRS/Norman Kuring) Water has made the Earth the planet that it is—a planet known for its blue oce.....»»
Scientists use peroxide to peer into metal oxide reactions
Researchers at Binghamton University led research partnering with the Center for Functional Nanomaterials (CFN)—a U.S. Department of Energy (DOE) Office of Science User Facility at Brookhaven National Laboratory—to get a better look at how peroxi.....»»
Origin and effect of surface oxygen-containing species on electrochemical carbon/oxygen reduction reactions
Renewable-energy-powered electrochemical CO or CO2 reduction reactions (CO(2)RR) is one of the most promising strategies to upgrade CO2 to valuable products. A key question and bone of contention is whether any surface or subsurface oxygen remains on.....»»
Big China orders could be "poisonous honey" to Taiwan IC supply chain players
While China is moving at full throttle toward the 'domestic substitution' goal for semiconductor equipment and materials, Chinese customers are also frantically placing orders or seeking cooperation with Taiwanese suppliers. This, however, may put th.....»»
Review: Iridium-based catalysts look set to boost efficiency of green hydrogen production
Hydrogen production powered by wind and solar energy is still too expensive if it is to play a role in the clean transition via energy storage and to help decarbonize hard-to-electrify sectors. Much effort in reducing its cost focuses on enhancing pr.....»»
Breaking the barrier: Low-temp ammonia synthesis with iron catalysts and barium hydride
The Haber-Bosch (HB) process is one of the most important industrial chemical reactions. It combines nitrogen and hydrogen gases in the presence of an iron-based catalyst at high temperatures and pressures to produce ammonia fertilizer which helps pr.....»»
An improved, visible light-harvesting catalyst to speed up reactions
Photocatalysis is the use of light to accelerate the rate of a reaction in the presence of a photocatalyst. The catalyst plays a crucial role in this process—it absorbs the light being shined onto it and makes it available in ways that can help acc.....»»
Is it COVID-19 or the flu? New sensor could tell you in 10 seconds
Have a cough, sore throat and congestion? Any number of respiratory viruses could be responsible. Conventional tests can identify certain likely culprits by relying on chemical reactions, but some researchers want to swap chemistry for electrical cha.....»»
Fallout 4 mod uses voice AI to add sensible reactions, more RPG-like choices
More than 300 lines added for cannibals, lunkheads, and other role-players. Enlarge / Just because you're still alive in a retro-futuristic-post-apocalyptic Commonwealth doesn't mean you're necessarily witty. (credit: Bethesda /.....»»
Evidence for the existence of a deeply bound dibaryon, built entirely from beauty quarks
Dibaryons are the subatomic particles made of two baryons. Their formations through baryon-baryon interactions play a fundamental role in big-bang nucleosynthesis, in nuclear reactions including those within stellar environments, and provide a connec.....»»
Solving the mystery of left-handed amino acids in primordial RNA reactions
While humans have an esthetic liking for symmetry in everything, nature prefers asymmetric, single-handed forms when it comes to amino acids—the building blocks of proteins, and, by extension, all things biological......»»
Scientists identify substance that may have sparked life on Earth
A team of Rutgers scientists dedicated to pinpointing the primordial origins of metabolism—a set of core chemical reactions that first powered life on Earth—has identified part of a protein that could provide scientists clues to detecting planets.....»»