Monolithic nanocarbon catalysts boot dihydrogen-sulfide selective oxidation
Ultra-deep removal of H2S is important in petroleum refining, natural gas purification and coal chemical industry. However, the industrial catalysts for continuous H2S selective oxidation show poor activity and stability, especially on feed gas conta.....»»
Why canned wine can smell like rotten eggs while beer and Coke are fine
Sulfur dioxide in the wine reacts with the aluminum to make hydrogen sulfide. Enlarge (credit: BackyardProduction/Getty Images) True wine aficionados might turn up their noses, but canned wines are growing in popularity.....»»
Flat faces and difficulty breathing: How pet trends have harmed animal health—and what we can we do about it
Dogs come in all shapes and sizes. We've molded some of them to have large protruding eyes, sloping backs and shortened legs through selective breeding......»»
Self-adjusted reaction pathway enables efficient oxidation of aromatic C-H bonds over Co@Y catalyst
The selective oxidation of aromatic C-H bonds has drawn significant attention in both industrial and fine chemistry due to its crucial role in converting readily- and cheaply-available aromatic hydrocarbons into high-value-added oxygenated products f.....»»
Magnetism boosts hydrogen production in model catalysts
Researchers at the University of Twente have shown how to improve the efficiency of hydrogen production in an experimental setup. They showed that the magnetic order of the molecules plays a critical role......»»
Palladium nanocluster catalyst supports highly efficient and regioselective hydrogenation of epoxides
Alcohols are widely applied in life sciences and the chemical industry. Selective hydrogenation of epoxides using hydrogen molecules as a reductant is considered to be one of the most facile and atom-economical strategies for alcohol synthesis. Howev.....»»
Bias distribution and regulation in photoelectrochemical overall water-splitting cells
The photoelectrochemical (PEC) overall water-splitting reaction (OWS) has been fully developed in the past decade, especially in new catalysts, characterization methods and reaction mechanisms. Compared with the hydrogen evolution reaction (HER), the.....»»
Hubble peers at pair of closely interacting galaxies
This image from the NASA/ESA Hubble Space Telescope features Arp 72, a very selective galaxy group that only includes two galaxies interacting due to gravity: NGC 5996 (the large spiral galaxy) and NGC 5994 (its smaller companion, in the lower left o.....»»
Operando spectroscopy provides a window on water oxidation
Iridium oxide catalysts are effective for water oxidation making them very attractive for green technologies. A team including researchers from SANKEN (The Institute of Scientific and Industrial Research) at Osaka University has therefore taken the c.....»»
Study describes zinc oxide nanoparticle strategy for inactivation of multidrug-resistant bacteria
An article published in the Journal of Environmental Chemical Engineering describes a possible strategy for promoting selective inhibition of multidrug-resistant bacteria, which are increasingly abundant owing to the indiscriminate use of antibiotics.....»»
Researchers investigate the surface extraction of platinum catalysts in alkaline media
Platinum (Pt) electrodes are crucial for clean power technologies like hydrogen fuel cells and electrolysis. However, the surface oxidation that occurs during such processes degrades catalyst performance and stability......»»
Research demonstrates anatase supported Ni single-atom catalysts for propane dehydrogenation
Propylene is one of the most important petrochemical raw materials, ranging second after ethylene. To meet the ever-increasing demand, alternative technologies for propylene production are in urgent need, among which the propane dehydrogenation (PDH).....»»
Novel silica-based adsorbent helps selective separation of strontium
Prof. Huang Qunying's team from the Hefei Institutes of Physical Science of the Chinese Academy of Sciences, in collaboration with Prof. Ning Shunyan's team from South China University, developed a novel silica-based adsorbent for the highly selectiv.....»»
Team modulates electronic state of single-atom catalysts by CO molecular decoration for efficient methane conversion
Direct methane conversion has advantages such as low energy consumption, fewer processes, and better economics. However, it is difficult to activate methane at room temperature due to the high dissociation energy of C-H bonds of methane. Additionally.....»»
Enhancing safety in green adipic acid synthesis: The role of EDTA stabilizer and microchannel flow technology
Adipic acid, a fundamental component in the manufacture of chemical fibers, nylon 66, engineering plastics, and various pharmaceutical, food, and chemical products, is commonly synthesized through a green process involving the oxidation of cyclohexen.....»»
Research team introduces superaerophobic three-dimensional nickel catalysts for accelerated water electrolysis
Water electrolysis process is a system that produces hydrogen by electrolyzing water. It is an eco-friendly technology that can produce hydrogen fuel, a future energy source, without emitting environmental pollutants, but its limitations include low.....»»
Recyclable reagent and sunlight convert carbon monoxide into methanol
Scientists at the U.S. Department of Energy's (DOE) Brookhaven National Laboratory and the University of North Carolina Chapel Hill (UNC) have demonstrated the selective conversion of carbon dioxide (CO2) into methanol using a cascade reaction strate.....»»
New method uses enantioselective nickel catalysis to synthesize multifunctional chiral alkylboron compounds
National University of Singapore (NUS) chemists have conceived a strategy using chiral nickel catalysts to facilitate the carboboration of alkenes, generating high-value enantioenriched alkylboronic esters......»»
Regulating atomic Fe-Rh site distance for efficient oxygen reduction reaction
In a study published in the journal Science China Chemistry, the authors systematically design and investigate the site-distance effect of Fe-Rh atom catalysts (Fe-Rhx@NC) supported by N-doped graphene for ORR by an integrated theoretical and experim.....»»
Electronic perturbation-promoted interfacial pathway for facile C–H dissociation
Pt-based catalysts have been extensively employed in catalytic propane dehydrogenation (PDH) processes, playing a crucial role in propylene production. However, monometallic Pt catalysts often exhibit inferior propylene selectivity due to the hydroge.....»»
Selective Forgetting Can Help AI Learn Better
Erasing key information during training allows machine learning models to learn new languages faster and more easily......»»