Current Chemical Reaction News and Events

Current Chemical Reaction News and Events, Chemical Reaction News Articles.
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Amination strategy improves efficiency of CO2 electrocatalytic reduction
A research team led by Prof. LIU Licheng from the Qingdao Institute of Bioenergy and Bioprocess Technology (QIBEBT) of the Chinese Academy of Sciences (CAS) proposed a two-step amination strategy to regulate the electronic structure of M-N/C catalysts (M=Ni, Fe, Zn) and enhance the intrinsic activity of CO2 electrocatalytic reduction. (2021-02-19)

Origin of life -- Did Darwinian evolution begin before life itself?
A study done by Ludwig-Maximilians-Universitaet (LMU) in Munich physicists demonstrates that fundamental characteristics of polymeric molecules, such as their subunit composition, are sufficient to trigger selection processes in a plausible prebiotic setting. (2021-02-19)

Giving oxygen to the question of air quality
Volatile alkanes can rapidly acquire oxygen atoms in a free radical chain reaction, a process significant for fuel combustion and air pollution. (2021-02-18)

Ultrafast electron dynamics in space and time
Often depicted as colourful balloons or clouds, electron orbitals provide information on the whereabouts of electrons in molecules, a bit like fuzzy snapshots. In order to understand the exchange of electrons in chemical reactions, it is not only important to know their spatial distribution but also their motion in time. Scientists from Julich, Marburg, and Graz have now made huge progress in this direction: They successfully recorded orbital images with an extremely high temporal resolution. (2021-02-18)

Modeling a better catalyst for PIBSAs
Polyisobutenyl succinic anhydrides (PIBSAs) are important for the auto industry because of their wide use in lubricant and fuel formulations. New research led by the Computer-Aided Nano and Energy Lab (CANELa) at the University of Pittsburgh, in collaboration with the Lubrizol Corporation, builds a deeper understanding of the catalyst used to synthesize PIBSAs. (2021-02-17)

Hydrogen peroxide, universal oxidizing agent, high-efficiency production by simple process
The Korea Institute of Science and Technology(KIST) announced that a joint research team developed a platinum-gold alloy catalyst for hydrogen peroxide production based on a computer simulation. Hydrogen peroxide selectivity can be increased to 95% by using this catalyst, compared with only 30-40% for a palladium catalyst, which indicates that mostly hydrogen peroxide on the developed Pt-Au catalyst can be produced with a small amount of water. (2021-02-16)

The water surface is a fantastic place for chemical reactions
Using an advanced technique, scientists from the RIKEN Cluster for Pioneering Research have demonstrated that a chemical reaction powered by light takes place ten thousand times faster at the air-water interface--what we usually call the water surface--than in the bulk of the water, even when the light has equivalent energy. This finding could help our understanding of the many important chemical and biological processes that take place at the water surface. (2021-02-15)

Researchers measure temperature effect of plasmon in chemical reactions using organic "sensors"
The researchers of TPU together with their colleagues from Russian and foreign scientific centers have found a way to estimate the temperature of a chemical reaction activated by pseudo-particles - plasmons. Two organic molecules served as ultra-small sensors or thermometers. (2021-02-15)

Producing more sustainable hydrogen with composite polymer dots
Hydrogen for energy use can be extracted in an environmentally friendly way from water and sunlight, using photocatalytic composite polymer nanoparticles developed by researchers at Uppsala University. In laboratory tests, these 'polymer dots' showed promising performance and stability alike. The study has been published in the Journal of the American Chemical Society. (2021-02-12)

Combination of pine scent and ozone as super source of particulate emissions
Scientists have managed to figure out why conifer forests produce so many fine particles into the atmosphere. Aerosol particles are particularly abundant when ?-pinene, the molecule responsible for the characteristic pattern of pine trees reacts with atmospheric ozone. (2021-02-11)

Industrial compound gets eco-friendly reaction
Nagoya University scientists have developed a chemical reaction that produces high yields of a compound used in a wide variety of industries, without needing high temperatures or toxic catalysts. The approach offers a practical and sustainable solution for industrial (meth)acrylate (= acrylate or methacrylate) ester synthesis. (2021-02-10)

Metabolism: Researchers first to shed light on structure of huge enzyme complex
A new method has enabled the natural structure of particularly large and complex enzymes to be revealed. Scientists at Martin Luther University Halle-Wittenberg (MLU) and TU Berlin have published their findings in the journal Cell Reports. They investigated a multi-enzyme complex that plays an essential role in metabolism and have discovered that it functions differently than previously thought. This will help scientists better understand certain diseases. (2021-02-10)

Study reveals platinum's role in clean fuel conversion
Scientists at the US Department of Energy's Brookhaven National Laboratory, Stony Brook University (SBU), and other collaborating institutions have uncovered dynamic, atomic-level details of how an important platinum-based catalyst works in the water gas shift reaction. The experiments provide definitive evidence that only certain platinum atoms play an important role in the chemical conversion, and could therefore guide the design of catalysts that use less of this precious metal. (2021-02-10)

Biomarkers that could help determine who's at risk for severe COVID-19 symptoms
One of the many mysteries still surrounding COVID-19 is why some people experience only mild, flu-like symptoms, whereas others suffer life-threatening respiratory problems, vascular dysfunction and tissue damage. Now, researchers reporting in ACS' Analytical Chemistry have used a combination of metabolomics and machine learning to identify possible biomarkers that could both help diagnose COVID-19 and assess the risk of developing severe illness. (2021-02-10)

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 from Japan demonstrate high selectivity formation of N,N-acetals from reactions between 2-aminobenzamide and various diketones in presence of bis(imidazoline)-phosphoric acid catalyst and look into the possible mechanism, opening doors to facile synthesis of novel pharmaceutical drugs. (2021-02-09)

Researchers identify a new molecular mechanism related to severe anaphylaxis
In a study led by researchers of the University of Barcelona and IDIBAPS, researchers analyzed the mutation of a gen detected in a patient who suffered from recurrent anaphylactic shocks caused by the allergy to paper wasp venom (Polistes dominula). The results, published in the Journal of Allergy and Clinical Immunology, revealed a new molecular mechanism that can control the degree of severity in an anaphylactic reaction. (2021-02-09)

Chemists developed a simplified method for pharmaceutical compounds synthesizing
A team of chemists from Immanuel Kant Baltic Federal University and Saint Petersburg State University developed a simple and efficient method to synthesize tetrahydroisoquinolines--important organic molecules for drug discovery. The method consists of just three steps. (2021-02-09)

Chemists identified necessary conditions for successful synthesis of small molecules
A team of researchers from Immanuel Kant Baltic Federal University and Saint Petersburg State University identified the factors that affect the speed of synthesis of organic molecules consisting of several heterocycles. According to the team, accurate selection of reagents and reaction conditions can help efficiently obtain compounds used in the pharmaceutical industry. (2021-02-09)

Insights into lithium metal battery failure open doors to doubling battery life
Researchers led by Prof. CUI Guanglei from the Qingdao Institute of Bioenergy and Bioprocess Technology (QIBEBT) of the Chinese Academy of Sciences (CAS) have identified what causes lithium metal batteries (LMBs) to ''self-destruct'' and proposed a way to prevent it. (2021-02-08)

New synthetic route for biofuel production
A German-Chinese research team has found a new synthetic route to produce biofuel from biomass. The chemists converted the substance 5-hydroxymethylfurfural (HMF) produced from biomass into 2,5-dimethylfuran (DMF), which could be suitable as a biofuel. Compared to previous methods, they achieved a higher yield and selectivity under milder reaction conditions. (2021-02-08)

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 (i.e zinc and palladium/nickel) working in synergy. Researchers from the Martin group at ICIQ have delved into the Negishi cross-coupling of aryl esters using nickel catalysis to understand how this reaction works at the molecular level and how to improve it. The results have been published in Nature Catalysis. (2021-02-08)

Establishment testing standards for particulate photocatalysts in solar fuel production proposed
Recently, an international research team initiated the establishment of international efficiency accreditation and testing protocols for particulate photocatalysts toward solar fuel production. (2021-02-05)

A single-molecule guide to understanding chemical reactions better
Scientists at Tokyo Institute of Technology (Tokyo Tech) report measurement of electrical conductivity of single DNA molecules as a way of monitoring the formation of double-stranded DNA on a gold surface. In their latest paper, they investigate the time evolution of the reaction and report findings not observed previously, demonstrating the suitability of the single-molecule approach in elucidating reaction pathways and exploring novel chemical processes. (2021-02-04)

Mysterious organic scum boosts chemical reaction efficiency, may reduce chemical waste
Chemical manufacturers frequently use toxic solvents such as alcohols and benzene to make products like pharmaceuticals and plastics. Researchers are examining a previously overlooked and misunderstood phenomenon in the chemical reactions used to make these products. This discovery brings a new fundamental understanding of catalytic chemistry and a steppingstone to practical applications that could someday make chemical manufacturing less wasteful and more environmentally sound. (2021-02-04)

Hierarchical dynamics
Researchers investigate signal transfer in proteins across multiple time scales (2021-02-03)

Novel photocatalyst effectively turns carbon dioxide into methane fuel with light
Decarbonising has become a prioritised mission in many countries and the science community is working on the ''carbon capture'' technologies. If the captured carbon dioxide could be converted into energy, then it would be killing two birds with one stone. A joint research team led by City University of Hong Kong (CityU) has developed a new photocatalyst which can produce methane gas (CH4) selectively and effectively from carbon dioxide using sunlight and mimicking photosynthesis. (2021-02-02)

A show of force: Novel polymer that toughens up and changes color upon mechanical stress
Scientists at Tokyo Institute of Technology (Tokyo Tech) developed a polymer whose properties change markedly after being exposed to mechanical stress. In bulk form, the mechano-responsive polymer shows color changing, fluorescence, and self-strengthening abilities even under simple compression or extension. These fundamental findings are unprecedented in the field of mechanochemistry and could pave the way for numerous applications in materials science. (2021-02-02)

Brightening the future of semiconductor-based photocatalytic processes
A collaboration between the Pericàs group with Prof. Timothy Noël and Dr. Paola Riente at the Eindhoven University of Technology (TU/e, The Netherlands), has crystallised in a Nature Communications paper where they provide key insight into the chemical nature of the true photocatalyst involved in the Bi2O3-driven atom-transfer radical addition (ATRA) reaction. (2021-02-01)

New weapon for inflammation
Flinders University researchers have discovered a new anti-inflammatory role for well-known blood clot protein fibrinogen, which could support targeted new treatments for kidney, heart and other common diseases. The study in Redox Biology describes how fibrinogen can be protective against hypochlorite - a chemical generated by the body during inflammation - and so act as a kind of antioxidant in blood plasma. (2021-01-31)

Synthesizing valuable chemicals from contaminated soil
Scientists at Johannes Gutenberg University Mainz (JGU) and ETH Zurich have developed a process to produce commodity chemicals in a much less hazardous way than was previously possible. In the current issue of Science, the researchers report that they have been able to utilize electrolysis, i.e., the application of an electric current, to obtain chemicals known as dichloro and dibromo compounds, which can then be used to synthesize commodity chemicals. (2021-01-29)

New catalyst moves seawater desalination, hydrogen production closer to commercialization
Seawater is abundant and cheap, making it a tempting resource to meet the world's growing need for clean drinking water and carbon-free energy. Now researchers from the University of Houston have reported a new catalyst that can be made quickly and inexpensively, bringing the technology closer to commercial reality. (2021-01-28)

Chemists settle battery debate, propel research forward
A team of researchers led by chemists at Brookhaven National Laboratory has identified new details of the reaction mechanism that takes place in batteries with lithium metal anodes. The findings are a major step towards developing smaller, lighter, and less expensive batteries for electric vehicles. (2021-01-28)

Researchers reveal in-situ manipulation of active Au-TiO2 interface
An international joint research team from the Shanghai Advanced Research Institute of the Chinese Academy of Sciences, along with Zhejiang University and the Technical University of Denmark, reported an in-situ strategy to manipulate interfacial structure with atomic precision during catalytic reactions. (2021-01-28)

Ultra-absorptive nanofiber swabs could improve SARS-CoV-2 test sensitivity
Rapid, sensitive diagnosis of COVID-19 is essential for early treatment, contact tracing and reducing viral spread. However, some people infected with SARS-CoV-2 receive false-negative test results, which might put their and others' health at risk. Now, researchers reporting in ACS' Nano Letters have developed ultra-absorptive nanofiber swabs that could reduce the number of false-negative tests by improving sample collection and test sensitivity. (2021-01-27)

How climate caprices can trigger plants
Climate change may challenge organismal responses through not only extreme cues. An uncommon combination of benign cues - warm and short days - can also trigger reactions such as misregulations of leaves. (2021-01-27)

Well connected through amides
Linking molecular components through amide bonds is one of the most important reactions in research and the chemical industry. In the journal Angewandte Chemie, scientists have now introduced a new type of reaction for making amide bonds. Called an ASHA ligation, this reaction is fast, efficient, works under mild aqueous conditions, and is broadly applicable. (2021-01-27)

A mild way to upcycle plastics used in bottles into fuel and other high-value products
Plastic is ubiquitous in people's lives. Yet, when plastic-containing items have fulfilled their missions, only a small amount is recycled into new products, which are often of lower quality compared to the original material. And, transforming this waste into high-value chemicals requires substantial energy. Now, researchers reporting in ACS' JACS Au have combined a ruthenium-carbon catalyst and mild, lower-energy reaction conditions to convert plastics used in bottles and other packaging into fuels and chemical feedstock. (2021-01-27)

Princeton team advances new route to chemically recyclable plastics
As the planet's burden of rubber and plastic trash rises unabated, scientists increasingly look to the promise of closed-loop recycling to reduce waste. A team of researchers at Princeton's Department of Chemistry announces the discovery of a new polybutadiene molecule - from a material known for over a century and used to make common products like tires and shoes - that could one day advance this goal through depolymerization. (2021-01-25)

Photocatalytic reaction in the shadow
Photoelectrochemical water splitting is a promising technology to convert solar energy into value-added fuels. Theoretically, silicon-based metal-insulator-semiconductor (MIS) photocathode can achieve high efficiency. However, the parasitic light absorption caused by catalysts and metals, as well as the lack of metals to form a large band-offset with p-Si, severely limit their performances. Scientists based in China have demonstrated an illumination-reaction decoupled MIS photocathode using n-Si to prevent the parasitic light absorption while establishing a large band-offset. (2021-01-25)

Boosting the efficiency of carbon capture and conversion systems
Researchers at MIT have developed a method to boost the performance of carbon capture systems that use catalytic surfaces to enhance the rates of carbon-sequestering electrochemical reactions. (2021-01-25)

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