Articles tagged with Sulfur
Researchers developed an automated method to create 3D images of leaked gas clouds, enabling precise location, volume, and concentration determination. This technology can provide early leak warnings, assess risk, or determine the best way to fix leaks in large facilities with stored toxic chemicals.
A team of researchers has confirmed that a volcanic eruption in 1628 B.C. was not Thera but Alaskan volcano Aniakchak II, helping to narrow down the potential dates for the Thera eruption's occurrence between 1611 B.C., 1562-1555 B.C. and 1538 B.C.
New research links high levels of stratospheric sulfur to the Chicxulub impact, which ignited widespread fires and global cooling. The unique fingerprints in sulfur aerosols provide direct evidence for catastrophic climate change and cooling.
Researchers in Acadia National Park found that regulations reducing atmospheric sulfur have led to a partial recovery of algae ecosystems, despite ongoing climate change impacts. Clear-water lakes like Jordan Pond are more sensitive to warming than brown-water lakes like Seal Cove Pond, leading to slower recovery rates.
Researchers at Stanford University developed an electrochemical sulfur oxidation process that can transform wastewater into valuable materials. The technology has the potential to power renewable energy-powered wastewater treatment, creating drinkable water.
Researchers at Drexel University have developed a stable sulfur cathode that functions in a commercially viable carbonate electrolyte, enabling Li-S batteries with three times the capacity of Li-ion batteries and lasting over 4,000 recharges. This breakthrough paves the way for more sustainable battery alternatives.
Researchers developed a novel coating material based on methylene blue dye to mitigate the polysulfide shuttling effect in lithium-sulfur batteries, improving their durability and electrochemical performance. This breakthrough could lead to the widespread adoption of sustainable energy storage systems.
Researchers develop small-molecule serial femtosecond crystallography, enabling precise analysis of complex materials. The technique reveals accurate atomic structures of previously unsolvable compounds.
Researchers from Korea Maritime & Ocean University found that using LPG as a marine fuel can reduce annual fuel consumption by 7.5-10.4%, fuel cost by 8.8-25.9%, and carbon dioxide emissions by 10-14%. The study also highlights the potential for promoting LPG as an eco-friendly alternative to traditional fuels.
Researchers detected emerging synthetic antioxidants in e-waste recycling dust, including hindered phenol and sulfur antioxidants. The study highlights the need for further research on their environmental behaviors and toxicities.
Researchers discovered a new family of prenylated volatile sulfur compounds responsible for the characteristic skunky smell of cannabis. The findings suggest these compounds could have medicinal properties and are being investigated further.
A new study suggests that atmospheric conditions in the stratosphere pose a challenge to generating sulfuric acid, a crucial component of a proposed geoengineering strategy to mitigate climate change. Researchers found that solar radiation causes HOSO2 to quickly photolyse, breaking it down into harmful sulfur dioxide, which may reduce...
Researchers created a portable electronic nose that can detect the stink of wastewater treatment plants with near-human accuracy. The device is combined with a drone to measure air quality and predict odor intensity, producing real-time maps for management.
Researchers found that bacteria living inside plant roots trigger sulfur metabolism to produce antioxidants that detoxify the plant from salt-induced damage. This discovery could lead to breakthrough technologies for saline agriculture and improve food production in arid lands.
Penn State researchers have received a $2.9 million grant to tackle challenges related to lithium-sulfur batteries, which could provide double the energy density and cycle life of current technology. The project aims to address issues such as polysulfide dissolution and dendrite formation to improve battery stability.
Researchers analyzed samples of paraffinic oils from the western Siberian Basin, Russia, to understand their characteristics. The study found that these oils are primarily composed of saturated hydrocarbons and have low sulfur content.
Marine plankton emit sulfur that can form clouds, but existing clouds absorb most of it, reducing cloud formation. The discovery challenges current understanding and may impact climate change predictions.
A new study from Scripps Research Institute reveals a previously unrecognized way that nature solves the problem of persulfide instability, through the generation of helpful enzymes. The discovery provides researchers with a new method for generating potentially important sulfur-based molecules in the lab.
Researchers at Penn State have imaged a protein facilitating RNA modification, allowing them to reconstruct the process. The study reveals how a chemical tag is added to tRNA, improving its ability to translate messenger RNA into proteins.
Researchers at Monash University have developed a new type of battery that can store more energy than traditional lithium-ion batteries. By adding sugar to the positive electrode, they were able to stabilize the battery and increase its lifespan by up to 1000 cycles.
Researchers at UEA developed a new method for measuring carbon uptake by Arctic plants, providing insights into the impact of climate change on this process. This study reduces uncertainties in previous assessments and investigates the influence of environmental factors on carbon uptake.
Researchers have found that purple sulfur bacteria in a modern-day lake can fix nitrogen very efficiently, even at low molybdenum concentrations. This discovery provides the first indication that these bacteria may have played a significant role in nitrogen fixation in the Proterozoic ocean.
Researchers developed a simple and fast method to analyze sulfur isotopes, enabling the detection of seawater intrusion into freshwater systems. This method can help investigate chemical changes in environments affected by sea level rise.
Researchers have determined that a massive star, rather than the young sun, was responsible for the split in oxygen isotopes found in the sun and other planets. The study, led by Lionel Vacher, used an unusual meteorite named Acfer 094 to gain insight into the solar system's past.
A study suggests that the Toba supereruption led to regional variations in climate impacts, with cooling predictions ranging from 4°C to 10°C in the Northern Hemisphere. Early human populations in these regions thrived despite the eruption's severity, according to independent archaeological evidence.
Researchers at the University of Cologne discovered a rare tripartite symbiosis between a ciliate, a green alga and a previously unknown purple bacterium. The genome of the purple bacterium is greatly reduced, suggesting it relies on photosynthesis for survival.
The Rice University engineers have unveiled the process of MoS2's synthesis in a chemical vapor deposition (CVD) furnace. Their simulations showed that it takes three steps to deposit an atomically thin lattice onto a surface, involving sublimation, reaction with sulfur atoms, and crystallization.
Researchers analyzed ice core data from Greenland to understand the relationship between sulfur dioxide emissions and sulfate aerosols. They found that sulfate levels have declined more slowly than sulfur dioxide emissions, especially in wintertime, due to a reaction that partially mitigates reductions.
Researchers at Flinders University have developed a new sustainable insulation material using waste cooking oil, sulfur, and wool offcuts, offering promising energy savings for property owners and tenants. The composite boasts low flammability and biodegradable properties, aligning with the UN's Sustainable Development Goals.
Researchers discovered that green sulfur bacteria exploit quantum mechanics to move energy between pathways depending on oxygen presence. This phenomenon, vibronic mixing, helps the bacterium conserve energy while avoiding damage from oxygen.
A new study questions the use of pyrite as a proxy for reconstructing oxygen levels in Earth's oceans. Researchers found that signals from pyrite in sediments are more controlled by sea level changes in shallow waters than other factors. This challenges current methods for understanding ocean chemistry and oxygenation.
Volcanic rock samples collected during NASA's Apollo missions hold clues to the Moon's iron core formation and magma ocean crystallization, a new analysis found. The study used SIMS technique to analyze sulfur isotope composition in Apollo 15 and 17 samples.
A team of scientists found that sulfur metabolism plays a crucial role in the transition from single-celled to multicellular organisms. By manipulating sulfur levels, they were able to induce or prevent the formation of multicellular aggregates in the slime mold Dictyostelium discoideum. This discovery has significant implications for ...
Scientists from GIST have developed a novel catalyst material that improves the longevity and performance of lithium-sulfur batteries. The CoC2O4 catalyst enables efficient electric transportation systems, including drones and large-scale energy storage devices.
Scientists from RUDN University have synthesized three new chalcogenides using iodine-based high-temperature synthesis, resulting in rare rhombic system crystal structures. The new compounds were obtained using nickel, gallium, indium, sulfur, and tellurium, showcasing the key role of iodine in their formation.
Researchers at Immanuel Kant Baltic Federal University developed a method for creating thin films using reactive pulsed laser deposition. The resulting films reduced friction by over 10 times, with applications in industries like space technology and instrument building.
A team from the University of Washington has used a robust model of Venus' atmosphere to reinterpret radio telescope observations and conclude that phosphine was unlikely detected. The data instead suggest sulfur dioxide as the source of the signal, which is consistent with what astronomers know of the planet's environment.
Researchers reconstruct ancient Sunset Crater eruption, revealing high-explosivity phase with ash reaching 20km high. The study highlights the importance of carbon dioxide in volcanic eruptions and its potential impact on global climate.
Scientists at Tokyo Institute of Technology synthesized a novel material with negative thermal expansion properties, which may help avoid damage to composite materials. The material exhibits both phase transition and framework-type mechanisms, providing a potential solution for the overheating problem in composite materials.
Researchers at UNIGE have identified sulfur molecules that can effectively block the uptake of SARS-CoV-2 viruses by cells. The team found inhibitors up to 5,000 times more effective than existing treatments, providing a promising lead for developing new antivirals.
A novel, one-step process converts sulfur dioxide to pure sulfur at lower temperatures than traditional methods, reducing waste and energy consumption. This breakthrough technology has the potential to replace existing desulfurization methods and significantly improve environmental outcomes.
A team of astronomers used ALMA to capture radio images of Io during eclipses, showing the direct effect of volcanic activity on its atmosphere. They found that active volcanoes produce 30-50 percent of Io's atmosphere, with potassium chloride also present in volcanic regions.
Researchers found a new microbial pathway producing ethylene, providing a potential avenue for biomanufacturing a common plastic component. The discovery also sheds light on a long-standing mystery about how ethylene is produced in anaerobic soils and points to potential paths to prevent crop damage from high levels of ethylene.
Researchers at Ohio State University have discovered a novel way for bacteria to produce ethylene gas, a crucial chemical in plastics manufacturing. This breakthrough could lead to new methods for producing plastics sustainably, replacing fossil fuels.
A research team from Technical University of Munich has developed a synthesis process that drastically increases the activity of catalysts for removing sulfur from crude oil. The new process uses concentrated hydrochloric acid to improve catalytic performance.
Scientists at ESRF discover new type of critical point in liquid sulfur, allowing for better understanding of liquid-to-liquid transitions and their applications. This breakthrough could open doors to studying the complexity of other important systems like water.
Researchers developed a model that suggests large volcanic intrusions were responsible for major changes in oceanic sulfate over the past 120 million years. The study found that these events were coupled with changes in sulfur burial efficiency and led to significant increases in seawater sulfate concentrations.
A new study reveals that fertilizer and pesticide applications on croplands are now the primary source of sulfur emissions, outpacing fossil fuel emissions. This increase in sulfur use has detrimental effects on agricultural soils and downstream waters, similar to acid rain.
Research suggests that fertilizer and pesticide applications on croplands are the largest source of sulfur in the environment, exceeding peak levels seen during acid rain days. This increase poses risks to mercury levels, soil degradation, and asthma rates in agricultural areas.
Researchers at Tokyo Institute of Technology found that anthropogenic sources account for much of the missing source of OCS in the atmosphere. Their study provides better context for estimating global photosynthesis using OCS dynamics.
Researchers developed a novel technology to create a sulfur-containing polymer (SCP) film with excellent environmental stability and chemical resistance, exhibiting a high refractive index of 1.9 while being fully transparent in the entire visible range.
Researchers at the University of California, Irvine have discovered a key mechanism in breaking down nitrogen gas, a crucial step towards developing more efficient and sustainable methods. The breakthrough could lead to cheaper and more energy-efficient ways to produce fertilizers and alternative fuels.
Researchers at the University of Liverpool have developed new sulfur polymers that provide an environmentally friendly alternative to traditional petrochemical-based plastics. The polymers, which can be recycled easily, exhibit shape-memory effects and can be self-repaired within minutes, opening up potential applications in soft robot...
Scientists at DGIST propose novel host structure called 'platelet ordered mesoporous silica' to trap lithium polysulfides and improve battery stability. The silica structure retains more sulfur, resulting in greater capacity retention and stability over 2000 cycles.
Scientists at Flinders University have developed a new method to create sustainable building blocks, including bricks made from recycled PVC and organic waste. The 'green' bricks can be repeatedly ground up and recycled, reducing waste and promoting a circular economy.
Researchers at Rice University have created a 2D Janus compound that enhances the detection of biomolecules via surface-enhanced Raman spectroscopy. The nonmetallic material boosts signal strength, reducing background noise and improving detection limits.
Researchers at the University of Texas at Austin have developed a method to stabilize lithium-sulfur batteries, extending their cycle life by four times. This breakthrough enables more environmentally sustainable and cost-effective battery production, with potential applications in electric vehicles and renewable energy.
Researchers discovered that marine bacteria process a key chemical called dimethylsulfoniopropionate (DMSP) in
Researchers have developed Fe <sub>1-x</sub> S-decorated mesoporous carbon spheres as a nanoreactor for lithium-sulfur battery cathodes, showing excellent polysulfide catalytic activity and cyclic stability. The design strategy provides a new protocol for building high-capacity and long-cycle rechargeable batteries.
Researchers at UC Santa Cruz have developed a new method for separating the stereoisomers of an oxidized amino acid, opening up new opportunities for studying its role in biological processes. The method uses supercritical fluid chromatography to purify the stereoisomers with high purity.