Current Sulfur News and Events | Page 2

Current Sulfur News and Events, Sulfur News Articles.
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Liquid sulfur changes shape and goes critic under pressure
Scientists from the ESRF, together with teams from CEA and CNRS/Sorbonne Université, have found the proof for a liquid-to-liquid transition in sulfur and of a new kind of critical point ending this transition. Their work is published in Nature. (2020-08-19)

Oil-soluble transition metal-based catalysts tested for in-situ oil upgrading
The results of the study showed that the good catalytic properties of the new transition metal catalysts, as well as their low cost and easy accessibility, make them a potential solution in the aquathermolysis reaction and heavy oil recovery. (2020-08-11)

Agriculture replaces fossil fuels as largest human source of sulfur to the environment
Historically, coal-fired power plants were the largest source of reactive sulfur, a component of acid rain, to the biosphere. A new study shows that fertilizer and pesticide applications to croplands are now the most important source of sulfur to the environment. (2020-08-10)

Agriculture replaces fossil fuels as largest human source of sulfur in the environment
New research identifies fertilizer and pesticide applications to croplands as the largest source of sulfur in the environment -- up to 10 times higher than the peak sulfur load seen in the second half of the 20th century, during the days of acid rain. (2020-08-10)

Scientists identify missing source of atmospheric carbonyl sulfide
Researchers at Tokyo Institute of Technology (Tokyo Tech) report that anthropogenic sources of carbonyl sulfide (OCS), not just oceanic sources, account for much of the missing source of OCS in the atmosphere. Their findings provide better context for estimates of global photosynthesis (taking up CO2) using OCS dynamics. (2020-08-06)

Sulfur-containing polymer generates high refractive index and transparency?
Researchers reported a novel technology enhancing the high transparency of refractive polymer film via a one-step vapor deposition process. The sulfur-containing polymer (SCP) film produced by Professor Sung Gap Im's research team at KAIST's Department of Chemical and Biomolecular Engineering has exhibited excellent environmental stability and chemical resistance, which is highly desirable for its application in long-term optical device applications. (2020-08-04)

New evidence for a dynamic metallocofactor during nitrogen gas reduction
A key mystery about the gas comprising most of our atmosphere is closer to being solved following a discovery by University of California, Irvine biologists. Their findings are the first step in understanding the biological mechanism for breaking down nitrogen gas. Besides yielding groundbreaking knowledge, the information holds promise for developing environmentally friendly and cheaper ways to make products such as fertilizer and fuel. The team's research has just been published in the journal Science. (2020-07-16)

Geoengineering's benefits limited for apple crops in India
Geoengineering - spraying sulfur dioxide into the atmosphere to combat global warming - would only temporarily and partially benefit apple production in northern India, according to a Rutgers co-authored study. But abruptly ending geoengineering might lead to total crop failure faster than if geoengineering were not done, according to the study - believed to be the first of its kind - in the journal Climatic Change. (2020-07-15)

FSU news: Scientists discover heavy element chemistry can change at high pressures
An international team of researchers has demonstrated how curium -- element 96 in the periodic table and one of the last that can be seen with the naked eye -- responds to the application of high pressure created by squeezing a sample between two diamonds. (2020-07-15)

Review of progress towards advanced Lithium-sulfur batteries
How should one design porous carbon materials for advanced Li-S batteries cathodes? What electrolytes are extensively studied for high-safety Li-S batteries? In a paper published in NANO, a group of researchers from Qingdao, China have reviewed the recent progresses in sulfur/carbon cathode materials and high safety electrolytes towards advanced Li-S batteries. Some potential issues and possible developmental directions are also discussed. (2020-07-13)

Looking at linkers helps to join the dots
Understanding the optimal process for fabricating coupled nanocrystal solids could help researchers to improve optoelectronics devices. (2020-07-09)

New biomaterial could shield against harmful radiation
Northwestern University researchers have synthesized a new form of melanin enriched with selenium. Called selenomelanin, this new biomaterial shows extraordinary promise as a shield for human tissue against harmful radiation. (2020-07-08)

A chemical cocktail of air pollution in Beijing, China during COVID-19 outbreak
Air pollution during the COVID-19 lockdown in Beijing was mainly due to different chemical responses of primary and secondary aerosols to changes in anthropogenic emissions. (2020-07-07)

How does Earth sustain its magnetic field?
Life as we know it could not exist without Earth's magnetic field and its ability to deflect dangerous ionizing particles. It is continuously generated by the motion of liquid iron in Earth's outer core, a phenomenon called the geodynamo. Despite its fundamental importance, many questions remain unanswered about the geodynamo's origin. New work examines how the presence of lighter elements in the predominately iron core could affect the geodynamo's genesis and sustainability. (2020-07-06)

Process for 'two-faced' nanomaterials may aid energy, information tech
A team led by the Department of Energy's Oak Ridge National Laboratory used a simple process to implant atoms precisely into the top layers of ultra-thin crystals, yielding two-sided structures with different chemical compositions. The resulting materials, known as Janus structures after the two-faced Roman god, may prove useful in developing energy and information technologies. (2020-06-26)

Exciting new developments for polymers made from waste sulfur
Researchers at the University of Liverpool are making significant progress in the quest to develop new sulfur polymers that provide an environmentally friendly alternative to some traditional petrochemical based plastics. (2020-06-23)

Dimethylsulfoniopropionate concentration in coral reef invertebrates
New research highlights the effect of benthic assemblages on the sulfur metabolism of coral and giant clam species. The research was conducted at CRIOBE and ENTROPIE research units, with the collaboration of the Swire institute of Marine Science of The University of Hong Kong (SWIMS, HKU), Paris-Saclay UVSQ University, The Cawthron Institute (New Zealand) and The University of French Polynesia. The findings were recently published in the journal Scientific Reports. (2020-06-23)

Warburg effect: Sugar-tagging helps drug compounds to target human prostate cancer cells
Scientists of Far Eastern Federal University (FEFU), together with German and Russian colleagues, have developed a lead compound to fight chemotherapy-resistant prostate cancer. The original design comes out as scientists combine biologically active molecules from the chemically modified pigment of sea urchins with glucose molecules to deliver the active drug substance inward the tumor cells. A related article recently was published in Marine Drugs. (2020-06-11)

Researchers advance fuel cell technology
Washington State University researchers have made a key advance in solid oxide fuel cells (SOFCs) that could make the highly energy-efficient and low-polluting technology a more viable alternative to gasoline combustion engines for powering cars. (2020-06-08)

Breaking the mold: An unusual choice of material yields incredibly long-lasting batteries
Scientists from the Daegu Gyeongbuk Institute of Science and Technology, Korea, develop a novel silica-based cathode for lithium-sulfur batteries, thereby enabling the realization of batteries that can last for over 2000 charge/discharge cycles. The possibility of successfully using the unconventional silica could spark a paradigm shift in rechargeable battery designs. (2020-06-03)

The most common organism in the oceans harbors a virus in its DNA
The most common organism in the world's oceans -- and possibly the whole planet -- harbors a virus in its DNA. This virus may have helped it survive and outcompete other organisms. (2020-05-29)

Bricks made from plastic, organic waste
Revolutionary 'green' types of bricks and construction materials could be made from recycled PVC, waste plant fibres or sand with the help of a remarkable new kind of rubber polymer discovered by Australian scientists. The rubber polymer, itself made from sulfur and canola oil, can be compressed and heated with fillers to create construction materials of the future, say researchers in the Young Chemist issue of Chemistry - A European Journal. (2020-05-26)

2D sandwich sees molecules with clarity
A 2D platform of molybdenum, sulfur and selenium is adept at detecting biomolecules via surface-enhanced Raman spectroscopy. Its nonmetallic nature helps by curtailing background noise. (2020-05-14)

What's Mars made of?
Earth-based experiments on iron-sulfur alloys thought to comprise the core of Mars reveal details about the planet's seismic properties for the first time. This information will be compared to observations made by Martian space probes in the near future. Whether the results between experiment and observation coincide or not will either confirm existing theories about Mars' composition or call into question the story of its origin. (2020-05-13)

USF researchers find human-driven pollution alters the environment even underground
The Monte Conca cave system in Sicily is showing signs of being altered by pollution from above. (2020-05-08)

Next-generation batteries take major step toward commercial viability
A group of researchers in the Cockrell School of Engineering at The University of Texas at Austin has found a way to stabilize one of the most challenging parts of lithium-sulfur batteries, bringing the technology closer to becoming commercially viable. (2020-04-28)

Researchers explore ocean microbes' role in climate effects
A new study shows that 'hotspots' of nutrients surrounding phytoplankton -- which are tiny marine algae producing approximately half of the oxygen we breathe every day -- play an outsized role in the release of a gas involved in cloud formation and climate regulation. (2020-04-23)

Eco-friendly Oxy-CFBC technology to implement stackless power plant
Coal-fired power plants in Korea have been considered as one of the main sources of air pollutants, CO2 and the other precursor materials to ultra fine dusts such as nitrogen oxide, sulfur oxide. Therefore, FEPCRC is developing key technologies for eco-friendly coal-fired stackless power generation without emissions in flue gas. (2020-04-16)

Scientists develop high-performance lithium-sulfur batteries
Recently, research groups led by Prof. LIU Jian and Prof. WU Zhongshuai from the Dalian Institute of Chemical Physics (DICP) of the Chinese Academy of Sciences have developed Fe1-xS-decorated mesoporous carbon spheres as the nanoreactor, which can be applied as lithium-sulfur battery cathode. (2020-04-16)

Livestock and poultry farming should be the future focus of agricultural ammonia emissions control
Livestock and poultry farming is the largest contributor to agricultural ammonia emissions and should be the future focus of agricultural ammonia emissions control. (2020-04-13)

Reducing sulfur dioxide emissions alone cannot substantially decrease air pollution
Due to the reduced emissions of SO2, and considering the high level of NH3 emissions in China, nitrogen dioxide emissions control is more effective in reducing the surface PM2.5 concentration in China. (2020-04-11)

New isomer separation method a boon for research on protein oxidation
Oxidation of the sulfur atom in methionine is an important biomolecular reaction that can have a wide range of biological consequences depending on the context and the protein involved. Chemists at UC Santa Cruz have reported a new method for separation of methionine sulfoxide diastereomers that opens up new opportunities for studying their roles in biological processes. (2020-04-09)

Researchers discover pressure-induced polyamorphism in dense SO2
Recently, a team of Chinese scientists and their collaborators at the Institute of Solid State Physics of the Hefei Institutes of Physical Science examined polyamorphism in the molecular substance SO2. (2020-04-06)

Sulfur 'spices' alien atmospheres
They say variety is the spice of life, and now new discoveries from Johns Hopkins researchers suggest that a certain elemental 'variety' -- sulfur -- is indeed a 'spice' that can perhaps point to signs of life. (2020-04-06)

Reduced off-odor of plastic recyclates via separate collection of packaging waste
Plastic recyclates produced from waste packaging have to meet high sensory requirements in order to be used for new products. Plastic recyclates often have off-odors, some of which have not hitherto been identified. The Fraunhofer Institute for Process Engineering and Packaging IVV has analyzed the sensory properties of post-consumer shopping bags made of low density polyethylene (LDPE) and originating from different collection systems. (2020-03-31)

Common feed ingredient tested safe in bulls
Cattle feeders choose distillers grains in feedlot diets as an inexpensive alternative to corn and soybean meal. But until now, no one had studied the effects of the common feed ingredient on bull development and fertility. With bull fertility to blame for a significant portion of reproductive failures in cow-calf operations, University of Illinois researchers decided it was worth a look. (2020-03-10)

Sticky tape: A key ingredient for mapping artifact origins
Researchers at the RIKEN Nishina Center for Accelerator-Based Science in Japan have demonstrated that combining a highly sensitive sulfur analysis technique with simple sulfur-free tape is an effective and harmless way to test extremely small samples of vermilion from artifacts that are thousands of years old. The study used this technique to confirm that trade likely existed between Japan's northern island of Hokkaido and the western part of Japan's mainland--a distance of over 1000 miles--more than 3000 years ago. (2020-03-09)

Study: Organic molecules discovered by Curiosity Rover consistent with early life on Mars
Organic compounds called thiophenes are found on Earth in coal, crude oil and oddly enough, in white truffles, the mushroom beloved by epicureans and wild pigs. Thiophenes were also recently discovered on Mars, and Washington State University astrobiologist Dirk Schulze-Makuch thinks their presence would be consistent with the presence of early life on Mars. This study explores some of the possible pathways for thiophenes' origins on the red planet. (2020-03-05)

All-solid-state lithium-sulfur batteries with high capacity and long life
Toyohashi University of Technology researchers have made an active sulfur material and carbon nanofiber (CNF) composite using a low-cost and straightforward liquid phase process. All-solid-state lithium-sulfur batteries using a sulfur-CNF composite material obtained by liquid phase process show a higher discharge capacity and better cycle stability than those of lithium-ion secondary batteries. Thus, this all-solid-state lithium-sulfur batteries enable leading to applications in large scale batteries such as electric vehicles in the future. (2020-03-05)

Russian scientists found an effective way to obtain fuel for hydrogen engines
A catalyst is needed for a chemical process that releases hydrogen from an H2O molecule. It can be made, for example, from platinum, or from molybdenum. But these are quite expensive materials. Therefore, the output energy is expensive too. (2020-02-20)

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