Showing 20 articles starting at article 361

< Previous 20 articles        Next 20 articles >

Categories: Chemistry: General, Space: Cosmology

Return to the site home page

Chemistry: General Energy: Batteries Energy: Technology
Published

New all-liquid iron flow battery for grid energy storage      (via sciencedaily.com)     Original source 

A new iron-based aqueous flow battery shows promise for grid energy storage applications.

Chemistry: General
Published

A reliable and efficient computational method for finding transition states in chemical reactions      (via sciencedaily.com)     Original source 

A computational method for finding transition states in chemical reactions, greatly reducing computational costs with high reliability, has been devised. Compared to the most widely used existing method, the present method reduces the total computational cost by approximately 50 to 70%. The development, available on GitHub, is poised to accelerate advancements in material science, making the exploration of chemical reactions more accessible and efficient.

Chemistry: General Chemistry: Inorganic Chemistry Environmental: General Environmental: Water Geoscience: Environmental Issues Geoscience: Geochemistry
Published

Major environmental benefits recycling gold with biodiesel      (via sciencedaily.com)     Original source 

Researchers have developed an environmentally friendly method for recycling and purifying metals. Using gold earrings from a pawnshop in Gothenburg and biodiesel from the nearest filling station, the discovery could change an industry that is currently dependent on large amounts of fossil oil.

Chemistry: Biochemistry Chemistry: General Chemistry: Inorganic Chemistry Environmental: Water Geoscience: Environmental Issues Geoscience: Geochemistry
Published

Say hello to biodegradable microplastics      (via sciencedaily.com)     Original source 

Finding viable alternatives to traditional petroleum-based plastics and microplastics has never been more important. New research shows that their plant-based polymers biodegrade -- even at the microplastic level -- in under seven months.

Chemistry: Biochemistry Chemistry: General Chemistry: Inorganic Chemistry Chemistry: Organic Chemistry Energy: Fossil Fuels
Published

New reactor could save millions when making ingredients for plastics and rubber from natural gas      (via sciencedaily.com)     Original source 

A new way to make an important ingredient for plastics, adhesives, carpet fibers, household cleaners and more from natural gas could reduce manufacturing costs in a post-petroleum economy by millions of dollars, thanks to a new chemical reactor.

Biology: Botany Chemistry: General Chemistry: Inorganic Chemistry Ecology: Endangered Species Environmental: General Geoscience: Environmental Issues Geoscience: Geochemistry
Published

New route to recyclable polymers from plants      (via sciencedaily.com)     Original source 

Cellulose, abundantly available from plant biomass, can be converted into molecules used to make a new class of recyclable polymers, to sustainably replace some plastics.

Chemistry: General Chemistry: Inorganic Chemistry Environmental: General Environmental: Water Geoscience: Environmental Issues Geoscience: Geochemistry Physics: General Physics: Optics Physics: Quantum Computing Physics: Quantum Physics
Published

Cleaning up environmental contaminants with quantum dot technology      (via sciencedaily.com)     Original source 

The 2023 Nobel Prize in Chemistry was focused on quantum dots -- objects so tiny, they're controlled by the strange rules of quantum physics. Quantum dots used in electronics are often toxic, but their nontoxic counterparts are being explored for uses in medicine and in the environment, including water decontamination. One team of researchers has specially designed carbon- and sulfur-based dots for these environmental applications.

Chemistry: General Chemistry: Inorganic Chemistry Chemistry: Organic Chemistry Energy: Fossil Fuels Environmental: General Geoscience: Environmental Issues Geoscience: Geochemistry
Published

Recyclable reagent and sunlight convert carbon monoxide into methanol      (via sciencedaily.com)     Original source 

Scientists have demonstrated the selective conversion of carbon dioxide (CO2) into methanol using a cascade reaction strategy. The two-part process is powered by sunlight, occurs at room temperature and at ambient pressure, and employs a recyclable organic reagent that's similar to a catalyst found in natural photosynthesis.

Offbeat: General Offbeat: Space Space: Astronomy Space: Astrophysics Space: Cosmology Space: Exploration Space: General Space: Structures and Features
Published

Scientists find one of the most ancient stars that formed in another galaxy      (via sciencedaily.com)     Original source 

The first generation of stars transformed the universe. Inside their cores, simple hydrogen and helium fused into a rainbow of elements. When these stars died, they exploded and sent these new elements across the universe. The iron running in your veins and the calcium in your teeth and the sodium powering your thoughts were all born in the heart of a long-dead star.

Biology: Biochemistry Biology: Cell Biology Biology: General Chemistry: Biochemistry Chemistry: General Ecology: Animals Energy: Batteries Environmental: General Environmental: Water Geoscience: Environmental Issues Geoscience: Geochemistry
Published

Crawfish could transfer ionic lithium from their environment into food chain      (via sciencedaily.com)     Original source 

Lithium-ion rechargeable batteries are showing up in ever more devices, and the increasing use of this technology means more lithium is expected to find its way into the environment as a contaminant. In new research, a team has explored how this ion accumulates in a common Southern crustacean, the crawfish, with implications for the environment and public health.

Chemistry: General Chemistry: Inorganic Chemistry Engineering: Nanotechnology Environmental: General Geoscience: Environmental Issues Geoscience: Geochemistry
Published

Toxic metal particles can be present in cannabis vapes even before the first use, study finds      (via sciencedaily.com)     Original source 

Though vapes have been heralded as a 'safer' way to consume either nicotine or cannabis, they present their own suite of risks that are being revealed through increasing regulation. Now, scientists have discovered that nano-sized toxic metal particles can be present in cannabis vaping liquids even before any heating occurs, and the effect is worse in illicit products.

Chemistry: Biochemistry Chemistry: General Chemistry: Inorganic Chemistry Chemistry: Organic Chemistry Offbeat: General Physics: Optics
Published

Molecular crystal motors move like microbes when exposed to light      (via sciencedaily.com)     Original source 

At first glance, Rabih Al-Kaysi's molecular motors look like the microscopic worms you'd see in a drop of pond water. But these wriggling ribbons are not alive; they're made from crystallized molecules that perform coordinated movements when exposed to light. With continued development, these tiny machines could be used as drug-delivery robots or engineered into arrays that direct the flow of water around submarines.

Chemistry: General Chemistry: Inorganic Chemistry Chemistry: Organic Chemistry Engineering: Nanotechnology
Published

Sustainable solution for wastewater polluted by dyes used in many industries      (via sciencedaily.com)     Original source 

Water pollution from dyes used in textile, food, cosmetic and other manufacturing is a major ecological concern with industry and scientists seeking biocompatible and more sustainable alternatives to protect the environment. A new study has discovered a novel way to degrade and potentially remove toxic organic chemicals including azo dyes from wastewater, using a chemical photocatalysis process powered by ultraviolet light.

Chemistry: General Chemistry: Organic Chemistry Physics: General Physics: Optics Physics: Quantum Computing Physics: Quantum Physics
Published

Spectroscopy and theory shed light on excitons in semiconductors      (via sciencedaily.com)     Original source 

Researchers have made very fast and very precise images of excitons -- in fact, accurate to one quadrillionth of a second and one billionth of a meter. This understanding is essential for developing more efficient materials with organic semiconductors.

Chemistry: Biochemistry Chemistry: General Chemistry: Inorganic Chemistry Chemistry: Organic Chemistry Energy: Alternative Fuels Environmental: General Environmental: Water Geoscience: Earth Science Geoscience: Environmental Issues Geoscience: Geochemistry Geoscience: Geology Geoscience: Oceanography
Published

Harnessing hydrogen at life's origin      (via sciencedaily.com)     Original source 

A new report uncovers how hydrogen gas, the energy of the future, provided energy in the past, at the origin of life 4 billion years ago. Hydrogen gas is clean fuel. It burns with oxygen in the air to provide energy with no CO2. Hydrogen is a key to sustainable energy for the future. Though humans are just now coming to realize the benefits of hydrogen gas (H2 in chemical shorthand), microbes have known that H2 is good fuel for as long as there has been life on Earth. Hydrogen is ancient energy.

Chemistry: General Energy: Batteries Energy: Technology Engineering: Nanotechnology Environmental: General Geoscience: Geochemistry
Published

Fast-charging lithium-sulphur batteries on the horizon      (via sciencedaily.com)     Original source 

New research shows that the next generation of lithium-sulphur (Li||S) batteries may be capable of being charged in less than five minutes, instead of several hours as is currently the case.

Chemistry: General Chemistry: Inorganic Chemistry Chemistry: Thermodynamics Physics: Optics
Published

Using light to produce medication and plastics more efficiently      (via sciencedaily.com)     Original source 

Anyone who wants to produce medication, plastics or fertilizer using conventional methods needs heat for chemical reactions -- but not so with photochemistry, where light provides the energy. The process to achieve the desired product also often takes fewer intermediate steps. Researchers are now going one step further and are demonstrating how the energy efficiency of photochemical reactions can be increased tenfold. More sustainable and cost-effective applications are now tantalizingly close.

Space: Astronomy Space: Astrophysics Space: Cosmology Space: Exploration Space: General Space: Structures and Features
Published

Largest-ever map of universe's active supermassive black holes released      (via sciencedaily.com)     Original source 

Astronomers have charted the largest-ever volume of the universe with a new map of active supermassive black holes living at the centers of galaxies. Called quasars, the gas-gobbling black holes are, ironically, some of the universe's brightest objects. The new map logs the location of about 1.3 million quasars in space and time, the furthest of which shone bright when the universe was only 1.5 billion years old. The work could help scientists better understand the properties of dark matter.

Chemistry: General Physics: General Physics: Optics Physics: Quantum Physics
Published

Breakthrough in ultraviolet spectroscopy      (via sciencedaily.com)     Original source 

Physicists achieve major leap in precision and accuracy at extremely low light levels.

Chemistry: Biochemistry Chemistry: General Chemistry: Organic Chemistry
Published

Printed polymer allows researchers to explore chirality and spin interactions at room temperature      (via sciencedaily.com)     Original source 

A printable organic polymer that assembles into chiral structures when printed has enabled researchers to reliably measure the amount of charge produced in spin-to-charge conversion within a spintronic material at room temperature.