Trapping gases better with boron nitride "nanopores"
What is common between a technology for storing energy in a solar cell and that for water purification? They both rely on the use of porous materials, or more specifically, 'nanoporous' materials that can trap gas molecules within narrow spaces on th.....»»
Research finds ponds release more greenhouse gas than they store
Though human-made ponds both sequester and release greenhouse gases, when added up, they may be net emitters, according to two related studies by Cornell researchers......»»
UGreen 300W GaN Charger review: Fast-charging with lots of high-power USB-C
The UGreen 300W GaN Charger is a heavy-duty USB-C desktop charger to ensure your entire setup is always charged.Gallium Nitride (GaN) semiconductor technology seems to be becoming more popular, and new chargers and batteries are making the most of th.....»»
Diesel exhaust gases found to harm insects: Animal ecologists study the effects on bumblebees for the first time
The decline of insects threatens many ecosystems worldwide. While the effects of pesticides are well researched, there has been a lack of knowledge about the effects of other anthropogenic pollutants. Animal ecologists at the University of Bayreuth h.....»»
NASA"s new greenhouse gas detector moves closer to launch
A state-of-the-art imaging spectrometer, which will measure the greenhouse gases methane and carbon dioxide from space, moved closer to launch this month after being delivered to a clean room at Planet Labs PBC (Planet) in San Francisco......»»
Novel device combines nanopores with electronic signals for disease detection
In living organisms, cells have a very high capacity to process and communicate information by moving molecules or ions through tiny channels that span the cell membrane. UC Santa Cruz Professor of Electrical and Computer Engineering Marco Rolandi's.....»»
International report confirms record-high greenhouse gases, global sea levels in 2022
Greenhouse gas concentrations, global sea level and ocean heat content reached record highs in 2022, according to the 33rd annual State of the Climate report......»»
Researchers reversely trap isolated atoms in high oxidation to accelerate oxygen evolution reaction kinetics
Single-atom catalysts (SACs), representing the ultimate high atom utilization efficiency and specific activity, have arguably become the most active new frontier in heterogeneous catalysis. The technology of atom trapping based on support effects is.....»»
Zimbabwe"s climate action plan: A win for the environment, health and energy
The dumping of billions of tons of carbon dioxide and other greenhouse gases into the atmosphere yearly is already having a devastating impact around the world. This includes widespread flooding and droughts, raging wildfires, heat waves and record t.....»»
Study quantifies link between greenhouse gases, polar bear survival
Polar bears have long symbolized the dangers posed by climate change, as rising temperatures melt away the Arctic sea ice they depend upon for survival......»»
Idaho"s Silver Valley is still at risk 50 years after mine fire caused largest lead-poisoning case in US history
On Sept. 3, 1973, a fire swept through the baghouse of the Bunker Hill mine in Idaho's Silver Valley. The building was designed to filter pollutants produced by smelting, the melting of rocks that separates metal from its ore. The gases produced in t.....»»
Greenhouse gases are changing air flow over the Pacific Ocean, raising Australia"s risks of extreme weather
After a rare three-year La Niña event brought heavy rain and flooding to eastern Australia in 2020-22, we're now bracing for the heat and drought of El Niño at the opposite end of the spectrum......»»
Researchers develop novel technique for sniffing out toxic algae blooms
Researchers at Oregon State University have developed a new way to monitor the danger associated with algae blooms: "sniffing" the water for gases associated with toxins......»»
Scientists trap light inside a magnet
A new study led by Vinod M. Menon and his group at the City College of New York shows that trapping light inside magnetic materials may dramatically enhance their intrinsic properties. Strong optical responses of magnets are important for the develop.....»»
Human scent receptors could help "sniff out" nerve gases in new sensor
By some estimates, the human nose can detect up to a trillion different smells with its hundreds of scent receptors. But even just catching a quick whiff of certain chemicals known as nerve agents can be lethal, even in tiny amounts. Researchers repo.....»»
New metalens lights the way for advanced control of quantum emission
Quantum emission is pivotal to realizing photonic quantum technologies. Solid-state single photon emitters (SPEs), such as hexagonal boron nitride (hBN) defects, operate at room temperature. They are highly desirable due to their robustness and brigh.....»»
Boron nitride-based nanocomposites have unexpected properties, researchers discover
Just as carbon makes up both the brittle core of a No. 2 pencil and the harder-than-steel diamond in a cutting tool, boron nitride gives rise to compounds that can be soft or hard. Yet, unlike carbon, far less is known about boron nitride's forms and.....»»
Enhanced light absorption in thin silicon photodetectors with photon-trapping structures
Photonic systems are quickly gaining traction in many emerging applications, including optical communications, lidar sensing, and medical imaging. However, the widespread adoption of photonics in future engineering solutions hinges on the cost of man.....»»
Report: Halogenated greenhouse gases still being emitted in Germany
In the past, they were found in every refrigerator and aerosol until it was discovered that they had ripped a hole in the ozone layer protecting Earth's atmosphere: chlorofluorocarbons, in short CFCs......»»
Spin defects in hexagonal boron nitride created by helium ion bombardment
National University of Singapore (NUS) physicists have developed a method using a focused beam of helium ions to create arrays of defects in hexagonal boron nitride (hBN) that can potentially be used for magnetic sensing applications......»»
Team develops highly active catalyst for alkaline water electrolysis using boron and sulfur
Development of hydrogen-related technologies is essential to realize and sustain a carbon-neutral society. Hydrogen is obtained from water electrolysis; however, the existing catalysts are made of rare and expensive metals. A research group led by th.....»»